Abstract: A lens module socket for receiving a lens module having a base portion includes an insulating housing, a plurality of conductive terminals received in the insulating housing, a shielding shell encircling the insulating housing, and a plurality of rotatable latches pivotally assembled to the insulating housing by a plurality of shaft pins. The insulating housing has a bottom base and side walls extended upwardly from the bottom base to surround a receiving chamber therebetween for receiving the lens module. The insulating housing defines a plurality of slits at the side walls for receiving the rotatable latches and a plurality of insertion holes extended downwardly from top portions of the side walls for receiving the shaft pins. The rotatable latches have press portions passing through the slits into the receiving chamber for pressing against the base portion of the lens module when the rotatable latches are rotated to a closed state.

Abstract: A projection type image display apparatus comprising a light source, an optical integrator, by which light outgoing from the light source is changed in distribution of illumination, a color separation optical system, by which light outgoing from the optical integrator is separated into a plurality of light beams, and a relay optical system including a plurality of relay lenses, by which light beams separated by the color separation optical system are relayed, and a reflection mirror. The relay optical system includes a device that adjusts angles of inclination of at least one of the relay lenses with respect to an optical axis of illumination of light outgoing from the light source.

Abstract: A lens apparatus that is switchable between a first and a second modes, including: a control master determination unit for determining the lens apparatus as one of a master and a slave for each target to be controlled of the lens apparatus when the lens apparatus is operated in the second mode; and a command value transmit-receive unit for transmitting/receiving a command value of the target of the lens apparatus to/from the another lens apparatus when the lens apparatus is operated in the second mode, in which the lens apparatus drives the target according to a command value from a controller for the lens apparatus for the target for which the lens apparatus is set as the master, and drives the target according to a command value received through the command value transmit-receive unit for the target for which the lens apparatus is set as the slave.

Abstract: A lens drive device may include a support body, a movable body having a lens, a magnetic drive mechanism having a coil mounted on the movable body and a magnet mounted on the support body for magnetically driving the movable body in a lens optical axis direction, two spring pieces which are connected between the movable body and the support body for supporting the movable body and which is used as a power supply member to the coil, and two binding pins which are provided in the movable body and around which coil ends of winding start and winding end of the coil are wound. Portions of the coil ends which are wound around the binding pins are electrically connected with the spring pieces.

Abstract: The disclosure provides a positioning unit for an optical element in a microlithographic projection exposure installation having a first connecting area for connection to the optical element, and having a second connecting area for connection to an object in the vicinity of the optical element.

Abstract: Disclosed herein is a lens barrel including: a plurality of lenses arranged in a state of being separated from each other in a direction of an optical axis; and a lens retaining body for retaining the lenses; wherein a print pattern that has a light shielding function and is partly in contact with the lens retaining body to adjust an interval between the lenses in the direction of the optical axis is formed on at least one of the plurality of lenses.

Abstract: A lens driving device for use with a lens to photograph or image an object to be photographed or imaged may include a moving member holding the lens and made movable in the direction of an optical axis, and a supporting member for supporting the moving member through a spring member, wherein the lens is displaced and driven in the optical axis direction thereby to focus the image of the object. The supporting member may include a yoke having a cover portion having an entrance window for introducing the reflected light from the object into the lens, and a case portion for covering the outer circumference of the moving member. The cover portion and the case portion are formed integrally with each other.

Abstract: A lens includes a central optically active part, and a peripheral optically inactive part surrounding the optically active part. The optically inactive part includes a first surface, an opposite second surface, and a side surface connected between the first surface and the second surface. The side surface includes a first support area, a glue guide area, and a second support area in the order written. The glue guide area has a first groove defined therein. The first groove extends from a first side of the glue guide area adjacent to the first support area to an opposite second side of the glue guide area next to the second support area.

Abstract: Adjustable mounts for optical elements or the like that may include absolute position information feedback. For some embodiments, position data may be generated independent of displacement measurement. Position data feedback may be provided to driver embodiments, such as piezoelectric inertia drivers, by a controller and used to achieve a desired position setting for an adjustable mount.

Abstract: A solid immersion lens holder 200 includes a holder main body 8 having a lens holding unit 60 that holds a solid immersion lens 6, and an objective lens socket 9 for attaching the holder main body 8 to a front end of an objective lens 21. The solid immersion lens 6 is held in a state of being unfixed to be free with respect to the lens holding unit 60. A vibration generator unit 120 that causes the holder main body 8 to vibrate is attached to the objective lens socket 9. The vibration generator unit 120 has a vibrating motor 140 held by a motor holding member 130, and a weight 142 structured to be eccentric by weight is attached to an output shaft 141 of the vibrating motor 140. A vibration generated in the vibration generator unit 120 is transmitted to the solid immersion lens 6 via the objective lens socket 9 and the holder main body 8. Thereby, achieving the solid immersion lens holder capable of improving the close contact between the solid immersion lens and an observation object.

Abstract: The present invention pertains generally to a combination of optical elements integrated into a singular unit to perform one or more functional operations upon an electromagnetic radiation emission conveyed through said unit, and more particularly, a plurality of optical elements that are durably integrated into a modular optical package, wherein said modular optical package is adaptive to a releasable mounting mechanism and has the capability to maintain an independently controlled microenvironment. An electromagnetic radiation emission in introduced into the modular optical package through at least one ingress portal and upon modification by the internal optical elements, exits the modular optical package through at least one egress portal. A microenvironment is maintained within the enclosure of the modular optical package such that humidity, temperature, atmospheric composition, particulates, and out-gassing contaminants are controlled.

Abstract: An electronic device includes a housing, a PCB, a LED mounted to the PCB, and a support member. The housing defines a cavity, and a through hole communicating with the cavity. The PCB is received in the cavity. The LED includes a lens received in the through hole. The support member, which is fixed to the housing to provide support for the lens, includes an elastic latch arm extending close to the through hole to form an angle with a surface of the lens. An end of the elastic latch arm contacts the surface of the lens to prevent the lens from being detached from the through hole.

Abstract: A diagonal mirror having a display includes a minor holder and a display detector. The mirror holder has a main body, an ocular part connected to the main body in tilt way, and a telescope tube connector connected to the main body in a way that is tilt relative to the main body and diagonal to the lens holder. One side of the main body has a hole. The display detector inlayed in the hole on the side of the mirror holder is used to detect and show the surrounding area conditions. Users could directly get information of outdoor surrounding area from the display detector. With the information of outdoor surrounding area, users could precisely adjust the focusing system of the telescope and have a clear magnified visual image of the astronomy landscape.

Abstract: A telescopic lens barrel which is capable of increasing the assembling workability and advancing and retracting a lens in an optical axis direction of the lens barrel with high accuracy, without miniaturizing of the lens barrel. A barrel base plate holds an image pickup device. A fixed cylinder is secured to the barrel base plate and has an axis in an optical axis direction of the lens barrel. A guide shaft holds a lens frame so as to be advanced and retracted in the optical axis direction in the fixed cylinder and held by the barrel base plate. The barrel base plate includes bearing portions holding the guide shaft on opposite sides of a sliding region of the lens frame, and a protruding portion of the guide shaft protruding from one of the bearing portions of the barrel base plate is regulated in position by the fixed cylinder.

Abstract: An optical element mount has an inner member suspended within an outer member by a number of flexures. A first translational actuator is movable within the outer member and coupled to the inner member by a first shaft and is actuable to translate the inner member along a first substantially linear travel path within a translation plane that is orthogonal to an optical axis. A second translational actuator is movable within the outer member and coupled to the inner member by a second shaft and is actuable to translate the inner member along a second substantially linear travel path within the translation plane. A rotational actuator is movable within the outer member and coupled to the inner member by a third shaft and actuable to rotate the inner member about an instant point of rotation that is defined at the intersection of the first and second linear travel paths.

Abstract: A system for aligning a plurality of high-precision lenses in a lens train. Each of the lenses has at least two alignment tabs disposed around the perimeter of the lens. The lenses are aligned by placing the lenses in a jig having a plurality of high-precision alignment blocks. The lenses are attached to a lower-precision shroud, having slots that receive the alignment tabs. A gap-filling adhesive is used to provide a high-precision fit for the lenses in the shroud.

Abstract: A lens array unit mounting structure mounts a lens array unit in a recess provided in a housing of an image reading device. The structure includes a right projection and a left projection provided on the lens array unit and includes a right groove and a left groove provided in the recess of the housing. The lens array unit is secured in the recess of the housing by engaging the right projection with the right groove and engaging the left projection with the left groove.

Abstract: A changer includes an axis of rotation for at least one optical element for at least one optical path comprising an optical axis. The changer inserts the optical element into the optical path by a rotary motion or removes it from the optical path. The optical path is one of at least two spatially connected optical paths and the axis of rotation of the changer is located between two parallel lines. The parallel lines run in a plane through the interfaces of the optical axes of the optical paths with one plane, which intersects the optical axes under the same angles and is perpendicular to the plane, which is spanned by the optical axes. The parallel lines are perpendicular to the connecting line between the two interfaces of the optical axes of the optical paths with the one plane, which intersects the optical axes under the same angles.

Abstract: Provided is a lens unit (3) wherein a plurality of wafer lenses (10, 20) are layered and covered by cover package (30). In each of wafer lenses (10, 20), resin molded sections (14, 16, 24, 26) are formed on a glass substrate (12, 22), and a lens section (14a, 16a, 24a, 26a) is formed on a part of the resin molded section (14, 16, 24, 26). A sloped section (14e) formed around the lens section (14a) arranged closest to the object side in the lens unit (3) and an end section (32a) forming an opening section of the cover package (30) are fitted with each other.

Abstract: A solid immersion lens optics assembly, a test station for probing and testing of integrated circuits on a semiconductor wafer, and a method of landing a SIL on an object. The optics assembly comprises an objective lens housing for receiving an objective lens, and a solid immersion lens (SIL) housing for mounting an SIL and adapted for connection to the objective lens housing; wherein a peripheral wall of the SIL housing comprises an integrated spring section adapted to provide a biased support for the SIL.

Abstract: A focus adjustment device for adjusting a focus state of a projection lens unit in an image projection apparatus is provided. The focus adjustment device includes a focus adjustment member rectilinearly movable in a first direction; a rotational shaft; a first movement-converting member for converting a rectilinear movement of the focus adjustment member into a rotary movement of the rotational shaft; and a second movement-converting member for converting the rotary movement of the rotational shaft into in a rectilinear movement of the projection lens unit along a focusing direction.

Abstract: Disclosed are a projection display apparatus and a projection optics provided in the projection display apparatus. The projection optics has a refractive optics and a reflective optics. In the refractive optics, a lens (non-circular lens) provided on a reflective optics side has a non-circular shape forming part of an imaginary circular region whose center is an optical axis center of the refractive optics. In other words, the non-circular lens has a shape of a cut-out portion of an imaginary circular lens having an optical axis center coinciding with the optical axis center of the refractive optics.

Abstract: A control method is provided for controlling a heating of a thermal optical element, the thermal optical element having a matrix of heater elements. The method includes stabilizing a nominal temperature of the thermal optical element with a feedback loop to control the heating of heater elements; providing a desired temperature profile of the thermal optical element by a set point signal; determining a feedforward control of the heater elements from the set point signal; and forwardly feeding an output of the feedforward control into the feedback loop.

Abstract: A collapsible lens barrel is provided, including a mechanism capable of reliably inhibiting rotation of a rotational barrel even if any impact is applied thereto, for example, due to a fall with the barrel being extended. When the rotational barrel is pressed upon a fixed member due to impact in defiance of the biasing force of a wave spring, a first engagement portion provided at a camera body-side end of the rotational barrel engages with second engagement portions provided on a subject-side surface of the fixed member, which locks rotation of the rotational barrel, thereby making it possible to prevent gears from being damaged, for example.

Abstract: A lens module includes a seat, a lens holder and a thermal dissipation structure. The seat includes a base plate and two sidewalls perpendicularly formed on a surface of the base plate. The lens holder is mounted on the seat between the two sidewalls. The thermal dissipation structure is mounted on the seat and thermally conducts with the lens holder for cooling the lens holder.

Abstract: An optical element of the present invention is provide with a first surface which is formed on the front-object side and upon which light from the front-object side is incident, a second surface formed on the image side, and a third surface which is formed between the first surface and the second surface and upon which light from the generally lateral object side is incident. The first surface is provided with a first transmission surface formed around the optical axis and a first reflection surface which faces the image side and which is formed annularly around the first transmission surface. The second surface is provided with a second transmission surface formed around the optical axis, and a second reflection surface which faces the front object side and which is formed annularly around the second transmission surface.

Abstract: A voice coil motor for moving a correction lens comprising a magnet unit comprising a pair of yokes and at least one permanent magnet for defining a magnetic gap, and a coil disposed in the magnetic gap, to cause the relative linear movement of the magnet unit and the coil by current supplied to the coil; the permanent magnet having different magnetic poles adjacent to each other along the movement direction on a surface opposing the magnetic gap; the width of the permanent magnet in the movement direction being two times the width Wm of the magnetic poles; the width Wa of the coil in the movement direction being smaller than the width 2Wm of the permanent magnet; and the effective conductor width Wb of the coil, the magnetic pole width Wm of the permanent magnet and the longest movement distance St of the correction lens meeting the conditions of Wm=(Wb+St)×K, wherein K is a constant meeting 1<K?1.5.

Abstract: An optical element unit is provided comprising an optical element group for projecting light along an optical axis of the optical element group and a housing having an inner housing part partly defining a first space and a light passageway between the inner housing part and a second space. The inner housing part receives the optical element group. The optical element group comprises an ultimate optical element located in the region of the light passageway. A load-relieving device is provided adjacent to the ultimate optical element, the load relieving device partly defining the first space and the second space and at least partly relieving the ultimate optical element from loads resulting from pressure differences between the first space.

Abstract: A device for an optical arrangement includes an optical element and a holding structure. The optical element makes contact with the holding structure at six discrete contact points. Coupling elements are provided, by which it is possible to apply a force at the contact points. A component of the force is greater than the weight force of the optical element in terms of absolute value and/or direction.

Abstract: A first part has first, second and third inwardly-facing surface portions angularly spaced about an axis, and a second part has outwardly-facing fourth, fifth and sixth surface portions spaced angularly about the axis, a radial distance from the axis to each surface portion decreasing progressively in a given direction along the axis. Each of the fourth, fifth and sixth surface portions faces, is closely adjacent to, and is substantially congruent in shape with a respective one of the first, second and third surface portions. At least one of the first and second parts is an optical component.

Abstract: An apparatus for assembling a lens module, is provided. The lens module includes a lens and a lens holder for receiving the lens. The lens holder has a through hole and a retainer formed in the through hole. The apparatus includes a base for supporting the lens holder, and a supporter formed on the base, for extending through the through hole of the lens holder and supporting the lens thereon. A height of the supporter is greater than a depth of the through hole of the lens holder. The supporter is movable relative to and away from the lens holder so as to place the lens on the retainer in the through hole of the base.

Abstract: An assembling structure for a magnifying glass comprises a magnifying lens element and an annular lens frame. The annular lens frame is formed with a through assembling hole and provided with a guiding portion and a stopping portion. In an inner surface of the annular lens frame is formed an engaging groove. The guiding portion and the stopping portion are located at two opposite sides of the engaging groove. The annular lens frame is made of polypropylene. After being heated, the polypropylene-made annular lens frame can be softened slightly and enhanced in terms of elasticity, so that the magnifying lens element can be placed from the guiding portion and engaged into the engaging portion. By such an arrangement, the installation of the magnifying lens element in the annular lens frame is simple, quick, labor-saving and stable.

Abstract: The present invention relates to an optical part holding member made of ceramic and a production method thereof, and provides an optical part holding member made of ceramic such that a sintered body after processes of degreasing and sintering has small dimensional changes over dimensions of a mold, and a production method thereof. An example includes a lens holder to hold an optical part, made of a silicon nitride ceramic base composite material produced through a process in which silicon and nitrogen are reacted to be nitrided and contains silicon carbide and an iron compound.

Abstract: The present invention provides a holding apparatus for holding an optical element with an edge whose thickness increases or decreases inwardly, the apparatus including a barrel having an internal diameter larger than an external diameter of the optical element, a support configured to support and position the optical element relative to the barrel via a first surface of the edge in a direction of an axis of the barrel, and a restriction device including a regulation member which faces a second surface of the edge opposite to the first surface in the direction of the axis, is apart from the second surface if an amount of decentering of the optical element is less than a predetermined amount within a tolerance, and contacts with the second surface if the amount of decentering reaches the predetermined amount, and configured to restrict decentering of the optical element.

Abstract: The present invention provides a solution for designing a compact adjustable lens assembly, wherein a circular shaped piezoelectric crystal is bending a thin glass cover, thereby providing a shift of focal length of the lens assembly.

Abstract: A lithographic apparatus is disclosed having a projection system housing supporting internally one or more lens elements, and a movement damper connected to the projection system housing, the movement damper configured to damp movement of the projection system housing at an eigenfrequency of at least one of the one or more lens elements and/or of the projection system housing.

Abstract: A camera alignment system that can enable alignment in at least one of three planes and about an axis of at least one of the planes. An alignment mount can mate to a camera and lens. The alignment mount can comprise a mechanism to adjust the camera relative to the lens to that an image plane of the camera aligns with an image plane of the lens in a predetermined orientation. One predetermined orientation can be that the image plane of the camera being parallel to the image plane of the lens.

Abstract: An optical lens on wafer level consists of a first optical component, a first spacer, a second optical component, at least a first via plug, and an adhesion material. The first spacer includes at least a first via plug passing through the first spacer, wherein the first optical component and the second optical component are separated by the first spacer. The adhesion material is coated in between the first optical component and the first spacer and coated in between the first spacer and the second optical component, and is filled in at least a portion of the first via plug.

Abstract: A probe apparatus in combination with an endoscope includes a confocal laser probe for in-vivo imaging. The probe is insertable through a forceps channel of an endoscope, and has an optical unit. There is a lens barrel. Plural lens optics are mounted in the lens barrel. The plural lens optics include first lens optics disposed on an object side, and opposed to an object within a body. An optically inactive surface is formed with the first lens optics, and has at least one portion protruding from a barrel end surface of the lens barrel on the object side. Preferably, a height difference of protruding the optically inactive surface from the barrel end surface is 10-500 microns. The portion of the optically inactive surface protruding from the barrel end surface is coated with adhesive agent, for adhesion of the first lens optics thereto.

Abstract: The invention relates to a positioning unit for an optical element in a microlithographic projection exposure installation. Said unit comprises a first connection region (A, 22) for connecting to the optical elements, and a second connection region (B, 20) for connecting to an object in the vicinity of the optical elements. At least two levers are connected to the second connection region by means of the respective lever bearing thereof, and the respective load arm thereof is connected to the first connection region by an articulation by means of an intermediate element (31, 33, 36) applied to said articulations. Regulating devices (28, 29) or actuators are arranged on the respective power arms of the levers.

Abstract: According to one embodiment, an optical head includes a light emitting substrate emitting light and allow light of specific wavelength to pass; a mounting base to which the light emitting substrate is fixed and which includes a groove formed in an area overlapping the light emitting substrate; an adhesive filled in the groove of the mounting base and cured by receiving the light having the specific wavelength; and a lens condensing the light emitted from the light emitting substrate.

Abstract: An optical mount for an optical element includes a mounting plate, a lever arm pivot coupled to mounting plate, and an adjustment plate. The optical mount also includes a flexure pivot mechanically coupling the adjustment plate to the mounting plate and a lever arm. The optical mount further includes a first adjustment device extending from the adjustment plate to make contact with the lever arm at a first contact point. A projection of a line from the first contact point to a pivot point, measured along the lever arm, is a first predetermined distance. The optical mount additionally includes a second adjustment device extending from the adjustment plate to make contact with the lever arm at a second contact point. A projection of a line from the second contact point to the pivot point, measured along the lever arm, is a second predetermined distance greater than the first predetermined distance.

Abstract: An optical element holding apparatus includes an annular vibration attenuation plate, which covers a peripheral portion of a lens, and a connection member, which is formed of a damping alloy and which fixes the vibration attenuation plate to a frame body in a state of non-contact with the surface of the lens. The vibration attenuation plate and nitrogen gas in a clearance between the vibration attenuation plate and the surface of the lens form a squeeze film damper.

Abstract: An image pickup lens includes a controller and a manipulator position detector configured to detect a position of a manipulator configured to accept a manipulation used to move the lens. When the manipulation of the manipulator becomes valid and a difference between the position of the manipulator when the manipulation of the manipulator is invalid and the position of the manipulator when the manipulation of the manipulator is valid is equal or smaller than a threshold, the controller controls a movement of the lens from an initial position that is the position of the lens when the manipulation of the manipulator is invalid. When the manipulation of the manipulator becomes valid and the difference is larger than the threshold, the controller controls a movement of the lens from an initial position that is the position of the lens corresponding to the manipulator's position detected by the manipulator position detector.

Abstract: The present invention relates to an optical element fixing component having a hollow portion which includes an optical element. The optical element fixing component is made from a non-crystalline alloy, and a ratio of a linear expansion coefficient of the optical element fixing component toward a linear expansion coefficient of the optical element is 1.5 or less.

Abstract: A lens assembly has: optical members including lenses and spacing rings; and a ceramic lens frame into which the optical members are inserted. A solid lubricant is applied to at least one of a part of the inner peripheral surface of the ceramic lens frame, which part is to be in contact with at least the outer peripheral surfaces of the optical members, and the outer peripheral surfaces of the optical members. Subsequently, the lenses and spacing rings are alternately inserted into the ceramic lens frame and then pressed by a pressing ring.

Abstract: A cam mechanism of a lens barrel includes a cam ring; and a movable frame which moves along an optical axis when the cam ring is rotated, without rotating relative to the cam ring, by engagement of a cam groove provided on the cam ring with a corresponding cam follower provided on the movable frame. The cam groove is formed as a bottomed cam groove including two inclined side surfaces and a bottom surface which connects the two inclined side surfaces. The cam ring includes a single-sided cam section on an end surface of the cam ring, wherein continuity of the reference cam diagram is maintained along the single-sided cam section, and at least a part of one of the two inclined side surfaces which is positioned closer to a nearby end of the cam ring is absent at the single-sided cam section.

Abstract: A large optics stand provides a risk free means of safely tilting large optics with ease and a method of safely tilting large optics with ease. The optics are supported in the horizontal position by pads. In the vertical plane the optics are supported by saddles that evenly distribute the optics weight over a large area.

Abstract: A miniature stacked glass lens module is disclosed. The miniature stacked glass lens module includes at least one stacked optical glass lens element, a lens holder and other optical element. The stacked optical glass lens element is formed by cutting along alignment notches on a glued and stacked optical glass lens array. Then the stacked optical glass lens element and other optical element are mounted into the lens holder to form a miniature stacked glass lens module. Thereby the precise alignment of the optical axis of the lens in the lens module can be achieved. The manufacturing processes of the lens module can be simplified dramatically and the manufacturing cost is reduced significantly.

Abstract: Provided is a lens-driving unit reduced in size and improved in durability. A first flexible printed wiring board of the lens-driving unit has a terminal on one side connected to a first piezoelectric motor and lead in parallel to an optical axis, and the other side connected to a unit for power supply and control, in a loop shape gently bent to an opposite direction to the leading direction. A second flexible printed wiring board of it has a terminal on one side connected to a piezoelectric motor and lead in parallel to the optical axis, and the other side connected to a unit for power supply and control, in a loop shape gently bent to the opposite direction to the leading direction. At such reference plane a structure symmetrically having the second and the first flexible printed wiring board with respect to a reference plane, is employed.