Abstract: An optical component comprises at least one optically effective optical element which heats up when irradiated with light, and at least one holding element for the at least one optical element for holding the at least one optical element in a carrier structure, wherein the at least one optical element is connected to the at least one holding element in heat conducting fashion, and wherein the at least one holding element is at least partially provided with an active cooling system for carrying off heat from the at least one optical element. Additionally or alternatively, a temperature control device is provided which controls the temperature of at least a part of the mount of the optical element.

Abstract: An actuator apparatus of the present invention includes a movable body that is arranged so as to be movable forward or rearward, and a shape memory alloy wire that is provided directly or indirectly to the movable body so as to enter a non-tension state at an ordinary temperature. The shape memory alloy wire is subjected to expansion/contraction control in which an electric current is applied thereto from a power supply portion of an external control circuit portion to change a temperature thereof to a predetermined temperature.

Abstract: An ink cartridge includes a case, an ink supply portion, an air intake portion, and at least one resilient member. The ink supply portion is positioned at a front face of the case, and the ink supply portion is configured to dispense ink from an interior of an ink chamber to an exterior of the ink chamber. The air intake portion is configured to draw air into the ink chamber. The at least one resilient member has a first portion positioned at the front face of the case and a second portion which is positioned a predetermined distance away from the front face of the case in a predetermined direction away from the ink chamber. The resilient member extends from the front face of the case further than the ink supply portion in the predetermined direction.

Abstract: A biasing spring is interposed between a coupling plate and a covering section while being compressed from its natural length. The biasing spring biases, by its resilient force, a lens unit toward a ?Z side to bring a surface of the lens unit at the ?Z side into contact with an abutment portion of a fixing frame section. When a temperature of an actuator is equal to or lower than a predetermined temperature, a biasing force of the biasing spring surpasses a force generated in the actuator, and thus the lens unit is not moved. When the actuator is heated up to a temperature equal to or higher than the predetermined temperature, the lens unit is continuously moved in the +Z direction. Thereby, movement of a lens due to a change of an environmental temperature can be prevented.

Abstract: An optical assembly supported in an arrangement, especially in an objective or in an illuminating or exposure system, in the interior of a housing comprising at least one optical element, especially a lens, a mirror, or an aperture, wherein the at least one element is influenceable by at least one manipulator is characterized in that the at least one manipulator is arranged either outside of the housing or in a holding means that is separated entirely or to a large extent by the help of a decoupling means, and that there is provided an effective coupling between the manipulator and the element to be influenced by the manipulator in the interior of the arrangement.

Abstract: Provided is an adaptive device for shaping a laser beam. The adaptive device includes a variable optical configuration. The variable optical configuration includes: an optical element and a temperature element in contact with the optical element. The adaptive device further includes a controller operatively coupled to the temperature element to apply at least one of heating and cooling to the optical element so as to alter a temperature profile of the optical element, thereby causing an optical property change thereof.

Abstract: A device for the temperature-dependent axial movement of an optical component including a monolithic mounting unit having an outer mounting part forming a fixed holder having an axis and an inner mounting part forming a mount adapted to support the optical component. The mount is movable along the axis. A moving mechanism is connected to the fixed holder and the movable mount. The moving mechanism includes at least one external expansion element including a first material having a first coefficient of thermal expansion and at least one internal expansion element including a second material having a second coefficient of thermal expansion, where the first coefficient of thermal expansion is larger than the second coefficient of thermal expansion. A number of connecting links is disposed in a star-shaped formation and join a respective one of the at least one external expansion element to a respective one of the internal expansion element.

Abstract: The present invention provides a supporting device that supports an optical element, comprising: a first supporting member that is fixed to an outer circumference of the optical element; a plurality of members that is connected to an outer circumference of the first supporting member; and a second supporting member that supports the first supporting member via the plurality of members, wherein each of the plurality of members is configured such that the a rigidity thereof in a first direction inclined relative to a direction orthogonal to an optical axis of the optical element in a plane including the optical axis is lower than a rigidity thereof in each of two directions that are orthogonal to the first direction and that are, orthogonal to each other.

Abstract: A laser beam is generated and transmitted within an enclosed pathway through at least one crystal optic at a power density that progressively degrades transmissivity of the crystal optic with accumulating fluence. The crystal optics are cooled below normal operating temperatures to slow the progressive degradation in the transmissivity of the crystal optics with the accumulating fluence or to accommodate a higher power density without correspondingly increasing the progressive degradation in transmissivity.

Abstract: An optical engine includes a light source system for providing an incident light beam, a reflective light valve, a first case, a projection lens and a second case. The reflective light valve is disposed in the first case for receiving the incident light beam, reflecting and outputting an image light beam or a dumped light beam. The first case provides a first opening located in the light path of the dumped light beam. The projection lens is connected to the first case for receiving and projecting the image light beam to form an image. The second case intercommunicates with the first case via the first opening. The dumped light beam enters the second case through the first opening, and is reflected twice or more inside the second case. Moreover, the inner wall of the second case applies to absorb the energy of the dumped light beam.

Abstract: A liquid lens is mounted in a lens opening provided in a photographic instrument by making use of a mounting member made of a material which transmits light of predetermined wavelength and includes an inner wall shaped and dimensioned to receive the periphery of the lens in spaced, opposed relationship. The mounting member includes a portion mounted or to be mounted to the optical instrument. A bonding material is provided between the lens periphery and the mounting member wall, and the bonding material is activated by exposure to light of the predetermined wavelength, which is injected from outside, through the mounting member. Preferably, the light is injected with a guide member having an opening with an interior wall shaped and dimensioned to conform to an exterior wall of the guide member. The light may be injected from an edge of the guide member remote from the opening, through the guide member, and into the mounting member.

Abstract: A drive device includes a setting unit 12 for setting a control value using a control value-displacement characteristic at a predetermined reference temperature showing a relationship between a control value used to position a movable unit 5 and a displacement of the movable unit 5; a drive unit 20 for supplying drive power corresponding to the control value set by the setting unit 12 to a shape-memory alloy 1 and causing the shape-memory alloy 1 to expand or contract, thereby positioning the movable unit 5; and a correction unit 13 for correcting the control value so as to correct a position shift of the movable unit 5 from a target position resulting from a difference between a control value-displacement characteristic at an ambient temperature and a control value-displacement characteristic at the reference temperature based on the ambient temperature detected by a temperature detection unit 11.

Abstract: A projector includes an optical module, a lens and a heat conducting member. The heat conducting member is disposed between the optical module and the lens. The heat conducting member is used for conducting heat from the lens to the optical module.

Abstract: An image projection apparatus is disclosed which is capable of correcting defocusing due to changes of the temperature of a projection lens, which are caused by various factors. The image projection apparatus includes an image-forming element which is illuminated with light from a light source, a projection lens which includes a focus lens and projects light from the image-forming element onto a projection surface, plural temperature detectors which are provided at positions different from each other in the image projection apparatus. The apparatus further includes a controller which controls the position of the focus lens on the basis of the detection results by the plural temperature detectors.

Abstract: A device or the operation of a device for the holding, especially sealing support of an optical element, especially an optical lens with at least one holding element for mounting the optical element and preferably at least one sealing element for sealing contact at at least a part of the optical element and/or the holding element, wherein the sealing element or at least a part thereof is displaceable between a first position, in which the sealing element rests against the optical element and a second position, in which the sealing element is spaced apart from the optical element, or wherein the sealing element is switchable such that it rests against the optical element under different contact pressure or adjustable contact force. The holding element can either take on the holding function alone and independently of the sealing element or work together with the sealing element in this regard.

Abstract: An optical element module comprising a plurality of module components is provided. The module components comprise an optical element, an optical element holder and a contact element. The optical element has a first coefficient of thermal expansion. The optical element holder holds the optical element via the first contact element and has a second coefficient of thermal expansion, the second coefficient of thermal expansion being different from the first coefficient of thermal expansion. At least one of the module components is adapted to provide at least a reduction of forces introduced into the optical element upon a thermally induced position change in the relative position between the optical element and the optical element holder, the position change resulting from a temperature situation variation in a temperature situation of the plurality of module components.

Abstract: A lens module includes a base, a carrier carrying a lens, two elastic members attached on the base and supporting the carrier, and a number of thermal actuators. The carrier is movable relative to the base. The thermal actuators each have a first arm and a second arm. The first and second arms are aligned in an optical axis direction of the lens and each have a first end electrically and mechanically coupled to the base and a distal end, the distal ends thereof are interconnected and attached to the carrier. The first arms are thinner than the second arms so that the first arms are capable of deflecting toward the second arms due to differential heat generated when an electrical current is passed through the first and second arms from the first ends thereof to the second ends thereof, thereby the carrier is moved.

Abstract: An optical assembly includes an output optical element having a thermally conductive and optically transmissive material and a thermal conduit in thermal communication with the output optical element and having at least one surface configured to be in thermal communication with at least one heat dissipating surface of a light delivery apparatus. The optical assembly further includes a coupling portion configured to be placed in at least two states. In a first state, the coupling portion is attached to the apparatus such that the at least one surface of the thermal conduit is in thermal communication with the at least one heat dissipating surface. In a second state, the coupling portion is detached from the apparatus after having been attached to the apparatus in the first state and in which the coupling portion is configured to prevent re-attachment of the coupling portion to the apparatus.

Abstract: A gimbal mount in which an optical element is mounted in a carriage that mounts for rotation in a holder, which in turn mounts for rotation in a body. A first pair of counter-acting adjustment screws act upon a face of the holder to rotate the holder about a first axis. A second pair of counter-acting adjustment screws act upon a face of the carriage to rotate the carriage about a second axis. The first axis and second axis are orthogonal in the preferred embodiment.

Abstract: A security device comprises a substrate (1) having an array of microlenses (3) on one side and one or more corresponding arrays of microimages (4) on the other side. The microimages (4) are located at a distance from the microlenses (3) substantially equal to the focal length of the microlenses. The substrate (1) is sufficiently transparent to enable light to pass through the microlenses (3) so as to reach the microimages (4). Each microimage (4) is defined by an anti-reflection structure on the substrate (1) formed by a periodic array of identical structural elements, light passing through the substrate and impinging on the microimages being reflected to a different extent than light which does not impinge on the microimages thereby rendering the microimages visible.

Abstract: A lens barrel includes a cam ring (5) that determines the position of a first lens frame (11) in the optical axis direction; a first correcting tube (1) that is made of a material having a coefficient of linear expansion different from that of the cam ring (5) and determines the position of the cam ring (5) in the optical axis direction; and a second correcting tube (2) that is made of a material having a coefficient of linear expansion different from that of a movable frame (6) and determines the position of a second lens frame (21) in the optical axis direction, wherein integrally with a change in the dimension of the first correcting tube (1) in the optical axis direction due to a temperature change, the cam ring (5) moves in the optical direction, and at the same time the first and second lenses (10, 20) move in the optical axis direction; and integrally with a change in the dimension of the second correcting tube (2) in the optical axis direction due to the temperature change, the second lens (20) moves

Abstract: A device for cooling optical components based on optical fibers for transmitting high optical power. The device includes one or more cavities with a flowing coolant to take care of optical power loss. The device includes a transmitting construction material having a low heat expansion coefficient arranged in direct connection with the optical components and arranged to transmit power loss radiation into the cavity which is flushed with the flowing coolant. The transmitting construction material is made as a transparent tube and surrounded by a tubular casing of a non-transparent material having a good absorption capacity so that the cavity is formed between the two materials.

Abstract: A projector includes a light source; a light modulating device that modulates the flux of light emitted from the light source on the basis of image information to form an optical image; a projection optical system that projects the formed optical image; and an exterior housing that accommodates the light source, the light modulating device, and the projection optical system. An opening that introduces air from the outside of the exterior housing into the inside thereof is formed in the exterior housing. An object to be cooled, a duct connecting the opening to the objects to be cooled, and a filter purifying the air introduced from the opening are provided inside the exterior housing. A cooling fan that sucks the air having been purified through the filter and sends the air to the object to be cooled are provided in the duct.

Abstract: An imaging lens assembly includes a mount which comprises a mount adhering portion on which a light curable adhesive is applied, an imaging lens which comprises a lens portion, and a supporting portion to extend from the lens portion, and a holder coupled to the mount adhering portion by the light curable adhesive, and to support the supporting portion.

Abstract: The invention is directed to a temperature-controllable objective, particularly for microscopes and other optical equipment, which comprises a main barrel as the main component part of the objective. The main barrel contains at least one correction mount, cylinder sleeves, mounting rings, carrier rings and/or adjusting rings, and imaging optical elements. In order to control the temperature, at least one structural component part of the objective or an element arranged between structural component parts of the objective is constructed as a temperature-controllable element or as a temperature-controllable foil which is connected (not shown) by leads to a device for monitoring temperature. Further, a temperature gauge or temperature sensor is arranged in the objective and is likewise connected to the device for monitoring temperature.

Abstract: There is disclosed an optical element having a first surface and a second surface bounded by a circular periphery. A rim having an inner surface may extend from the second surface proximate the periphery. At least a portion of the inner surface of the rim may be convex.

Abstract: A system includes a plurality of optical elements, a deformation unit configured to deform a deformable optical element satisfying a following conditional formula included in the plurality of optical elements by applying a force to the deformable optical element: 0.75<EA/EA0<0.95 where EA0 represents an effective aperture of each of the plurality of optical elements and EA represents an axial light flux diameter of each of the plurality of optical elements, and a control unit configured to control the deformation unit, wherein n positions on an outer circumference of the deformable optical element are fixed, the deformation unit includes n actuators, the n actuators apply forces to n positions on the outer circumference other than the fixed n positions, and the control unit controls each of the n actuators independently.

Abstract: A flame scanner collimator, which monitors flames produced by a fossil fuel fired combustion chamber, includes: a substantially cylindrical collimator body defining a hollow portion; a first chamber connected to a second chamber, the first and second chambers defining the hollow portion, the second chamber having a larger diameter than the first chamber; and a plurality of slots each extending in substantially a same direction as a longitudinal axis defining the body. Each slot extends through the body to the first and second chambers to allow cooling/purge air flow therethrough.

Abstract: The disclosure relates to an optical correction device with thermal actuators for influencing the temperature distribution in the optical correction device. The optical correction device is constructed from at least two partial elements which differ with regard to their ability to transport heat. Furthermore, the disclosure relates to methods for influencing the temperature distribution in an optical element.

Abstract: Briefly, in accordance with one or more embodiments, a thermally controlled optical filter comprises a frame coupled to an etalon where the frame includes a resistive thermal device disposed on the frame to obtain thermal measurements of the etalon during operation. The frame may be generally L-shaped or generally square-shaped. The frame may include a fillet that is generally planar, generally beveled or trapezoidal, or generally circular in shape. A heater may be additionally disposed on the frame. The etalon and frame subassembly may be bonded to a micro hot plate that is capable of heating the etalon to an operational temperature.

Abstract: There is provided an optical pickup actuator for actuating a lens holder having an object lens according to an interaction between coils and magnets. The optical pickup actuator includes a lens-seating portion formed on the lens holder to support the object lens and a lens guide portion protruding from the lens-seating portion to securely support the object lens. The lens guide portion has an adhesive confining groove in which adhesive can be injected to securely fix the object lens.

Abstract: A lens assembly includes a first lens and a second lens. The first lens includes a first optically active portion, a first optically inactive portion surrounding the first optically active portion and a first optical axis. The first optically inactive portion includes a first inclined surface relative to the first optical axis. The second lens includes a second optically active portion, a second optically inactive portion and a second optical axis. The second optically inactive portion includes a second inclined surface relative to the second optical axis. The second lens is coupled to the first lens in such a manner that the first inclined surface is in contact with the second inclined surface, and a gap is maintained between the second optically inactive portion of the second lens and the first optically inactive portion of the first lens.

Abstract: A lens module including a lens barrel, multiple lenses, and multiple cushions is provided. The lens barrel has an assembling opening, an inner wall, and multiple positioning structures. The positioning structures are integrally formed on the inner wall. An internal diameter of the positioning structure adjacent to the assembling opening is greater than an internal diameter of the positioning structure far away from the assembling opening. In addition, the lenses are respectively fixed in the corresponding positioning structure along an assembling direction. Each cushion is disposed in a pitch between two adjacent lenses, and each lens assembled in the lens barrel is disposed at a predetermined position through the positioning structures and cushions.

Abstract: There is provided an optical pickup actuator for actuating a lens holder having an object lens according to an interaction between coils and magnets. The optical pickup actuator includes a lens-seating portion formed on the lens holder to support the object lens and a lens guide portion protruding from the lens-seating portion to securely support the object lens. The lens guide portion has an adhesive confining groove in which adhesive can be injected to securely fix the object lens.

Abstract: A lens barrel includes a cam ring (5) that determines the position of a first lens frame (11) in the optical axis direction; a first correcting tube (1) that is made of a material having a coefficient of linear expansion different from that of the cam ring (5) and determines the position of the cam ring (5) in the optical axis direction; and a second correcting tube (2) that is made of a material having a coefficient of linear expansion different from that of a movable frame (6) and determines the position of a second lens frame (21) in the optical axis direction, wherein integrally with a change in the dimension of the first correcting tube (1) in the optical axis direction due to a temperature change, the cam ring (5) moves in the optical direction, and at the same time the first and second lenses (10, 20) move in the optical axis direction; and integrally with a change in the dimension of the second correcting tube (2) in the optical axis direction due to the temperature change, the second lens (20) moves

Abstract: An optical unit is provided which includes gaps dR1 and dR2 in a radial direction that prevent an optical component from being affected by external stress during thermal expansion is formed between an outer circumferential surface of the optical component and an inner circumferential surface of a holder and gaps d0A1 and d0A2 that prevent the optical component adjacent to a pressing component from being affected by external stress during thermal expansion and are formed between predetermined surfaces on the pressing component and the optical component adjacent to the pressing component opposing each other in an optical axis direction.

Abstract: An optical element unit including an optical element and an optical element holder is disclosed. The optical element holder includes a holding element and coupling elements. The holding element holds the optical element and is made of a ceramic material. The elastic coupling elements are attached to the holding element and contact the optical element. The elastic coupling elements provide deformation decoupling between the holding element and the optical element.

Abstract: A projection objective for a microlithography apparatus with improved imaging properties is provided. A manipulator for a projection objective is provided. A microlithography apparatus including a projection objective of this type and/or a manipulator of this type is provided. A method for improving the imaging properties of a projection objective is provided.

Abstract: A holding apparatus for holding an optical element includes: a barrel; a first member having one end connected to the barrel, and an opposite end located apart from the one end in a direction perpendicular to an axis of the barrel and outside the barrel; a second member passing through the hole and having one end connected to the opposite end of the first member and the other end located apart from the opposite end of the first member in the direction and inside the barrel. Their linear expansion coefficients and dimensions are configured so that the opposite end of the second member is in contact with a side of the optical element, and the amounts of displacement of the side of the optical element and the opposite end of the second member due to a change in temperature correspond to each other.

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 objective lens to be fitted into a fitting hole of a nosepiece of a microscope includes an imaging lens that is composed of a plurality of lens groups, and a lens barrel that holds the imaging lens. The lens barrel is formed with a fitting portion that is fitted to the fitting hole of the nosepiece and provided at an outer circumference of a tip portion side away by a given distance from the tip portion where a first lens group in the imaging lens is held, and a mount surface that comes into contact with a contact surface of the fitting hole of the nosepiece upon fitting at the fitting portion. The nosepiece is equipped with the objective lens. The inverted microscope is equipped with the nosepiece fitting the objective lens.

Abstract: A projection system suitable for use in a lithographic apparatus, the projection system including a transmissive optical element and a thermal profile corrector configured to change a thermal profile of the transmissive optical element, the thermal profile corrector including a transfer member and a thermal profile conditioner, the transfer member being moveable into and out of proximity with the transmissive optical element to transfer a desired thermal profile from the thermal profile conditioner into the transmissive optical element.

Abstract: A lens frame is made of ceramic having a linear expansion coefficient that is about the same as the linear expansion coefficient (5 to 10×10?6) of glass lenses. Preferably, a pressing ring and spacing rings are also made of ceramic. A lens assembly produced by using the lens frame, the pressing ring and the spacing rings is installed in an automobile or the like.

Abstract: A diode-laser bar package includes two diode-laser bars mounted on a heat sink with slow-axes of the diode-laser bars aligned. Three spaced apart mounting bosses extend from the front of the heat sink. The package includes two cylindrical lens assemblies. Each lens assembly has an elongated cylindrical lens bonded to a rectangular mounting block. The cylindrical lenses are aligned with the diode-laser bars. Lateral faces of the mounting block are epoxy-bonded to lateral faces of the mounting bosses. Bonding is effected by injecting liquid epoxy between the faces to be bonded though holes extending through the mounting blocks from front to the lateral faces of the mounting blocks. The liquid epoxy is then cured to complete the attachment.

Abstract: A drive apparatus having: a shape memory alloy having a property such that a temperature transformation sensitivity in a temperature range from a starting point of austenite transformation (As) at a predetermined stress to an end point of austenite (Af) is higher than a temperature transformation sensitivity in other temperature range, and a temperature transformation sensitivity in a temperature range from a starting point of martensite transformation (Ms) at a predetermined stress to an end point of martensite transformation (Mf) is higher than a temperature transformation sensitivity in other temperature range; and a driven member which is moved by a transformation of the shape memory alloy; wherein the driven member is moved in a temperature range of higher temperature transformation sensitivity.

Abstract: A thermal contraction stress and a residual contraction stress caused by a difference between the linear expansion coefficients of an optical element unit and a carrier are reduced as much as possible. An optical module includes an optical element unit including optical elements requiring a stress control, and a carrier which supports the optical element unit. As the carrier is made of a material having the same property as that of the substrate material of the optical element, the thermal contraction stress is reduced.

Abstract: An optical assembly includes an output optical element having a thermally conductive and optically transmissive material and a thermal conduit in thermal communication with the output optical element and having at least one surface configured to be in thermal communication with at least one heat dissipating surface of a light delivery apparatus. The optical assembly further includes a coupling portion configured to be placed in at least two states. In a first state, the coupling portion is attached to the apparatus such that the at least one surface of the thermal conduit is in thermal communication with the at least one heat dissipating surface. In a second state, the coupling portion is detached from the apparatus after having been attached to the apparatus in the first state and in which the coupling portion is configured to prevent re-attachment of the coupling portion to the apparatus.

Abstract: The invention relates to an adjustment method, especially for adjusting optical or fiber optical components. According to an embodiment of the invention, a first adjustment process is carried out in which, after a cooling process, the regions of the actuator in which the tensile stresses or compressive strains are frozen following the cooling process are brought to a critical temperature in relation to the operational temperature range of the actuator, at least until the flow processes of the material at said critical temperature are largely completed. A second adjustment process is then carried out.

Abstract: A first mirror (5) that can be located at a reflection position (I) at which an optical path is blocked and a laser beam (a) is reflected, and a second mirror (6) that reflects the laser beam (a) which is reflected by the first mirror (5) are disposed between the condenser lens (2) and the object to be irradiated (4). The first mirror (5) is located at the reflection position (I) so that the laser beam (a) that is transmitted through the condenser lens (2) is sequentially reflected by the first and second mirrors (5 and 6), and an intensity of the laser beam (a) that is again reflected by the first mirror (5) is made to coincide with an intensity of the laser beam (a) that is reflected from the object to be irradiated (4), and the condenser lens (2) is heated in the same manner that the processing laser beam (a) is transmitted through the condenser lens (2) and irradiated on the object to be irradiated (4).

Abstract: An optical metrological system having a heat-generating light source coaxially mounted near a heat-sensitive lens. The system uses a temperature sensor to monitor the lens temperature and a heating element to heat the lens such that the lens operating temperature is greater than a maximum operating temperature of the light source in order to stabilize the focal length of the lens.