Abstract: Disclosed is a system and method for communication using an efficient fiber-to-chip grating coupler with a high coupling efficiency.

Abstract: A lens module is provided, including a holder, a barrel, and an optical element. The optical element is affixed in the barrel, and the holder has a first material. Additionally, the barrel is affixed in the holder and has a second material, wherein the hardness of the first material is greater than the hardness of the second material.

Abstract: An adjustment mechanism is adapted to fix and adjust an optical element. The adjustment mechanism includes a housing, a fixing member and an elastic member. The housing is adapted for accommodate the optical element, and has a side wall, and the side wall has a locking portion protruding outward. The fixing member is disposed beside the side wall. The fixing member has a joint portion. The elastic member is disposed between the fixing member and the housing. The elastic member has a first end and a second end relative to the first end. The first end is combined with the joint portion, and the second end is abutted against the side wall. The adjusting part passes through the opening and connects with the locking portion. A projection device is further provided. The adjustment mechanism and the projection device of the invention may improve the assembly process and reduce costs.

Abstract: A digital microscopy system includes a microscope with optics. The digital microscopy system also includes a digital camera operatively secured to the microscope such that the digital camera operates to acquire digital photographs through the optics of the microscope. A controller is communicatively connected to the digital camera, such that the computer receives the acquired digital photographs from the digital camera. The controller further executes computer-readable code upon which the computer operates a graphical display to present a graphical user interface (GUI) configured to present at least one of the acquired digital photographs and at least one stored sample image.

Abstract: The disclosed system for varifocal adjustments may include a frame, an optical lens pair supported by the frame, and a brake mechanism coupled to the frame. The optical lens pair may include a first lens that is movably coupled to the frame and a second lens that is fixedly coupled to the frame. The brake mechanism may be configured to frictionally stop movement of the first lens and to maintain a position of the first lens. Various other devices, systems, and methods are also disclosed.

Abstract: Disclosed is a lens driving apparatus. The lens driving apparatus includes a base, a yoke coupled to the base, having an upper surface formed with a hole, a closed side surface, and an opened bottom surface, a bobbin movably installed in an inner portion of the yoke, a lens module coupled to the bobbin to go in and out the hole according to movement of the bobbin, a magnet fixed to an inner portion of the yoke, a coil fixed to an outer portion of the bobbin while facing the magnets, and springs coupled to the bobbin to provide restoration force to the bobbin.

Abstract: Stereoscopic viewing systems may be adjusted for a user's inter-pupillary distance (IPD). An inter-pupillary distance (IPD) value is determined from a signal from a position sensitive device coupled to two moveable sighting fixtures mounted to a head mounted display (HMD) having two fixed optics configured for a specific inter-pupillary distance. The position sensitive device is configured to produce a signal that corresponds to a distance between the two sighting fixtures. The images are warped with a processor to optimize display of the images with the two fixed optics for the determined IPD value.

Abstract: A lens assembly includes a lens including an optical portion to refract light and a flange portion extended along a periphery of at least a portion of the optical portion, and a lens barrel to accommodate the lens. The flange portion has a non-circular shape and includes a first di-cut portion on a first side surface of the flange portion, a second di-cut portion on a second side surface of the flange portion, and arc portions connecting the first di-cut portion and the second di-cut portion. A first distance between the first di-cut portion and an optical axis of the lens and a second distance between the second di-cut portion and the optical axis of the lens are smaller than a distance between respective opposite ends of the arc portions and the optical axis.

Abstract: A diopter adjustment mechanism comprises a scope tube with a first female thread and a second female thread. The first female thread has a first pitch and is disposed on the scope tube forming a spiral thread and lands between the spiral threads. The second female thread has a second pitch and is disposed on the lands of the first female thread. A jam nut has a male thread corresponding to and engaging the second female thread.

Abstract: An endoscope cleansing accessory is described for use with an automatic endoscope reprocessing (AER) apparatus which utilizes the motive force provided by a flowing cleansing fluid already within the AER to actuate an actuator wheel of the endoscope during the cleansing process. The movement or actuation of the actuator wheel during cleansing in turn imparts a back and forth motion to an elevator platform or forceps raiser within the endoscope to loosen tissue and other particles that are then flushed out by the flowing cleansing fluid.

Abstract: A lens driving module includes a base, a shield can, a driving mechanism, a space maintaining element and a damping element. The base has an opening. The shield can is coupled to the base and has a central aperture corresponding to the opening. The driving mechanism is disposed in the shield and configured to drive a lens unit to move. The space maintaining element is in physical contact with the shield can. The space maintaining element includes a plastic frame portion and a metal structure portion. The metal structure portion includes pins extending toward the base. The metal structure portion is insert-molded with the plastic frame portion to form the space maintaining element. The damping element is connected to the pins and the lens unit. The pins of the metal structure portion are located closer to the optical axis than part of the metal structure portion without the pins.

Abstract: A projector includes a light projector and a position adjuster. The light projector includes a holder holding a plurality of lenses and a movable frame element provided to be pivotable around the optical axis of the plurality of lenses and that pivots to move a target lens out of the plurality of lenses along the optical axis. The position adjuster includes an arm member connected to the movable frame element that pivots along with the movable frame element, an operation member provided to be pivotable around a pivotal axis substantially parallel to the optical axis and pivots when an end portion of the operation member opposite the arm member is moved, and a linkage mechanism that links the arm member to the operation member and causes the arm member to pivot in response to the pivotal motion of the operation member.

Abstract: An adapter assembly and a projection device are provided. The projection device includes a device body, an illumination system, a light valve, the adapter assembly, and a projection lens. The light valve is disposed in the device body to convert the illuminating beam provided by the illumination system into an image beam. The projection lens includes a plurality of protruding claws that surround a circumferential surface of a main body and protrude along the radial direction. The adapter assembly includes a first ring member, a rotating plate, and a second ring member sequentially disposed along the axial direction of the adapter assembly. When the projection lens is assembled to the adapter assembly, the rotating plate rotates to limit the protruding claws within a limiting assembly space formed by the first ring member and the second ring member to lock the projection lens to the device body.

Abstract: An optical apparatus and an image pickup apparatus capable of reducing an impact force transmitted to an inside without increasing a total length is provided. A frame member which moves forward and backward in the optical axis direction integrally with an extension lens barrel has a recess facing a protrusion of a cam barrel in a radial direction. An elastic member urges the extension lens barrel and the frame member to be away from each other in the optical axis direction. A restriction member holds the frame member with a first gap formed between the extension lens barrel and the frame member in the optical axis direction. A second gap formed between the protrusion and the recess in the optical axis direction is smaller than the first gap.

Abstract: The optical system includes a base having a groove and an adjacent slot therein. The system also includes at least one optical cell slidably alignable along the groove, and at least one clamp comprising a lower end and an upper end. The lower end is slidably alignable along the slot and is secured at a set location so that the upper end secures the at least one optical cell along the groove. The slot may extend parallel to the groove. The clamp may include at least one preloaded fastener arrangement securing the lower end of the clamp to the base. The preloaded fastener may include a bolt, a spring biasing the bolt, and a threaded backing plate within the slot and receiving the bolt.

Abstract: A lens driving device, includes: a fixing portion; a lens support; a first slider; a second slider held by the first slider so as to be slidable in a first direction; and a third slider which is provided on the lens support, and is held by the second slider so as to be slidable in a second direction, wherein any one of the first slider and the second slider has a first projecting member extending along the first direction, and another one of the first slider and the second slider has a first groove that is to fit aver the first projecting member, and wherein any one of the second slider and the third slider has a second projecting member extending along the second direction, and another one of the second slider and the third slider has a second groove that is to fit over the second projecting member.

Abstract: A camera module includes an imaging lens assembly, an image sensor, a first reflecting member and a first driving apparatus. The imaging lens assembly is for converging an imaging light on an image surface. The image sensor is disposed on the image surface. The first reflecting member is located on an image side of the imaging lens assembly, the first reflecting member is for folding the imaging light, and has a first translational degrees of freedom. The first reflecting member is assembled on the first driving apparatus, and the first driving apparatus is for driving the first reflecting member moving along the first translational degrees of freedom.

Abstract: The present disclosure relates to holders for protecting intraocular lenses and methods of use. The holder includes a posterior wall and an annular wall extending anteriorly from the posterior wall and having an anterior edge. An internal space is defined by the posterior wall and the annular wall. The internal space is sized to receive a lens body of the intraocular lens. The holder also includes a locking feature configured to secure the intraocular lens. At least a portion of the locking feature is anterior to the intraocular lens when positioned in the holder.

Abstract: The disclosure provides an adjustable optical module, including an optical element, a carrier, a frame, two first positioning members, a base, and two second positioning members. One of the carrier and the frame includes two first pivot shafts that protrude from both sides and extend along a first axis, and the other includes two first pivot holes. The two first pivot shafts are located in the two first pivot holes, respectively. One of the frame and the base includes two second pivot shafts that protrude from both sides and extend along a second axis, and the other includes two second pivot holes. The two second pivot shafts are located in the two second pivot holes, respectively. The disclosure provides a projector, including a light source module, a light valve, a projection lens, and the foregoing adjustable optical module.

Abstract: An adjusting module and a projector are provided. The adjusting module includes a frame, an optical assembly, an elastic assembly and an adjusting member. The optical assembly is fixed to the elastic assembly. The elastic assembly is detachably assembled on the frame, and includes a fixing portion, a first elastic portion and a second elastic portion. The fixing portion is fixed to the optical assembly. The first and second elastic portions respectively include first and second hooks and first and second elastic arms. The first and second elastic arms are respectively connected to the fixing portion, and the first and second hooks are respectively assembled to the frame. The adjusting member penetrates through the through hole and leans against the optical assembly. When the adjusting member is adjusted, the optical assembly is displaced relative to the frame in a plane perpendicular to an incident optical axis.

Abstract: An endoscope system includes an endoscope and a processor. The endoscope includes: an actuator including a coil configured to cause a movable lens and a magnet to move by application of a drive signal; a position sensor configured to output a position detection signal showing a position of the movable lens according to a magnetic flux of the magnet; and an endoscope memory storing correction information for correcting crosstalk onto the position detection signal by the magnetic flux of the coil. The processor includes a drive controller configured to correct the position detection signal based on the drive signal and the correction information and output the drive signal based on a target position and the corrected position detection signal, to the actuator.

Abstract: The present disclosure provides a lens module, including a lens barrel and a lens group. The lens group including at least one lens, and the lens barrel including an inside surface and an outside surface. The lens includes an optical portion and a bearing portion. The bearing portion includes an object side, an image side, a lateral surface and an inclined surface. The inside surface includes a first abutting surface, an extend surface and a second abutting surface, the lateral surface abutting against the first abutting surface, the lateral surface is provided with a protrusion extending from the lateral surface towards the second abutting surface. The protrusion is separated from the second abutting surface. The protrusion, the lateral surface, the extend surface and the second abutting surface form a first adhesive accommodation slot, and the inclined surface, the protrusion and the second abutting surface form a second adhesive accommodation slot.

Abstract: Disclosed is a three-dimensional adjustment mechanism for performing precise adjustment of an optical element in a high-resolution imaging system. The three-dimensional adjustment mechanism includes three elastic adjustment members uniformly distributed to conduct an axial displacement adjustment and a tilt adjustment of the optical element. The three elastic adjustment members are uniformly arranged at a bottom of the optical element, and configured to perform dynamic adjustment for the optical element with high precision on basis of deformations of the elastic adjustment members.

Abstract: Disclosed is a system and method for communication using an efficient fiber-to-chip grating coupler with a high coupling efficiency.

Abstract: Elevation turrets are used in rifles copes to adjust the point of aim of in the vertical direction. In tactical riflescopes used for precise shooting at long distance, the shooter often adjusts the elevation turret via very small movements or ‘clicks’. Each click indicates a fine adjustment step, often ½ MOA or ¼ MOA (Minute of Arc). At night or under stressful field conditions, it is difficult for the shooter to see the click markings or remember whether the turret has been turned once or twice. The present invention discloses an elevation turret that features a moving pin. The pin protrudes from the top of the turret if the turret is turned more than once. This can provide tactile feedback to the shooter and help him re-adjust his point of aim in the dark or when wearing gloves.

Abstract: The present disclosure relates to the technical field of optical lenses and discloses a lens module. The lens module includes: a lens; a lens barrel receiving the lens; a lens seat receiving the lens barrel; and a pressure-proof part having a receiving space. The lens barrel is installed into the lens seat from an object side of the lens seat to form an imaging body. The pressure-proof part includes a top wall forming a through hole and disposed at an object side of the lens barrel and a side wall extending from an edge of the top wall facing away from an optical axis while being bent towards an image side, the top wall and the side wall forming the receiving space. The receiving space receives at least a portion of the imaging body.

Abstract: The invention relates to a calibrating system for calibrating at least one distance-measuring device. In particular, the calibrating system is suitable for almost simultaneous calibration of a plurality of filling-level measuring devices. It is characterized in that a mirror arrangement is provided, by means of which a laser tracker can determine a least one distance to at least one reflector and at least one reference distance to the at least one distance-measuring device. The calibrating system according to the invention allows both the distance to the reflector and the reference distance to be determined by a single measuring device, without the at least one reflector having to be collapsible for this purpose or the calibration having to be interrupted. The calibrating system accordingly permits more precise calibration, the calibrating system further being operable with a high degree of automation.

Abstract: There is provided a lens device that prevents dust from entering a space in which a movable lens is moved. A movable lens is moved in the direction of an optical axis. A holding member, which extends in the direction of the optical axis, is formed at an end portion of the movable lens. A magnet is fixed to an end portion of the holding member. A hall IC is disposed in a closed storage space at a position facing the magnet. A signal, which corresponds to the position of the magnet in the direction of the optical axis, is output from the hall IC. Since the hall IC is disposed in the storage space closed by a storage box, the entry of dust, which is caused by the hall IC, into a space in which the movable lens is moved is prevented.

Abstract: An optical sight with a rectifier and device for indicating turns of the rectifier includes a longitudinal body that houses sight elements coupled to the rectifier. The rectifier includes a rotatable control element and an indicator protruding from an upper surface of the rectifier. The indicator includes a longitudinal identification protrusion rotatable about an axis that is perpendicular to its length and parallel to an axis of rotation of the control element. A coding device is associated with the longitudinal identification protrusion and is mounted on the upper surface of the rectifier above an upper surface of the longitudinal identification protrusion, wherein a rotated position of the longitudinal identification protrusion relative to the coding device provides an indication to a user of the optical sight of turning of the rectifier. A zero stop mechanism is configured with the control element of the rectifier.

Abstract: An optical assembly comprises a mounting structure, a plurality of optical elements, and a conformal filler material. The mounting structure has a plurality of axially spaced circumferentially recessed undercuts formed into an inner surface of the mounting structure. The optical elements are axially spaced in the mounting structure. At least one of the optical elements includes an undercut in a perimeter edge surface. The undercut is aligned with one of the plurality of undercuts in the mounting structure, such that the aligned circumferential undercuts define a void. The conformal filler material is cast in place in the void to create a mechanical lock between the optical element and mounting structure.

Abstract: A first optical axis of a first optical component is caused to be at a first angle with respect to a first precision surface of the first optical component. A second optical axis of a second optical component is aligned to be at a second angle to a second flat surface of the second optical component. The second angle is equal to or derived from the first angle. The first and second flat surfaces are caused to directly face each other to allow only sliding motion between the first and second flat surfaces. The sliding motion is performed between the first and second flat surfaces until the first and second optical axes are sufficiently collinear.

Abstract: A VCM is disclosed, the VCM including a rotor including a bobbin arranged at an upper surface of a base formed with an opening, and a driving coil wound on the bobbin, a stator including a driving magnet opposite to the driving coil, and a yoke secured by the driving magnet at an inner surface of a lateral plate, and a tilting unit including a tilt magnet arranged at an outer surface of the lateral plate, a housing fixing the tilt magnet, and a tilt coil unit opposite to the tilt magnet.

Abstract: A lens adjusting mechanism including a base, a first fastening component, a first bracket, a second fastening component, a second bracket, and a lens is provided. The first fastening component is movably connected to the base along a first straight direction. The first bracket is movably connected to the base along the first straight direction through the first fastening component. The second fastening component is connected to the first bracket. The second bracket is movably connected to the first bracket along a second straight direction through the second fastening component, wherein the first straight direction is different from the second straight direction. The lens is disposed on the second bracket.

Abstract: An optical assembly comprises a mounting structure, a plurality of optical elements, and a conformal filler material. The mounting structure has a plurality of axially spaced circumferentially recessed undercuts formed into an inner surface of the mounting structure. The optical elements are axially spaced in the mounting structure. At least one of the optical elements includes an undercut in a perimeter edge surface. The undercut is aligned with one of the plurality of undercuts in the mounting structure, such that the aligned circumferential undercuts define a void. The conformal filler material is cast in place in the void to create a mechanical lock between the optical element and mounting structure.

Abstract: Provided are an auto focus (AF) locking unit and a photo-graphing apparatus including the AF locking unit. In particular, the AF locking unit supports a lens group barrel holder that is descended by a movement of a front barrel in an optical axis direction by using a locking lever provided with an elastic force, and the photographing apparatus includes the AF locking unit. According to an embodiment, the AF locking unit supports the lens group barrel holder including lenses in the optical axis direction by using a driving force transmitted from a motor in correspondence to movements of a cam barrel and a front barrel, and the photographing apparatus includes the AF locking unit.

Abstract: A method for focusing a miniature camera includes providing a current through a coil, moving a lens of a camera based on the current to adjust a focus of the camera, and limiting movement of the lens along an optical path of the camera.

Abstract: An image module and an electronic device using the same are provided. The image module includes a connecting element and a lens structure. The connecting element includes an inner ring, an outer ring and a connecting portion. The connecting portion connects the inner ring and the outer ring. The lens structure is mounted in the inner ring.

Abstract: An image stabilization device includes a movable portion including an image pickup lens and a VCM driving portion configured to drive the movable portion relative to a fixed portion, the image stabilization device including: a position detection element arranged on the movable portion; and paired position detection magnets arranged at positions facing the position detection element and arranged on the fixed portion; wherein the paired position detection magnets are a first magnet and a second magnet arranged so that different magnetic poles face a surface of the position detection element; the first magnet and the second magnet are arranged in order along a direction away from an optical axis of a light flux incident on the image pickup lens; and magnitudes of densities of magnetic fluxes reaching the surface of the position detection element from the first magnet and the second magnet, respectively, are mutually different.

Abstract: Disclosed is a lens driving apparatus. The lens driving apparatus includes a base formed at a center thereof with a first opening; a housing coupled with the base and having a second opening corresponding to the first opening; a yoke installed on the base and including a horizontal plate having a third opening corresponding to the first opening and a vertical plate protruding upward from the horizontal plate; a bobbin movably installed in the yoke and coupled with a lens module; a coil fixedly disposed around the bobbin; a plurality of magnets provided at the vertical plate of the yoke to face the coil; and a spring installed on at least one of upper and lower portions of the yoke to return the bobbin, which has moved up due to interaction between the magnet and the coil, to its initial position.

Abstract: A monolithic optical mount having a bore for accommodating an optical element, the bore including: a first ridge located at a first position on the inside circumference of the bore; a second ridge located at a second position on the inside circumference of the bore; and a flexure extending from along the inside circumference of the bore to a point beyond a threaded hole which passes through from the outside circumference of the bore to the inside circumference of the bore; wherein the flexure is actuated by turning a screw in the threaded hole thereby adjusting an amount of force pushing against a point on the flexure by a tip of the screw.

Abstract: A camera device is proposed. The camera device includes a housing, a mounting barrel for mounting a camera lens, a supporting member, elastic members, a rotating ring, and a driving motor. The housing has a protrusive limiter disposed thereon. The mounting barrel has a ring-shaped flange disposed on an exterior peripheral face thereof. The central axes of the mounting barrel and the rotating ring forms an angle such that the mounting barrel is inclined with respect to the rotating ring. The plural elastic members being arranged around the ring-shaped flange. The driving motor is connected to the rotating ring in a transmission way for driving rotation of the rotating ring. The rotating ring has a protruding member disposed thereon and the protruding member is rotated along with the rotating ring. The protruding member is abutted on the ring-shaped flange.

Abstract: Mount assembly with a monolithic mount formed by a mount ring with a plurality of retaining arms with free ends and an element, which retaining arms are arranged concentrically around the axis of symmetry of the mount ring and extend at least partially in axial direction. Three of the retaining arms contact an end face formed at the element and hold the element axially, while the other retaining arms are bonded to a circumferential surface formed at the element and prevent the element in particular from rotating.

Abstract: Disclosed is a motor for driving lenses.

Abstract: A lens system includes a tube lens and a lens assembly, with the tube lens disposed between an optical sensor and the lens assembly. The lens assembly is disposed between the tube lens and an imaged object. In order to solve the problem of some lens systems having focal lengths that are shorter than the working distances of the lens systems, one aspect of the inventive subject matter described herein provides the lens assembly with a negative lens and plural positive lenses. A first positive lens is located between a second positive lens and an imaging plane, the second positive lens is located between the first positive lens and the negative lens, and the negative lens is located between the second positive lens and the tube lens.

Abstract: Aspects of the present disclosure include methods for optically aligning components of a light collection system. Methods according to certain embodiments include coupling a connector having a first lens to an optical adjustment component having a second lens by connecting a first magnet and first aligner positioned on the connector to a second magnet and second aligner positioned on the optical adjustment component such that connecting the first magnet and first aligner to the second magnet and second aligner is sufficient to position the connector lens to be optically concentric with the optical adjustment component lens. Light collection systems optically aligned by the subject methods including flow cell nozzles optically aligned with an optical adjustment component are also described. Systems and methods for measuring light emitted by a sample (e.g., in a flow stream) are also provided.

Abstract: A compact LIDAR pointing assembly can comprise a body, first and second ferrules, and a clip component that can be used to maintain an engagement between the first and second ferrules and an alignment of light emanating from the first and second ferrules relative to received light propagating along an optical axis of the assembly. The ferrules can be pivoted to adjust the orientation of the light emanating from the ferrules.

Abstract: A lens driving apparatus includes a lens holding member, a static member including a housing, a biasing member, and a moving mechanism. The biasing member includes upper and lower leaf springs. The upper leaf spring includes an upper first portion, an upper second portion, and an upper elastic arm portion. A through hole is formed in the upper first portion of the upper leaf spring. The lens holding member includes a fastening portion that includes a mount surface on which the upper leaf spring is placed, a recess facing the through hole, and a protrusion inserted into the through hole. An adhesive held in the recess surrounds the protrusion and part of the adhesive spreads to an upper surface of the upper first portion of the upper leaf spring through the through hole. The upper leaf spring is fixed to the lens holding member with the adhesive.

Abstract: A magnifying eye goggles assembly includes a frame including a first lateral wall, a second lateral, an upper wall and a lower wall. The frame has an interior surface bounding an interior space. The frame has a forward surface and a rearward surface. A plurality of lenses is mounted in the interior space. Each of the lenses completely extends across the interior space from the first lateral wall to the second lateral wall and from the upper wall to the lower wall. At least one of the lenses magnifies objects viewed through the frame and at least one of the lenses is movable rearward and forward relative to the frame to alter a focal point of magnification. A strap has a first end attached to the first lateral wall and a second end attached to the second lateral wall. The strap retains the frame on a person's head.

Abstract: An apparatus with a high power laser-mechanical bit for use with a laser drilling system and a method for advancing a borehole. The laser-mechanical bit has a beam path and mechanical removal devices that provide for the removal of laser-affected rock to advance a borehole.

Abstract: A microlithography projection objective includes an optical element, a manipulator configured to manipulate the optical element, and a control unit configured to control the manipulator. The control unit includes a first device configured to control movement of the manipulator, a memory comprising an upper bound for a range of movement of the manipulator, and a second device configured to generate a merit function based on a square of a root mean square (RMS) of at least one error and configured to minimize the merit function subordinate to the upper bound for the range of movement of the manipulator.