Abstract: This invention is directed towards ophthalmic lenses used to assist during vitreoretinal surgery. More specifically, it is directed towards ophthalmic lenses that are constructed to generate a high-resolution image of the retinal surface during surgery while maintaining a minimal mechanical envelop all while using materials and assembly methods compatible with autoclave sterilization techniques.

Abstract: Optical assemblies for use in medical or other devices so as to image an object under examination onto an image sensor include a plurality of lens elements that can be retained in lens barrel. The lens elements and the lens barrel can be sealed with a compressible gasket. In one example, at least one lens element is made of an injection-moldable plastic and at least one lens element is made of a relatively dispersive optical glass. A lens barrel diameter or lens diameter can be selected to permit access to the object under examination with surgical or other tools. Aperture plates can be situated so as to reduce flare in the object image.

Abstract: A lens module for being fixed to a substrate by UV glues includes a lens barrel and a lens holder integratedly formed at a bottom of the lens barrel. The lens barrel has a hollow receiving groove for receiving an optical lens therein. The lens holder defines a containing cavity communicating with the receiving groove and penetrating through a bottom thereof to form a plurality of inner walls surrounding the containing cavity. The lens holder further defines a plurality of outer pillars spaced from each other and arranged apart from outer peripheries of the corresponding inner walls to define gaps therebetween. The UV glues are distributed to a bottom of each outer pillar so that ultraviolet lights can pass through the intervals between the outer pillars to adequately irradiate and solidify the UV glues for making the lens module fixed to the substrate firmly.

Abstract: An imaging apparatus includes a lens unit to be mounted in one-touch on a module unit affixed by reflow soldering or the like to a base plate. When the lens unit is mounted in one-touch on the module unit, the conical outer circumferential surface of a tip-end part of a lens press-fitting part is in close contact with the inner circumferential surface of the conical concave part of the holder to regulate the coaxiality of the installed lens. A flange face of the lens is directly received and supported by the holder to regulate the parallelity with the imaging element and, in addition, when the lens unit is mounted in one-touch on the module unit, the barrel which is integrally formed with the lens press-fitting part is snap-locked onto the upper end part of the holder to ensure the fixing of the barrel.

Abstract: A projection lens unit includes a magnifying optical system is provided. A second magnifying lens barrel has a shape of double circular cylinders, and a first magnifying lens barrel is fitted to an outer circular cylinder. Further, a second magnifying lens is in contact with and fixed to a step portion of inner circular cylinder. In a manufacturing step thereof, the second magnifying lens is inserted into the inner circular cylinder of the second magnifying lens barrel to be into contact with the step portion. A front end portion of the inner circular cylinder is plastically deformed by being heated and pressed to fix the second magnifying lens. An outer peripheral edge of the front end portion has a curved surface. The curved surface of the front end portion is made to be smaller in radius of curvature than the second magnifying lens.

Abstract: A plastic optical element is provided, which includes an optical element body having a transfer surface which includes at least one laser beam incident portion of a concave shape, and a support portion connected with the optical element body, in which the support portion is disposed in a direction of a tangent line at an end of the transfer surface, and the optical element body and a part of the support portion are molded in the same nest structure.

Abstract: A lock mechanism for a sliding object includes a slide arm, a rotating lever, and urging means. When an external pressing force presses the slide arm member in opposition to an urging force imparted by the urging means, the slide arm member is moved along a slide path, thereby causing the rotating lever member to rotate. When the slide arm member is pressed further, the tip of the rotating lever member rides onto and is stopped against the lateral surface of the slide arm member, such that the slide arm member and the rotating lever member remain stopped at the current position even if the pressing force is released.

Abstract: A clutching jig used to disassemble a lens module which includes a lens socket and a lens component mounted to the lens socket by a plurality of buckling pieces of the lens socket abutting a top and a side of the lens component defines a housing having a base. The base has an inserting hole. A bottom of the base has a holding wall for pressing the buckling pieces apart from the lens component. A top of the base has a pair of connecting walls. Two clutching arms are rotatably mounted to the housing. Each of the clutching arms has a fixing plate. An end of a top side of the fixing plate has a holding bar. An end of a bottom side of the fixing plate defines a clutching slice for holding the lens component when the holding bars are urged to approach each other, in disassembly.

Abstract: A projection device, having an optical engine device and an adjusting device is provided. The optical engine device has an optical engine and a fixing device coupled to the optical engine. A first thread hole is formed in the optical engine along a Z-axis direction. An image is projected parallel to the Z-axis. The adjusting device further has an adjusting frame in which a second thread hole is formed along the Z-axis direction and an adjusting bolt screws through the second thread hole and the first thread hole. The operation of the adjusting bolt, the fixing device as well as the optical engine is moved relatively to the adjusting frame along the Z-axis. Thereby, the optical engine has a built-in adjustment mechanism to ensure the focal length maintained as the design value after assembly, such that the image quality of the projection device is enhanced.

Abstract: An interchangeable lens barrel and a program rewriting system, in which a program included in the interchangeable lens barrel is easily changeable, are provided. An interchangeable lens barrel 2 is detachable from a camera body 1, and includes a storage section 36 for storing a first program concerning a function of the interchangeable lens barrel 2, a connection section 38 for connecting to an external input/output device 60, a reception section 32 for receiving a second program concerning the function of the interchangeable lens barrel from the input/output device 60 through the connection section 38, and a rewriting section 37 for replacing the stored first program with the received second program.

Abstract: A microlens, an image sensor including the microlens, a method of forming the microlens and a method of manufacturing the image sensor are provided. The microlens includes a polysilicon pattern, having a cylindrical shape, formed on a substrate, and a round-type shell portion enclosing the polysilicon pattern. The microlens may further include a filler material filling an interior of the shell portion, or a second shell portion covering the first shell portion. The method of forming a microlens includes forming a silicon pattern on a semiconductor substrate having a lower structure, forming a capping film on the semiconductor substrate over the silicon pattern, annealing the silicon pattern and the capping film altering the silicon pattern to a polysilicon pattern having a cylindrical shape and the capping film to a shell portion for a round-type microlens, and filling an interior of the shell portion with a lens material through an opening between the semiconductor substrate and an edge of the shell portion.

Abstract: An anti-EMI lens module used in a bill acceptor is disclosed to include a circuit board, which has a plurality of electric recognition devices and a grounding device surrounding the electric recognition devices, a holder base mounted on the circuit board and holding a lens device and having a plurality of through holes respectively aimed at the electric recognition devices and a metal conducting layer disposed in contact with the grounding device of the circuit board and forming with the grounding device a grounding loop for absorbing and discharging static electricity during operation of the bill acceptor to protect the electric recognition devices against static electricity, radiowave and electromagnetic interference.

Abstract: A lens barrel assembly and a camera including the lens barrel assembly are provided. The lens barrel assembly includes a barrel case accommodating at least one optical lens, and a flexible printed circuit board (FPCB) configured to transmit signals between an area inside of the barrel case and an area outside of the barrel case. The barrel case comprises an outlet slit formed in the barrel case. The outlet slip being configured for extending the flexible printed circuit board to the area outside of the barrel case. Accordingly, the lens barrel assembly has an improved extension structure for extending the flexible printed circuit board which is configured to transmit signals between the inside and the outside of the lens barrel assembly.

Abstract: An LED lamp includes a printed circuit board, a plurality of LED modules mounted on the printed circuit board, and a lens mounted on the printed circuit board and covering the LED modules. The lens includes a bottom surface enclosing the LED modules therein and a top surface located above the bottom surface. Light emitted from the LED modules travels through the bottom surface and the top surface of the lens to illuminate the environment. The bottom surface of the lens is concave and the top surface of the lens is bulgy. Curvatures of constituting portions of the bottom surface are larger than those of corresponding portions constituting the top surface.

Abstract: The invention provides an imaging module disposed on a projection system. The imaging module comprises an extended lens device, which connects to the image outlet of the body of the projection system by a rotation mechanism. By rotating the rotation mechanism, the projection system may optionally project images through the extending lens device onto the screen in two perpendicular directions, of which the image ratio of the two images are reciprocal.

Abstract: An optical barrel (1) enclosing rod lenses (2) of a rigid endoscope optics, the rod lenses being contacted by the barrel in zones wherein an inwardly deforming, blade (4, 4?) cut free by two associated cutouts (5, 5?) in the barrel (1) is designed at each zone to make contact with rod lens (2).

Abstract: An improved lens barrel and related methods are provided. For example, in accordance with an embodiment of the present invention, a lens barrel includes a housing comprising a first section having a first diameter and a second section having a second diameter. A first lens element having a diameter approximately equal to the first diameter of the first section is enclosed by the first section of the housing. A second lens element is provided having a diameter approximately equal to the second diameter of the second section.

Abstract: A camera socket (100) includes a base (10) and a film (12). The base defines a receiving cavity (14) for receiving a camera module therein. The base has a transparent section (106) aligned with lenses of the camera module. The film is formed on a surface of the base. A portion (120) of the film formed on the transparent section of the base is transparent, the other portion of the film is coated with a metal coating (122). The metal coating is opaque, and the metal coating can be made of aluminum, copper, nickel, and stainless steel. The base is made of transparent plastic such as polycarbonate or polymethyl methacrylate. The present invention also provides a method for making the housing.

Abstract: A lens module includes: a base unit, a first lens unit, a spacer unit, a second lens unit and a cap unit. The base unit has a first through hole having a first tapered portion. The first lens unit has a first peripheral portion having second and third tapered portions. The second and third tapered portions taper in opposite directions. The second tapered portion is engaged in the first tapered portion of the first through hole of the base unit. The spacer unit has a second through hole having fourth and fifth tapered portions. The fourth and fifth tapered portions taper in opposite directions. The fourth tapered portion is engaged in the third tapered portion. The second lens unit has a second peripheral portion having a sixth tapered portion. The sixth tapered portion is engaged in the fifth tapered portion of the second through hole of the spacer unit.

Abstract: A protective shell for an electronic device is adapted to accommodate the electronic device. The electronic device includes a camera lens. The protective shell includes a shell body and a lens device. The shell body is adapted to accommodate the electronic device. The lens device is mounted on the shell body, and includes a plurality of lenses. The lens device is operable to move relative to the shell body such that a selected one of the lenses correspondingly overlaps one side of the camera lens of the electronic device to permit switching among different modes of use, thereby enabling the camera lens to have different functions, such as close-up, filtering, wide-angle, and polarizing functions.

Abstract: A camera module is composed from a lens unit including at least one lens, a barrel provided with the lens and having a barrel opening, and a lens holder for holding the barrel; and an image pickup device portion provided under the lens unit and having an image pickup device housing space in which an image pickup device is hermetically provided. The barrel opening of the barrel has an annular edge which serves as a diaphragm, and the annular edge of the barrel opening has a lower annular corner portion which is located on the side of the lens, wherein the lower annular corner portion of the annular edge is formed so as to have a rounded cross-sectional shape and staining is formed on the lower annular corner portion.

Abstract: An autoclavable diagnostic ophthalmic lens system includes a biconvex lens element having front and rear surfaces and a housing in which the biconvex lens element is mounted. The biconvex lens element is fabricated from a glass having an index-of-refraction greater of 1.7 or greater. The glass composition meets the following parameters: (% SiO2 (by weight)+% B2O3) is less than 50%; % of alkali metal compounds+% of alkaline earth metal compounds is less than 10%; and (% SiO2+% B2O3)/(% rare earth compounds) is less than 1.

Abstract: The present application disclosed various embodiments of kinematic optical mounts which include a first body member having at least one hinge extension defining at least one hinge passage extending therefrom and a mount surface configured to receive at least one optical component thereon, one or more positioning registers formed on the hinge extension, a second body member having a hinge recess sized to receive the hinge extension therein and at least one coupling body, one or more positioning elements in communication with the second body member and configured to be force biased to engage the positioning registers, and at least one biasing member configured to apply a constant biasing force to one or more hinge bearing members, thereby forcing the bearing members engage at least one bearing engaging member in communication with the second body member thereby coupling the first body member to the second body member.

Abstract: An objective lens comprises a housing, an iris diaphragm and a plurality of lens groups. For focusing the objective lens while minimizing the variation of the image angle at least two lens groups are adapted to be moved relative to the housing. The one lens group is arranged in front of the iris diaphragm. The other lens group is arranged at least partially behind the iris diaphragm.

Abstract: The present invention relates to an apparatus for locating objects (such as exploded or unexploded ordnance). The embodiments take advantage of spectroscopic features of an object's paint or surface finish to discriminate between the object and the background area. The apparatus utilizes an optical sensor, filters and the application of pixel to pixel ratios to detect the paint on an object from a distance so that objects such as unexploded ordnance may be safely destroyed or neutralized.

Abstract: A lens device is provided and includes: a lens barrel body in a box form opened in an upper surface thereof; a lid member attached to the upper surface of the lens barrel body; three fixing units that fix the lid member and the lens barrel body; and at least one engaging unit that engages the lid member with the lens barrel body so as to prevent the lid member from separating from the lens barrel body.

Abstract: A magnifying assembly comprising a housing; a magnifying lens coupled to the housing; and a cover slidable along the housing; wherein the cover is slidable relative to the housing in a first direction so as to cover at least part of the magnifying lens and slidable relative to the housing in a second direction so as to expose the magnifying lens. Preferably, the housing comprises a frame within which the magnifying lens is secured, and a battery compartment; wherein the frame and battery compartment are integrally formed.

Abstract: A magnifying assembly, the magnifying assembly comprising a housing comprising a frame to which a magnifying lens is secured; and a battery compartment; a cover assembly slidable along the housing; wherein the cover is slidable relative to the housing in a first direction so as to cover at least part of the magnifying lens and slidable relative to the housing in a second direction so as to expose the magnifying lens; and wherein the distance between the battery compartment relative to the magnifying lens remains the same regardless of whether the cover slides relative to the housing in the first direction so as to cover at least part of the magnifying lens or slides relative to the housing in the second direction so as to expose the magnifying lens.

Abstract: An optical element unit is provided comprising an optical element group; a housing receiving said optical element group and having an inner housing part and an exit end; and a purge unit connected to said housing and providing a purge medium to said inner housing part. The optical element group comprises an ultimate optical element. The ultimate optical element is located at the exit end of housing and separates the inner housing part from an environment external to the housing. The ultimate optical element and the housing define a sealing gap. The purge unit provides purge medium to the sealing gap to prevent intrusion of contaminants into the inner housing part.

Abstract: A lens alignment apparatus includes a main lens holding frame having a main lens secured thereto; an adjusting lens holding frame to which an adjusting lens to be aligned with the main lens is secured; at least one radial groove formed in one of adjacent end surfaces of the main lens holding frame and the adjusting lens holding frame; a centering hole, corresponding to the radial groove, formed in the other of the adjacent end surfaces of the main lens holding frame and the adjusting lens holding frame; and an alignment member including a centering pillar portion inserted in the centering hole and an aligning portion engaged in the radial groove, the aligning portion being provided with a plurality of pairs of parallel alignment surfaces having an identical width and different distances from the axis of the centering pillar portion.

Abstract: A projection apparatus including an optical engine, a ring, a lens and multiple casings is provided. The optical engine is suitable for producing an image light beam to project an image onto a screen. The ring is fixed on the optical engine. The lens is disposed outside the optical engine and located at a transmission path of the image light beam. The casings are assembled to the ring and connected to each other to form a lens barrel for fixing the lens, and the lens is driven to move relative to the optical engine and the ring by the lens barrel. The projection apparatus has a smaller overall dimension.

Abstract: An objective lens holder of the present invention includes: (i) a cavity, having an entrance and an exit, which guides, to an objective lens, an incident light beam entering the entrance, the exit being provided on a side of the cavity where the objective lens is housed; and (ii) an aperture having an opening for limiting, to an effective diameter of the objective lens, a beam diameter of the incident light beam passing through the cavity. The cavity is surrounded with internal wall surfaces facing each other so that space between the internal wall surfaces gradually increases from the opening of the aperture toward the entrance or the exit. This makes it possible to provide a highly rigid objective lens holder that allows high speed read/write operations.

Abstract: There is provided an optical component. An optical component according to an aspect of the invention includes a lens holder including a first electrode, an insulating structure formed on the first electrode and having a through hole provided as an optical path, and at least one second electrode formed inside the insulating structure to encompass the through hole, and at least one microlens located in the through hole and formed of transparent resin.

Abstract: Optical devices which accurately position optical elements and methods for producing such optical devices. Each optical element is carried by a support on an axis that has portions plastically deformed to overlap portions of the faces of the optical element adjacent an intermediate peripheral surface. This configuration locks the optical element axially in the support and produces a positive rigid retaining structure for each optical element.

Abstract: An optical module (100) includes a lens barrel (10), a lens module (20), a filter (40) and a clip (50). The lens barrel defines a groove in an inner periphery thereof. The lens module is received in the lens barrel. The clip is received in the groove of the lens barrel, so as to fix the lens module in the lens barrel. The filter is received in the lens barrel, between the lens module and the clip.

Abstract: A transceiver module for optical communications is provided in which the leadframe assembly includes at least first and second die attach regions to which the laser diode driver IC and the laser diode IC are secured, respectively. A slot formed in the leadframe between the first and second die attach regions provides an air gap that at least partially thermally isolates the laser diode IC from the laser diode driver IC. This air gap results prevents heat generated by the laser diode driver IC from appreciably affecting the temperature of the laser diode IC, and thus from detrimentally affecting the performance of the laser diode IC. This slot also allows contact pads of the laser diode IC to be directly connected by leads to contact pads of the laser diode driver IC, which reduces the lengths of the leads and thus their inductances, which prevents EMI problems from occurring.

Abstract: An image pickup apparatus includes a housing, a lens incorporated in the front of the housing and configured to constitute an imaging optical system, an image pickup device provided in the housing and configured to capture a subject image guided by the imaging optical system, a printed wiring board provided in the housing and having the image pickup device mounted thereon, a barrel provided integrally with the front of the housing, an annular lens cover configured to push a face of the lens facing forward in a rearward direction, and detachably mounted on the front of the barrel, and a support wall projecting rearward outside a rear end of the barrel in the radial direction and inside the housing, and bonded to the printed wiring board with adhesive.

Abstract: An optical device according to an embodiment of the present invention is an optical device including a lens structure in which a lens portion is injection molded integrally with a skirt portion extending from the edge of the lens portion, and a housing that supports this lens structure. The skirt portion has a molding gate receiving portion corresponding to a molding gate for injection molding, and the thickness of the edge<the thickness of the molding gate receiving portion<the thickness of the lens portion is satisfied.

Abstract: An optical module (100) includes a lens barrel (10), a lens (201), and a clip (50). The lens barrel has a groove (104) defined in an inner periphery thereof. The lens is engagingly received in the lens barrel. The clip is received in the groove of lens barrel to fix the lens in the lens barrel.

Abstract: A lens is fitted into a metal ring that covers the outer peripheral surface of the lens and can be soldered to a fixture member. The side cylindrical part of the metal ring is expanded toward the outer peripheral direction thereof by the pressure of the optical material put inside it, and, thus expanded, it defines the final dimension of the metal ring. One of the two openings formed on both sides of the side cylindrical part of the metal ring is so designed as to have a curving cylindrical part that extends from the side cylindrical part, and this curving cylindrical part is folded toward the optical functional face of the optical device to construct a metal ring-fitted optical device.

Abstract: A magnification apparatus having a magnifier and mechanical structure that is configured for securing the magnifier intermediately between a universally positionable mounting apparatus and a bracket of a type configured for holding an electronic device using fasteners that couple the bracket with the mounting apparatus, without compromising the security of the connection therebetween.

Abstract: A lens module includes a lens seat, an image sensor unit, a lens set, a circuit board, and a resilient interposer. The lens seat includes a top wall that is formed with a barrel hole, a side wall that extends from a periphery of the top wall and that cooperates with the top wall to define a chamber, and a lens barrel. The lens barrel has a first barrel portion disposed in the chamber and a second barrel portion extending from the first barrel portion and passing through the barrel hole in the top wall. The image sensor unit and the lens set are disposed in the first and second barrel portions of the lens barrel, respectively. The circuit board is disposed to cover an open side of the lens seat, and is connected electrically to the image sensor unit via the resilient interposer.

Abstract: A holder and optical element device includes a holder having a substantially cylindrical interior shape and an optical element fitted in the holder along an inner surface of the holder. The holder may have a step on the inner surface thereof. This step has a surface that is inclined downward and inward from the interior surface of the holder. The optical element may have a convex optical surface section on a surface thereof and a flat surface section around the optical surface section, the flat surface section being disposed on the downward-inclined surface. The optical element is disposed on the inner surface of the holder in such a manner that the step is in contact with the peripheral surface of the optical element.

Abstract: Provided are a lens and a lens unit, whereby even in the case of a small-diameter lens, manufacturing can easily be performed, and a sufficient strength of adhesion to a lens holder can be obtained. The lens includes an effective portion; a peripheral edge portion provided around a periphery of the effective portion, wherein at least one of a front and a rear faces is a planar face intersecting an axial direction; and a rib portion that is provided around a periphery of the peripheral edge portion, that has a front and a rear faces wherein one of the front and the rear faces is a planar face intersecting the axial direction, and that has a thickness reduced to be thinner toward an outer side. The lens unit of the present invention is configured such that the lens is arranged at an end of a lens system, and the lens system is together assembled into a lens holder.

Abstract: A holder/optical-element assembly includes a holder and an optical element disposed within the holder. The holder has an inner periphery surface in which at least one opening is provided, and the optical element is formed with at least one protrusion extending outward from an outer periphery of the optical element. The protrusion of the optical element is engaged with the opening of the holder.

Abstract: A thin magnifier structure with magnetic protective jacket, including a transparent magnifying member, a magnetic jacket and a pivot member. The transparent magnifying member integrally has a magnifier and is movably clipped and hidden in the magnetic jacket. The transparent magnifying member and the magnetic jacket are pivotally connected with each other via the pivot member, whereby the transparent magnifying member can be pivoted about the pivot member out of or into the magnetic jacket. When not used, the transparent magnifying member is clipped and hidden in the magnetic jacket, whereby the magnifier is protected from being scraped by any alien article. In use, the transparent magnifying member is pivoted about the pivot member out of the magnetic jacket. At this time, a user can hold the magnetic jacket with a hand to see an object through the magnifier without contaminating the magnifier. The thin magnifier structure is also usable as a bookmark.

Abstract: A lens holder apparatus of a camera lens module is provided and includes a printed circuit board, an image sensor provided on a printed circuit board, a plurality of lenses, and a spacer The lenses are assembled within the lens holder allow focal lengths between the sensor and respective lenses to be adjusted freely, and a stopper is detachably provided at a lower portion of the space of the lens holder, such that the stopper can be separated from the lower portion and then recombined therewith after the readjustment of the focal length.

Abstract: A projection lens (46) comprises: a cylindrical exterior case (621) having a lens-shifting through-hole (625) on a side thereof and an inner circumferential step or inner flange (623); a lens (610) of which outer periphery (611) on a first side is abutted to the inner circumferential step or inner flange (623); a flexible or elastic spacer (660) abutted to an outer periphery (612) of a second side of the lens (610); and a retainer (670) holding the spacer (660), where the lens (610) is fixed on the exterior case (621).

Abstract: The invention relates to an optical device for focusing a laser beam, comprising a source of emission of a laser beam, for example a substantially elliptic and astigmatic laser beam, a focusing lens of the laser beam and first aperture adapted to select a central portion of the laser beam. The first aperture is directly applied on the focusing lens, and comprises a coating made of a substantially opaque material which are applied (for example, by spraying, sputtering, evaporation, printing, painting) on a peripheral portion of a front surface of the focusing lens so as to allow the propagation of the central portion of the laser beam and obstruct the propagation of a surrounding portion of beam. The device of the invention is extremely simple from the constructive point of view, and is inexpensive and small-sized.

Abstract: In a preferred embodiment, a magnifier for a menu or the like, including: the magnifier and the menu or the like; and the magnifier being disposed in a pocket associated with the menu or the like. A pair of glasses that has both upper and lower lenses of different strengths is also provided.