c Interchangeable lens camera, camera body, lens unit, and busy signal control method By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An aspect of the present invention provides an interchangeable lens camera having a camera body and a lens unit that is freely attachable and detachable to the camera body. In the interchangeable lens camera, a communications unit in the camera body sends via communications terminals (MT_MOSI and MT_MISO) an INTR_BUSY control instruction that instructs whether to make notification with a busy signal (INTR_BUSY signal) for any operation out of a plurality of types of operations that can be executed, and the lens unit or camera body communications unit sets the busy signal (INTR_BUSY) to an ON state (low level) only during the period of operation of the type indicated by the INTR_BUSY control instruction. Full Article
c Component cover having variable light transmissivity By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT In a broad aspect, embodiments described herein are generally directed to an electronic device comprising: a housing; a component mounted within the housing; a component cover in fixed relation to the housing; wherein the component cover is configurable between at least a first state and a second state; and wherein light transmissivity through the component cover is greater when in the second state than when in the first state. In some implementations, in the first state the component cover is substantially opaque, or in the second state the component cover is substantially transparent. Full Article
c System and method for storing images captured from a booth By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A system for capturing images in a booth. The system includes a network, a server communicatively coupled to the network, the server comprising a database operable to store images. The system further includes a booth communicatively coupled to the network, the booth comprising an input device operable to receive one or more inputs from a user, a camera operable to capture one or more images of the user, a display operable to present the one or more images, and a booth computer operable to transmit the one or more images to the server. Full Article
c Dome-shape camera By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A dome-shaped camera comprising: a camera body including a focus adjustment ring for manually performing focus adjustment; a base part which supports the camera body and includes a tilt mechanism which changes an angle of a tilt direction for supporting the camera body; a dome cover which covers the camera body; a mount device which mounts the dome cover on the base part so that the dome cover is rotatable about a center axis of the dome cover; and a power transmitting device which transmits a rotating force in a direction about the center axis added to the dome cover as a rotating force of a focus adjustment ring of the camera supported at any angle in the tilt direction via a power transmission member placed on a tilt axis. Full Article
c Interchangeable lens and camera system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An interchangeable lens attachable to a camera body includes an image pickup optical system configured to form an optical image of an object, and a controller configured to start initializing an optical element included in the image pickup optical system so as to move the optical element to a predetermined position when the controller receives a first signal that commands a start of an initialization from the camera body, and configured to start initializing the optical element after the controller receives identification information from the camera body and a period elapses for which the camera body consumes more than a predetermined amount of power when the controller does not receive the first signal from the camera body. Full Article
c Method and apparatus for determining linear position using multiple magnetic field sensors By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The linear position of an object is estimated using multiple magnetic field sensors and a magnet. The multiple magnetic field sensors are held in fixed relation to one another and in moving relation with respect to the magnet. Readings of the first and second magnetic field sensors and the fixed distance between the first and second magnetic field sensors may be used to estimate the linear position. In some embodiments, an estimated frequency of an approximately sinusoidal field versus position characteristic is also used as part of the estimation. Full Article
c Camera system with rotating mirror By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An image system configured to record a scanned image of an area. The system includes a single two-dimensional (2D) imager and a rotatable mirror. The 2D imager is formed of a two-dimensional (2D) array of light detectors. The 2D imager is operable in a line-scan mode effective to individually sequence an activated line of light detectors at a time. The rotatable mirror is configured to rotate about an axis parallel to a plane defined by the rotatable mirror. The rotation is effective to vary an angle of the rotatable mirror to pan a projected image of the area across the 2D imager. The angle of the rotatable mirror and the activated line of the 2D imager are synchronized such that the scanned image recorded by the 2D imager is inverted with respect to the projected image. Full Article
c Magnetic lens filters and adapter assemblies for a camera By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Provided herein are devices and system to magnetically, rotably secure a lens filter to a camera. Generally the devices and systems comprise a magnet assembly and a lens filter assembly threadably engageable. Also provided are magnetic lens filter systems comprising the engaged magnet and lens filter assemblies and an attachment assembly securable around a camera lens and magnetically attachable to the magnet comprising the magnetic lens filter, magnetic adapter assembly or magnetic adapter. Further provided are camera systems comprising the magnetic lens filter systems rotatably affixed thereto. Full Article
c Camera By www.freepatentsonline.com Published On :: Tue, 23 Jun 2015 08:00:00 EDT A camera includes a positioning member arranged to determine a mirror-down position of a mirror holder, a rotating member rotatably mounted to the positioning member, and an urging member arranged to urge the rotating member. The mirror holder includes a cam portion. The rotating member includes a follower portion arranged to be able to trace the cam portion. When the mirror holder is at the mirror-down position, the follower portion traces a first region of the cam portion to urge the mirror holder toward the mirror-down position by an urging force of the urging member. When the mirror holder is at the mirror-up position, the follower portion traces a second region of the cam portion to urge the mirror holder toward the mirror-up position by the urging force of the urging member. Full Article
c Toy projectile launching system By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A toy projectile launching system including at least one launchable toy projectile, including at least one RFID tag, and a toy projectile launching apparatus, including a housing, a projectile launching mechanism, a projectile receptacle, and an RFID writer adapted to write tag data to the at least one RFID tag, wherein the toy projectile is adapted to be loaded into the projectile receptacle and launched by the projectile launching mechanism. Full Article
c Auxiliary user interface for a transmit controller By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT In an embodiment, a transmit controller compatible with an auxiliary user interface device is provided. The transmit controller has a memory with operational parameters, a control user interface, an auxiliary user interface connector, and a transmit controller processor. The transmit controller processor is configured to transmit the operational parameters to the auxiliary user interface device and modify the operational parameters in accordance with a parameter instruction from the auxiliary user interface device. The transmit controller processor is further configured to receive a control instruction from the control user interface, determine an output signal based on the control instruction and the one or more operational parameters, and transmit the output signal to the model vehicle. Full Article
c Building blocks and building block fasteners By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A building block (100) comprises a first mating portion and a second mating portion which are complementary. The first mating portion comprises a mating protrusion (140) which defines an axially extending through bore (144) and the second mating portion comprises an axially extending mating receptacle (180) which is complementary to the mating protrusion (140). The mating protrusion (140) and the mating receptacle (180) are in communication via the through bore (144), and a fastener anchoring device (146) adapted for engaging with an engagement means (920) of a fastener (900) is formed inside the through bore (144). The through bore (144) is adapted to permit axial insertion of the engagement means (920) of the fastener (900) into the mating protrusion (140). The fastener anchoring device (146) is adapted to obstruct axial passage of the engagement means (920) until the engagement means (920) overcomes the obstruction by negotiating rotationally with the fastener anchoring device (146) to thereby gain axial advancement and enter into engagement with the fastener anchoring device (146). Full Article
c Gravity-slowing self propelling game device By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The game device for a user including a flexible closure for receiving impacts from the user, one or more filler placed inside the flexible closure for reducing recoiling of the flexible closure from the surface on receiving impacts, a mechanical unit attached to the inner walls of the flexible closure and a gravity slowing unit attached to the mechanical unit for reducing the gravitational pull acting on the flexible closure. The mechanical unit includes an electric motor for providing torque, an impact sensor for sensing the impacts received from the user, and a power source for energizing the electric motor and the impact sensor. The gravity slowing unit includes a spring-loaded hinge for stabilizing the flexible closure from impacts projected by the user, a spring-loaded shaft connected to the electric motor through the spring-loaded hinge for rotating to rotate on receiving torque from the electric motor and at least one set of propellers connected to the spring-loaded shaft for the receiving torque and providing thrust against gravitational pull acting on the flexible closure. Full Article
c Collapsible toy blocks By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A collapsible and expandable children's toy building block is described. The toy blocks may be made in various sizes and shapes. The toy block includes an internal frame. A cover is positioned over the internal frame to form the toy block. The toy block converts from a collapsed position to an expanded position, and the toy block converts from the expanded position back to the collapsed position. Full Article
c Managing virtual content based on information associated with toy objects By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The system described in this disclosure may be configured to read information stored on toy objects that indicates whether the toy objects have been used and/or are being used with other toy objects, gaming systems, and/or other devices. The system described in this disclosure may be configured to facilitate an association of the information stored on the toy objects with virtual entities in a virtual space, update virtual content associated with the virtual entities, determine relationships between users, and/or other perform other functions based on the information stored on the toy objects. The information stored on the toy objects may be updated responsive to the toy objects being used by users with other toy objects, gaming systems, and/or other devices. The use of the toy objects by users may include two or more users playing together with toy objects and/or playing with gaming systems associated with the toy objects. Full Article
c Collapsible balloon cup with attachable inflation air tube By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A balloon assembly including a balloon pedestal having a cup attached to a collar and an air tube that can be fixedly attached to a one-way balloon valve. The balloon cup is configured with a plurality of creases that allow it to be folded or otherwise reduced in shape for more economical packaging. The collar and air stem are also oval in shape to further reduce the overall volume of the balloon assembly. The balloon cup can be placed over and secured to the air tube, with the cup supporting the base of the balloon. A rod or similar support can also be placed in the end of the air tube to allow the balloon to be more visible. Full Article
c Developmental activity gym for babies By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A developmental toy for infants including an infant support surface having an open and a folded operative orientation, a first pair of circumferential elements associated therewith and having an open and a folded operative orientation and a second pair of elements, generally similar in configuration to the first pair of circumferential elements, arranged to support toy objects above the infant support surface and having an open and a folded operative orientation and a locking assembly for selectably locking the first and second pairs of circumferential elements in their respective open operative orientations, the open operative orientation of the infant support surface being an angular separation of 180 degrees, the open operative orientation of the first pair of circumferential elements being an angular separation of 180 degrees and the open operative orientation of the first pair of circumferential elements being an angular separation of substantially less than 180 degrees. Full Article
c Robotic marionettes on magnetically-supported and highly mobile puppeteer platforms By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT An apparatus for suspending and positioning marionettes. The apparatus includes a thin, planar support membrane such as a plastic sheet. A tender vehicle is positioned on the upper side of the support membrane. A motor or other drive mechanism selectively positions the tender vehicle relative to the support membrane. The apparatus includes a puppeteer vehicle from which a marionette is suspended. The puppeteer vehicle is positioned proximate to the lower side of the support membrane opposite the tender vehicle. To support the puppeteer vehicle, one or both of the vehicles includes one or more rotatable magnetic elements such that the attractive forces support the weight of the puppeteer vehicle and the marionette. Typically, the puppeteer vehicle is a passive follower, and the drive mechanism of the tender vehicle includes motors to move the magnetic elements and position the tender and following puppeteer vehicle with its marionette to provide a show. Full Article
c Modular blow molded shed with connectors By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT The present invention provides a system, or kit, of blow molded panels having integrally formed connectors which combine to form an enclosure, commonly in the form of a utility shed. The corner sections, roof, wall and floor panels are formed of blow molded plastic with integrally formed connectors to interlock with one another. In one embodiment, the ends of the wall panels have locking plugs that are constructed and arranged to fit into corresponding sockets and slide to an engaged position for interlocking cooperative engagement rigidly connecting the components together. Full Article
c Head structure of robot, and driving method for the head By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A head structure of a robot according to the invention includes a first motor and a second motor so supported side by side within a head of the robot that output shafts are positioned coaxially with each other; a left elastic frame that is so driven by the first motor and one end of which is so fitted as to be rotatable around the output shaft and the other end of which extending in a perpendicular direction from the output shaft is supported by a trunk of the robot; and a right elastic frame that is so driven by the second motor and one end of which is so fitted as to be rotatable around the output shaft and the other end of which extending side by side with the left elastic frame from the output shaft is supported by the trunk. Full Article
c Hand manipulated construction vehicle toy By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT This invention relates to hand manipulated toy construction equipment such as backhoes, trucks, etc. In one embodiment, the truck body is hollow at one end so that the truck may be manipulated by inserting one's arm into the truck body and grasping and manipulating a transverse dowel handle. Spring-loaded means are provided within the truck body and are coupled to the dumper to control the motion of the equipment. A sound module is also provided to simulate construction sounds. Full Article
c Simplified modularized contact type of conductive building block By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A simplified modularized contact type of conductive building block includes: a brick, at least one pair of conductive pieces, a circuit board and a base. The brick includes at least one pair of studs projected from a top thereof. The conductive piece has an insertion electrode and a connection electrode respectively disposed at two ends thereof and a contact electrode disposed between the insertion electrode and the connection electrode. The conductive pieces are inserted through the insertion through holes of the circuit board. The circuit board includes a positive electrode circuit and a negative electrode circuit respectively contacted with the at least one pair of the conductive pieces. The conductive pieces are further inserted through the through holes of the base. The circuit board and the base are fixed in the brick. Full Article
c Toy building block By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A toy building block (1) for stacking is provided on top (4) with one or more studs (3) and in the bottom (7) with recesses (6). The studs (4) show a toothwheel-like cross-section with rounded teeth crests (12) and rounded grooves (10) between the teeth (12) as well. The recesses (6) are provided each with a number of vertically extending lands (14) matching in shape the grooves (10). The studs easily slide in and out of the recesses (6), yet a rotational arretation of low play is obtained. Preferably, the building blocks are produced by a blowing process and may be provided with screws (21) for a safe interconnection. External slots (46) may allow the combination with panels (47) bearing images, additional functional elements etc. Full Article
c Assembly kit for creating three-dimensional formations, especially toy structures from prefabricated modular building blocks By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT An improved set of toy building or construction blocks, each block having a substantially square cross-section and a generally rectilinear configuration. Incorporated into the structure of the individual toy blocks are transversely oriented slots, grooves and protrusions of predetermined size and location. The slots, grooves and protrusions of pre-determined size and location are of either male or female configuration disposed medially along one or more plane of each block. When the male protrusion of one block is introduced perpendicular to the female slot of one end of another block, a frictional engagement is created resulting in a right angle. When the male protrusion of one block is introduced to the female slot in a linear fashion the result is a line segment. Joining a plurality of said toy building or construction blocks using various perpendicular connections in conjunction with linear connections results in the stable formation of construction or geometric structures without the use of fasteners or other connecting elements. Full Article
c Game calling device having varied pitch and intensity By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A game calling device including a mouthpiece having inlet and outlet portions and holes between the inlet and outlet portions, whereby sounds having varied pitch and intensity can be generated. The game calling device also includes an inner tubular member that at least partially houses a reed and configured to be selectively positioned on the axial direction of the reed so that the emitted sound can be varied based at least on the position of the inner tubular member along the reed and thereby allowing the game calling device to be used hands-free. Full Article
c Magnetic module and construction kit By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A toy construction kit has a plurality of magnetic modules, each with a housing having a plurality of sides, each side having an internal hollow. A magnet is contained within each of the hollows at a given polar orientation relative to the housing and the hollow. The hollow has dimensions that permit the magnet to move within the hollow, but substantially constrains the magnet to the given polar orientation relative to the housing. When a side of a module is placed near a side of another module, they are bound by magnetic attraction by the respective aligned magnets, either because the polar orientations are opposite when they are initially juxtaposed or due to shifting of one or both magnets in their respective hollows to achieve relative polar opposition. Full Article
c Toy construction system having a rotatable connector/spinner device By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A toy construction system is provided that includes, in a toy construction system having a multiplicity of interconnecting members adapted for constructing a variety of projects, a rotator head device including a device housing having a conical-shaped cavity formed therein. The housing includes a plurality of female twist-lock connectors formed on the outer surface thereof, and the female connectors are adapted for attaching a first member of the toy construction system to the rotator head device housing. A rotating member, which is conical in shape and slightly smaller in size than the cavity formed in the device housing is included. The rotating member is rotatably disposed within the cavity and has a male twist-lock connector stem extending from an end thereof for connecting a second member of the toy construction system to the rotating member, whereby the first member is rotatable with respect to the second member. Full Article
c Image capturing toy By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An image capturing toy may include a toy vehicle that may include at least one wheel and a camera, the camera including a camera lens and/or a housing that may include a first aperture and a wheel chock configured to inhibit displacement of a wheel. The housing may be moveable from an open position in which the toy vehicle may be placed in and removed from the housing, to a closed position in which the housing releasably encases the toy vehicle such that the camera lens is accessible through the first aperture and the wheel chock engages the at least one wheel. Full Article
c Convertible headgear By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Headgear that can be converted into another object, comprising a figurine provided with a hollow base which, in at least one configuration, defines an object including a volume for receiving an element. In a second configuration, the hollow base can be turned partially inside out to form a second object including another reception volume and, in a third configuration, the hollow base can be turned fully inside out to form a third object. Full Article
c Interactive building block toy By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An interlocking toy block set may include at least two blocks with at least one constraining groove formed in a surface of each of the at least two blocks. At least one connector may have at least two attachment members formed thereon. The attachment members may have a cross-sectional shape corresponding to a cross-sectional shape of the constraining grooves. Full Article
c Water disc toy By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A water disc toy comprises an upper platter, a lower platter, and a plurality of supports. Both the upper platter and the lower platter comprise a plastic structure with a flat or even slightly convex outer surface which facilitates skipping the device across a water surface. The upper and lower platter are interconnected with the plurality of integral supports. Each support comprises a small cylindrical plastic structure. The area between the upper platter, the lower platter, and the supports is filled with a lightweight foam material which allows the entire device to float in water. Full Article
c Action figures with slide devices and methods of use By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT In some embodiments, a kit includes a slide device and an action figure coupled to the slide device. The kit also includes a tool configured to modify a shape of a base material such that a path that has a non-zero height is defined within the base material. The action figure and the slide device can collectively slide down at least a portion of the path when disposed on the path. The base material can be, for example, snow or sand. In some embodiments, the tool can include tool body having a length dimension, a width dimension and a height dimension. The length dimension can be greater than the width dimension and the height dimension can be greater than at least half a height dimension of the slide device and the action figure collectively. A handle can be coupled to the tool body. Full Article
c Moldable sand compositions and methods for making the same By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention relates to moldable sand compositions, methods for making the moldable sand compositions, and methods for using the moldable sand compositions. In a particular embodiment, the moldable sand composition comprises between about 70% to about 95% sand, between about 5% to about 30% water, a polar polymeric resin, a crosslinking agent, and a humectant. In an exemplary embodiment, the composition contains no oils, waxes, glycols, or rubbers. The composition is capable of becoming hardened over time in order to maintain the achieved shape, and can be re-wetted and molded again after becoming hardened. Full Article
c Interactive toy apparatus and method of using same By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A toy apparatus and method for interactive communication between a cellphone and a toy apparatus is disclosed. In an embodiment of the present invention, a method is provided, the method including: transmitting by the cellphone at least one signal; receiving by the toy apparatus the at least one signal; analyzing by the toy apparatus the at least one signal; determining by the toy apparatus at least one response to the at least one signal; and producing by the toy apparatus the at least one response. Full Article
c Print-level sensing for interactive play with a printed image By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method, system, and apparatus are provided for interactively playing with a printed image. A printed image resembling a game board, book, or picture, is provided. The printed image includes a registration area and a plurality of feedback areas in which an indicator color is printed at a predetermined level, e.g. percentage of area. A figurine is provided that includes a light source and light sensor. The light source and light sensor are placed in proximity to the designated areas in the image to sense the level of the indicator color printed therein and an associated output is provided. The registration area is useable to identify a predefined template associated with the image to allow feedback of the figurine with a plurality of different printed images. The figurine can include an ultraviolet light source to activate graphics printed in the image with photochromic ink. Full Article
c Model helicopter attitude control and receiving device with reduced size and self-learning features By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A model aircraft control and receiving device in a housing, comprising an electronic, gyroscopic multi-axis programmable flight attitude controller, having control inputs for a plurality of control channels and inputs for gyroscope signals, wherein the flight attitude controller provides at least one input for a receiver module disposed inside or outside of the housing of the flight attitude controller. The device may be used in a method for controlling and stabilizing a model helicopter, wherein the control comprises a self-learning function and/or the control comprises a coupling of the tail controller to the swashplate controller and/or the control comprises a stopping support function. Full Article
c Action figure with accessories By www.freepatentsonline.com Published On :: Tue, 08 Dec 2015 08:00:00 EST A toy is provided, the toy having: an action figure with a pair of appendages movably secured thereto for movement between a first separated position and a second un-separated position; a pair of accessories removably secured to the pair of appendages; and wherein the pair of accessories are configured to be secured to each other and form an item when the pair of appendages are in the second un-separated position and the pair of accessories are secured to the pair of appendages. Full Article
c Driving and controlling method for biomimetic fish and a biomimetic fish By www.freepatentsonline.com Published On :: Tue, 23 Feb 2016 08:00:00 EST An aquatic toy that is a biomimetic fish with a watertight body portion. The body portion contains a battery electrically connected via a controller to at least one coil. The coil is positioned relative to a magnet and the coil can be caused to oscillate by virtue of a controller defined alternating current passing through the coil. The oscillation of the coil causes movement of a tail fin that is engaged to said watertight body to cause the fish to move forward through a body of water. Full Article
c Interactive toys By www.freepatentsonline.com Published On :: Tue, 01 Mar 2016 08:00:00 EST A plurality of individual toys, at least a first one of which generates acoustic signals and at least a second one of which receives acoustic signals. When the second toy receives acoustic signals from the first toy, it responds, for example, by generating a sound and/or controlling its motion. In a preferred embodiment of the invention, the toys flock and/or form a procession of toys which follow a leader toy, for example a mother goose and a plurality of following and preferably quacking goslings. Full Article
c All fiber passively Q-switched laser By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Embodiments relate to an all fiber passively Q-switched laser. The laser includes a large core doped gain fiber having a first end. The large core doped gain fiber has a first core diameter. The laser includes a doped single mode fiber (saturable absorber) having a second core diameter that is smaller than the first core diameter. The laser includes a mode transformer positioned between a second end of the large core doped gain fiber and a first end of the single mode fiber. The mode transformer has a core diameter that transitions from the first core diameter to the second core diameter and filters out light modes not supported by the doped single mode fiber. The laser includes a laser cavity formed between a first reflector positioned adjacent the large core doped gain fiber and a second reflector positioned adjacent the doped single mode fiber. Full Article
c Fiber with asymmetrical core and method for manufacturing same By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An optical active fiber is configured with an asymmetrically-shaped core having at least one long axis and a shortest axis which extends transversely to the long axis. The outmost cladding of the active fiber is configured with a marking indicating the orientation of the short axis. The marking allows for bending the fiber so that the shortest axis extends along and lies in the plane of the bend thereby minimizing distortion of a mode which is guided by the asymmetrically-shaped core as light propagates along the bend. Full Article
c Broadband short pulse fiber lasers capable of generating output spectra broader than gain bandwidth By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Implementations and examples of fiber lasers based on fiber laser cavity designs that produce self-similar pulses (“similaritons”) to achieve a pulse spectral bandwidth greater than a gain spectral bandwidth based on a spectral broadening fiber segment and a spectral filter to ensure the proper similariton conditions. Full Article
c Multi-color harmonic synthesized laser system for laser processing and laser processing method using multi-color harmonic synthesized laser By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A multi-color harmonic synthesized laser system for laser processing and a laser processing method using multi-color harmonic synthesized laser are disclosed. The multi-color harmonic synthesized laser system includes a laser source for providing a single laser wave, a converter for converting the single laser wave into a plurality of harmonic waves with different frequencies, and a modulating unit for modulating amplitudes and relative phases of the harmonic waves to form a plurality of modulated harmonic waves, so as to synthesize the modulated harmonic waves as a single synthesized laser wave, wherein the single synthesized laser wave is focused on an object to perform a laser processing. The converter includes a plurality of non-linear crystals for converting the single laser wave into a fundamental harmonic wave and a plurality of multi-frequency harmonic waves. The harmonic waves are coherent and collinear, and the phases of the harmonic waves are related to one another. Full Article
c Methods of modulating microlasers at ultralow power levels, and systems thereof By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A microlaser system includes an optical source, a microlaser, an actuator switch, and a photovoltaic power source. The microlaser, which includes a control element, is optically pumped by at least a portion of light emitted by the optical source. The actuator switch is configured to be activated by a triggering event. Furthermore, the photovoltaic power source is coupled in a series connection with the actuator switch and the control element, the series connection configured to connect the photovoltaic power source to the control element of the microlaser when the actuator switch is activated by the triggering event. Full Article
c Temperature measurement and control for laser and light-emitting diodes By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The existing diodes in an LED or laser diode package are used to measure the junction temperature of the LED or laser diode. The light or laser emissions of a diode are switched off by removing the operational drive current applied to the diode package. A reference current, which can be lower the operational drive current, is applied to the diode package. The resulting forward voltage of the diode is measured using a voltage measurement circuit. Using the inherent current-voltage-temperature relationship of the diode, the actual junction temperature of the diode can be determined. The resulting forward voltage can be used in a feedback loop to provide temperature regulation of the diode package, with or without determining the actual junction temperature. The measured forward voltage of a photodiode or the emissions diode in a diode package can be used to determine the junction temperature of the emissions diode. Full Article
c Low inductance laser diode bar mount By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The laser mount arrangement can have a laser bar and a driver positioned adjacent to one another and secured against a connection face of a heat sink base. The heat sink base is connected to and forms a first electrical connection between the laser bar and the driver. A second electrical connection is also provided between the laser bar and the driver opposite the heat sink base, which can be in the form of a flexible metal sheet with a narrow upward fold. This arrangement can provide a low inductance path for the current. Full Article
c Conduction cooled high power semiconductor laser and method for fabricating the same By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A conduction cooled high power semiconductor laser and a method for fabricating the same are provided. The conduction cooled high power semiconductor laser comprises a heat sink (2) and one or more semiconductor laser units (1). The semiconductor laser unit consists of a laser chip (3), a substrate (4) bonded to the laser chip for heat dissipation and electrical connection, and an insulation plate (5) soldered to the substrate for insulation and heat dissipation. The semiconductor laser unit is soldered on the heat sink with the insulation plate therebetween. The semiconductor laser unit may be tested, aged, and screened in advance, and thereby the yield of the lasers can be improved and the manufacturing costs can be reduced. The laser has desirable heat dissipation performance, high reliability, and is applicable to high temperature and other complex and volatile environments. Full Article
c Hyperbolic metamaterials as distributed bragg mirrors for high power VCSEL devices By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Implementing a layered hyperbolic metamaterial in a vertical cavity surface emitting laser (VCSEL) to improve thermal conductivity and thermal dissipation thereby stabilizing optical performance. Improvement in the thermal management and power is expected by replacing the distributed Bragg reflector (DBR) mirrors in the VCSEL. The layered metamaterial structure performs the dual function of the DBR and the heat spreader at the same time. Full Article
c Interposer configuration with thermally isolated regions for temperature-sensitive opto-electronic components By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An interposer (support substrate) for an opto-electronic assembly is formed to include a thermally-isolated region where temperature-sensitive devices (such as, for example, laser diodes) may be positioned and operate independent of temperature fluctuations in other areas of the assembly. The thermal isolation is achieved by forming a boundary of dielectric material through the thickness of the interposer, the periphery of the dielectric defining the boundary between the thermally isolated region and the remainder of the assembly. A thermo-electric cooler can be used in conjunction with the temperature-sensitive device(s) to stabilize the operation of these devices. Full Article
c Circuitry and method for driving laser with temperature compensation By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A temperature-compensated laser driving circuit for driving a laser component is provided. The temperature-compensated laser driving circuit includes: a temperature compensation circuit, configured to generate a second current based on a first current and a temperature-independent current; and a modulation current generating circuit, configured to generate a modulation current based on the second current, and calibrate optical power output of the laser component based on the modulation current. The first current is proportional to the absolute temperature. The second current and the first current have a slope relative to the absolute temperature respectively, and the slope of the second current relative to the absolute temperature is larger than of the slope of the first current relative to the absolute temperature. Full Article