Abstract: An optical mechanism is provided, including a housing, a base, and a metal supporting member. The housing has a top cover and a sidewall connected to the top cover, wherein the top cover and the sidewall comprises plastic material. The base is connected to the housing, wherein an optical element is accommodated in a space between the housing and the base. At least a part of the metal supporting member is embedded in the housing.

Abstract: The invention relates to a lens, comprising a container (100) defining a volume (V) which is filled with a transparent liquid (2), wherein the container (10) comprises a transparent and elastically deformable membrane (20) and a rigid member (30), wherein the membrane (20) and the rigid member (30) delimit said volume (V), and a lens shaping element (200) that contacts the membrane (20) and defines an area (21) of said membrane (20), which area (21) has an adjustable curvature for adjusting the focal length of the lens (1). According to the invention, the lens (1) is configured to compensate a thermal expansion of the liquid (2) and/or a change of the refractive index of the liquid (2) due to an increased temperature of the liquid (2) in order to reduce an unwanted thermally induced change of the focal length of the lens (1).

Abstract: A vehicular camera includes a circuit board having an imager disposed at a first side of the circuit board. A lens barrel accommodates a lens assembly having a plurality of lens elements spaced apart along the lens barrel by respective lens spacers. Each lens spacer is formed of a material having a coefficient of thermal expansion (CTE) of 5 ppm/° C. or less. The circuit board is positioned at a lens holder, and the lens barrel is positioned at a lens holder so as to optically align the lens and the imager. The lens barrel is formed of a material having a CTE that matches within ten percent of the CTE of the material that forms the lens holder, with the CTEs of the lens barrel and lens holder materials being greater than the CTE of the material of the lens spacers.

Abstract: An optical device may include an enclosure including an optical aperture and a plurality of optical components positioned within the enclosure, where the plurality of optical components are to emit and/or receive light through the optical aperture. The optical device may include at least one heating element or cooling element to provide an isothermal environment to the plurality of optical components, where the at least one heating element or cooling element is thermally coupled with the enclosure.

Abstract: Embodiments provide controlling an actuator such that inaccurate actuator control caused by the heat created when the actuator moves can be compensated. In some embodiments, a temperature sensor is implemented in an actuator controller outside of the actuator, and the temperature sensor is connected to the actuator through heat conductive materials. In these embodiments, the cost and the form factor of the aforementioned actuator is reduced compared to implementation of temperature sensors within the actuator.

Abstract: The present invention relates to an optical element including an optical surface, a tapered part located on an outer peripheral side of the optical surface and having a normal line of which a direction heading to an outside of the optical element from an inside thereof, faces an optical axis side, and a side surface part located on an outer peripheral side of the tapered part, in which when a distance in a straight line vertical to an optical axis of from an end point on the optical axis side of the tapered part to the side surface part is denoted by A and a height of the tapered part based on the straight line is defined by B, in a cross section including the optical axis and passing through the tapered part, B/A is larger than 0.2.

Abstract: A camera module is provided. A camera module according to an aspect of the present invention comprises: a lens barrel accommodating a lens; a lens holder accommodating the lens barrel; an image sensor disposed under the lens barrel; and a printed circuit board having an image sensor mounted thereon and coupled to the lens holder, wherein the lens barrel and the lens holder are primarily coupled to each other in a state where an optical axis of the lens and an optical axis of the image sensor are aligned, and are secondarily coupled to each other in the primarily coupled state.

Abstract: A heating device for a lens of a camera includes at least one body including at least one conductive material, the at least one body forming at least one of a transparent coating, a non-transparent coating, a free standing film, a paint, or a bulk composite material, and at least two electrical contacts contacting the conductive mass for applying an electrical voltage to the conductive mass, the at least two electrical contacts being at least one of injection-molded onto the body and injected into the body.

Abstract: A projector according to the present disclosure includes a light source device, a plurality of light modulation devices, a combining prism, a support member, and a projection optical system. A first light modulation device includes a first light modulation panel having a first incident side substrate, a first exit side substrate, and a liquid crystal layer, a frame body which has a first opening part, and surrounds a side surface of the first incident side substrate and a side surface of the first exit side substrate, a second incident side substrate opposed to the first incident side substrate in the first opening part, an incident side member fixed to the second incident side substrate and the frame body, a support target member supported by the support member, and a holding member which is made elastically deformable.

Abstract: A lens unit may include lenses and a holder in a tube shape which holds the lenses on an inner side such that in the lenses, a side face of a first lens located on a most object side may include a first side face part which is extended from an outer edge of a first face that is an object side face of the first lens toward an image side, a second side face part which is extended from an object side toward the image side on the image side with respect to the first side face part and an outer side in a radial direction with respect to the first side face part; and a third side face part which connects an image side end part of the first side face part with an object side end part of the second side face part.

Abstract: A liquid lens can include a chamber and a first fluid and a second fluid contained in the chamber. The first fluid and the second fluid may be immiscible, forming a fluid interface between the two fluids. The liquid lens may also include a first electrode insulated from the two fluids. The liquid lens may include a second electrode in electrical communication with the first fluid. The liquid lens may be configured such that a position of the fluid interface is based at least in part on voltages applied to the electrodes. The lens may further include a window configured to transmit light therethrough along an optical axis. Further, a flexible member may be configured to cause the window to displace axially along the optical axis to change the volume of the chamber.

Abstract: The present disclosure provides a lens module, including a stopper for fixing the lens group. The lens barrel includes a barrel wall abutting against the stopper, the stopper fixes, from an image side surface of the lens group, the lens group in the lens barrel, where the stopper includes a mounting surface arranged opposite to the lens group. The mounting surface includes an abutting surface and a stopper surface, the abutting surface abuts against the lens group, the stopper surface is disposed separately form the lens group, and a distance between the stopper surface and the lens group along a direction parallel to an optical axis is less than or equal to 5 ?m. A stability of the lens module is improved and an imaging quality of the lens module and an electronic device using the lens module is ensured.

Abstract: A camera module includes a lens assembly, a holder, and a thermal deformable material. The lens assembly includes at least one lens and a lens barrel, wherein the lens barrel includes a wall surrounding a central axis of the lens assembly to define a receiving chamber, and the lens is disposed in the receiving chamber. The holder surrounds the lens barrel and supports the lens assembly. The thermal deformable material is disposed between an outer wall of the lens barrel and an inner wall of the holder.

Abstract: An optical component includes a skeleton structural portion, and an optical characteristic portion combined with the skeleton structural portion, made of a resin material and having a predetermined optical characteristics. The skeleton structural portion defines a plurality of regularly disposed openings and the resin material of the optical characteristic portion fits into the openings such that the skeleton structural portion is combined with the optical characteristic portion through the openings.

Abstract: Provided is a thermal barrier film having, dispersed in a resin matrix, high-refractive-index particles having a D-line refractive index of 2.5 or more and 3.2 or less. The high-refractive-index particles have an average particle size of 2.0 ?m or more and 5.0 ?m or less. Provided are a thermal barrier film that reduces a temperature rise due to sunlight by virtue of having a high reflectance even as a thin film, has high film thickness accuracy, and has high abrasion resistance, a thermal barrier paint for forming such thermal barrier film, and an optical instrument including such thermal barrier film.

Abstract: A camera capable of automatically compensating focal length includes a base, an adjust seat, and a lens barrel. The adjust seat includes a first ring, a second ring, and a connecting member. The first ring and the second ring are coaxially sleeved with each other and a distance is kept between the first ring and the second ring. The first ring includes a first end and a second end that are axially opposite to each other. The first end is fixed on the base. The second ring includes a third end and a fourth end that are axially opposite to each other. The third end is connected to the second end of the first ring via the connecting member. The fourth end has a first coupling part. The lens barrel has a second coupling part correspondingly coupled to the first coupling part.

Abstract: An apparatus includes, in order from an object side to an image side, a focusing lens group, a zoom lens group, and a relay lens group. The relay lens group includes an extender group and a correction lens group. The apparatus includes a temperature detector, a storage storing information relating to a moving amount of the correction lens group, and a controller configured to control a position of the correction lens group. The storage stores first information relating to the moving amount for correction of focus movement due to change in a temperature and insertion of the extender group. The controller obtains the moving amount based on the temperature and the first information. A specific conditional expression is satisfied.

Abstract: A heating device is provided. The heating device is installed on a camera device, and includes a thermal sleeve, a thermally conductive elastomer and a heating sheet. The thermal sleeve has an inner-wall surface and an outer-wall surface. The thermally conductive elastomer is configured on the inner-wall surface of the thermal sleeve. The heating sheet is configured on the outer-wall surface of the thermal sleeve. The heat generated by the heating sheet can be transferred to the lens of the camera through the thermal sleeve and the thermally conductive elastomer to defog and defrost the lens.

Abstract: An optical module that stably operates an optical camera shake correction, an autofocus function and the like even if a temperature change occurs; a driving apparatus including an actuator that changes a relative position between a lens section and an imaging device, a correction section that corrects a driving amount of the actuator according to temperature information showing an ambient temperature of the lens section, and a control section that controls the driving amount of the actuator; a lens unit, a device, a correction method, and a computer readable recording medium are provided.

Abstract: An optical module structure is provided. The optical module structure includes a holder, an elastic damper layer, and an optical component. The holder has an inner surface; the elastic damper layer is on the inner surface and has a trench at a first surface of the elastic damper layer; and the optical component is engaged with the elastic damper layer through the trench. Also, an optical system is provided. The optical system includes a light source, an, and a reflector, wherein a plurality of optical components in the optical module are arranged along a direction perpendicular to a direction of gravity.

Abstract: A lighting module includes: a circuit board having a plurality of first recesses; an optical lens disposed on the circuit board and including a plurality of protrusion portions; a light emitting device disposed between the optical lens and the circuit board; and an absorbing layer disposed on the circuit board. The optical lens includes: a bottom surface, a second recess having an incident surface concave at a center region of the bottom surface, and a first exit surface. Each of the protrusion portions protrudes from the bottom surface toward the circuit board. The second recess is disposed on the light emitting device, and a portion of each of the protrusion portions is disposed in each of the first recesses. The absorbing layer surrounds at least one of the protrusion portions on the circuit board.

Abstract: This planar light source device has a pair of substrates, a pair of irradiation plates disposed between the pair of substrates, and a plurality of light emission devices disposed on one or both of the pair of substrates. In a cross-section of the light emission devices in a direction perpendicular to the irradiation plates through an optical axis, the luminosity of light emitted in a 7.0° direction when 0° is the optical axis direction and the luminosity of light emitted in a (tan?1(t/L))° (where t represents the gap between the irradiation plates, and L represents the gap, in a direction along the pair of irradiation plates, from the surface of a light emission device disposed on one of the substrates to an end part of the other-substrate-side irradiation plate) direction or a (tan?1(t/2L))° direction satisfy a prescribed relationship.

Abstract: A vehicular camera is configured to be disposed at a vehicle so as to have a field of view exterior of the vehicle. The camera includes a lens holder having a lens barrel accommodating a lens, a circuit board, and an imager disposed at a first side of a circuit board substrate. The circuit board substrate has a CTE that is different from the CTE of the lens holder. The circuit board substrate is attached at support posts extending from the support structure, with the support posts configured to flex in a radial direction toward or away from the longitudinal axis of the lens barrel.

Abstract: There is provided an imaging apparatus capable of efficiently dissipating heat generated by an electronic circuit unit and eliminating noise. The imaging apparatus includes a housing 8, which includes an outer frame member 7 and an inner frame member 6 that is made of a metal, a lens unit 3, which is attached to an opening of the housing 8, a substrate 41, on which a heat dissipating wiring line is formed, an electronic circuit unit 4, which is provided in the inner frame member 6, and a fixing member 9, which is made of a metal, is in contact with the heat dissipating metal wiring line 43 in the electronic circuit unit 4 and the inner frame member 6, and fixes the electronic circuit unit 4 to the inner frame member 6. The configuration described above achieves not only efficient dissipation of the heat from the electronic circuit unit 4 via the heat dissipating metal wiring line 43 and the fixing member 9 to the inner frame member 6 but noise elimination.

Abstract: An adjustable optical lens, a camera module and an aligning method thereof are disclosed. The adjustable optical lens includes at least one lens element and an optical structure element. Each of the lens elements is successively and overlappingly arranged in an photosensitive apparatus of the optical structure element, wherein at least one of the lens elements is configured as an adjustable lens element whose assemble position is adjustable. The optical structure element has at least one adjusting channel and at least one fixing channel for adjusting and fixing the adjustable lens element respectively.

Abstract: A heating device for a lens of a camera includes at least one body including at least one matrix material and at least one conductive material, the conductive material being dispersed in the matrix material to form a conductive mass, and at least two electrical contacts contacting the conductive mass for applying an electrical voltage to the conductive mass. A system includes such a heating device and a camera, a rear view display device for a vehicle includes such a heating device or such a system, and a vehicle includes such a rear view display device.

Abstract: A plastic lens element includes an optical effective portion and a lens peripheral portion in order from a central axis to an edge of the plastic lens element. The lens peripheral portion surrounds the optical effective portion and includes a plurality of curve-shaped strip structures. Each of the curve-shaped strip structures is located and extended along a radial direction of the central axis. Each of the curve-shaped strip structures is curved in a concave form. The curve-shaped strip structures are prearranged in a circumferential direction of the central axis and around the optical effective portion. The curve-shaped strip structures are not directly connected to the optical effective portion.

Abstract: A lens control apparatus for moving a lens in an optical axis direction, including: a stepping motor for driving the lens; a controller for obtaining a drive amount on the basis of an input target position, instructing a rotational position of the stepping motor to perform drive control, wherein the controller obtains, in accordance with a first drive amount when the stepping motor is driven to a current position, a second drive amount from the current position to a target position, a third drive amount obtained by correcting the second drive amount, and instructs a rotational position on the basis of the third drive amount.

Abstract: An optical device includes a light modulation device disposed on an optical axis of incident light, and a holding section configured to hold the light modulation device. The holding section includes an inflow part to which a liquid supplied from an outside of the holding section inflows, a flow channel forming part disposed along a circumferential edge of the light modulation device so as to have an annular shape, and having a flow channel through which the liquid flowed from the inflow part circulates, and an outflow part from which the liquid having flowed through the flow channel outflows to the outside of the holding section. At least one of an inside of the inflow part and an inside of the flow channel is provided with at least one projection.

Abstract: The present invention provides a portable electronic device, and an image-capturing module thereof and a carrier assembly thereof. The image-capturing module includes a circuit substrate, an image-sensing chip, at least one electronic component, a package structure, and a lens assembly. The circuit substrate has a top surface and a bottom surface. The image-sensing chip is electrically connected to the circuit substrate, and the image-sensing chip has an image-sensing area. The at least one electronic component is disposed on the bottom surface of the circuit substrate and electrically connected to the circuit substrate. The package structure is disposed on the bottom surface of the circuit substrate to cover the at least one electronic component. The lens assembly includes a holder structure disposed on the top surface of the circuit substrate and a lens structure held by the holder structure and corresponding to the image-sensing area.

Abstract: An optical component group for use in a spectrometer module of a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The optical component group includes a light dispersing element and an achromatic lens assembly disposed between the light dispersing element and a light entrance port of the spectrometer module where the achromatic lens assembly is thermo-compensating permitting thermal expansion and contraction of the achromatic lens assembly in a linear direction where the linear directions is also transverse to a light beam from the light entrance port through the achromatic lens assembly and to the light dispersing element and back through the achromatic lens assembly.

Abstract: A hybrid communications assembly for a spacecraft is provided. The hybrid communications assembly may include an assembly base, one or more laser communications terminals mounted on the assembly base, and a radio frequency antenna system mounted on the assembly base. The assembly may be mounted on an earth deck of the spacecraft, and the laser communications terminals may be mounted at an angle between 20 and 70 degrees with respect to the earth deck. A thermal radiator may be mounted on the assembly base and thermally coupled to the laser communications terminal. The radio frequency antenna system may be disposed between the laser communications terminals. The radio frequency antenna system may include one or more antenna reflectors mounted on the assembly base and one or more antenna feeds mounted on a tower.

Abstract: An optical device includes a light modulation device disposed on an optical axis of incident light, and a holding section configured to hold the light modulation device. The holding section includes an inflow part to which a liquid supplied from an outside of the holding section inflows, a flow channel forming part disposed along a circumferential edge of the light modulation device so as to have an annular shape, and having a flow channel through which the liquid flowed from the inflow part circulates, and an outflow part from which the liquid having flowed through the flow channel outflows to the outside of the holding section. At least one of an inside of the inflow part and an inside of the flow channel is provided with at least one projection.

Abstract: Provided are a zoom lens device and a method for controlling the device, capable of reducing astigmatism regardless of the position of the zoom lens. In accordance with a zoom command, a lens constituting a zoom optical system is moved in the direction of the optical axis (step 81). The position of the moved lens is detected (step 82), and an amount of rotation corresponding to the detected position of the moved lens is read from a table that is stored (step 83). The lens is rotated by the read amount of rotation (step 84). As a result of the rotation of the lens, astigmatism in the zoom optical system is reduced.

Abstract: A coaxial transmitter optical subassembly (TOSA) including a cuboid type TO laser package may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The cuboid type TO laser package is made of a thermally conductive material and has substantially flat outer surfaces that may be thermally coupled to substantially flat outer surfaces on a transceiver housing and/or on other cuboid type TO laser packages. An optical transceiver may include multiple coaxial TOSAs with the cuboid type TO laser packages stacked in the transceiver housing. The cuboid type TO laser package may thus provide improved thermal characteristics and a reduced size within the optical transceiver.

Abstract: In order to provide a projection lens barrel and a projection display device that are capable of correcting the optical characteristics of a plurality of lens groups, a projection lens barrel, comprising a lens optical system causing light from an image display element to be formed as a projected image on a screen, also comprises correction mechanisms that move each of at least two lens groups along an optical axis and correct the optical characteristics to be corrected, said lens groups each having different optical characteristics for correction in order to suppress reduction in image quality of a projected image caused by changes in optical characteristics caused by temperature changes in the projection lens barrel.

Abstract: A camera arrangement for or in a motor vehicle includes at least one objective with each objective including at least one lens. A temperature measurement device is configured to measure the temperature of the objective and/or of the environment of the objective. A temperature adjustment device is thermally coupled to the at least one objective and configured to adjust the temperature of the objective as a function of the measured temperature.

Abstract: The present invention provides an imaging device in which focus movement due to a temperature variation is suppressed and the infiltration of foreign matter such as liquid or dust is prevented. An imaging device 10 is provided with an imaging lens 11, an imaging element 12, and an intermediate member 15. The imaging lens 11 is held by a lens-barrel 13 and forms an image of a photographic subject. The imaging element 12 captures the image of the photographic subject which is formed by the imaging lens 11. The intermediate member 15 has, on the inner-peripheral-surface of one end thereof, a flange portion 15a which comes into contact with the lens-barrel 13, and holds the lens-barrel 13 by joining the front surface 26 of a flange portion 13b of the lens-barrel 13 and the surface 27 on the imaging element 12 side of the flange portion 15a to each other.

Abstract: Fabricating a wafer-scale spacer/optics structure includes replicating optical replication elements and spacer replication sections directly onto an optics wafer (or other wafer) using a single replication tool. The replicated optical elements and spacer elements can be composed of the same or different materials.

Abstract: An optical device includes a light modulation device disposed on an optical axis of incident light, and a holding section configured to hold the light modulation device. The holding section includes an inflow part to which a liquid supplied from an outside of the holding section inflows, a flow channel forming part disposed along a circumferential edge of the light modulation device so as to have an annular shape, and having a flow channel through which the liquid flowed from the inflow part circulates, and an outflow part from which the liquid having flowed through the flow channel outflows to the outside of the holding section.

Abstract: This invention provides a lens device and a correction method therefor whereby the focal position of the lens device can be corrected with high accuracy even if a lens surface shape or the like is not uniform. A ring-shaped lens fixing frame 52 is mounted on the outer periphery of a lens 51. A gear 53 is formed on the lens fixing frame 52 in the circumferential direction. A gear 54, which engages with the gear 53, is rotated by a motor 20A. Then, the lens 51 rotates about the optical axis L thereof. Further, a rack 57, which extends in the direction of the optical axis L, is formed on a part of the lens fixing frame 52. A pinion 58 engages with the teeth 57A of the rack 57, and the pinion 58 is rotated by another motor 20B. Then, the rack 57 moves in the direction of the optical axis L, and thus the lens 51 moves in the direction of the optical axis L.

Abstract: A zoom lens device includes a focusing lens group arranged on an object side, and a variator lens group next thereto, and a temperature sensor. The focusing lens group includes a focusing lens, and a temperature-based correction lens for correcting changes in focal point caused by temperature changes around the focusing lens group. The temperature-based correction lens is moved by a temperature-based correction lens driving mechanism along an optical axis to a position determined by a temperature detected by the temperature sensor, independently of the positions of the focusing lens or variator lens group. Thereby, the zoom lens device is capable of favorably correcting defocus of the lens group caused by an ambient temperature change with a simple correcting mechanism.

Abstract: The present invention relates to a data carrier, especially a security document, such as an identification card, e.g. a passport or a driving license, a credit card and a bank card, the data carrier comprising authentication data comprising personalized data, and as a security feature, an array of lenticular elements being arranged to provide only from predetermined angles of view an image of at least a piece of authentication data of said authentication data. In or to make the data carrier impossible or at least very difficult to copy and forge, the array of lenticular elements is provided with a complex structure providing a further security feature.

Abstract: The temperature at different locations along a multiplexed laser array may be monitored by sensing temperature at two locations within a transmitter optical subassembly (TOSA) package housing the laser array. The temperature at the two locations is used to determine a temperature tilt across the laser array. Estimated temperatures may then be determined at one or more other locations along the laser array from the temperature tilt. The estimated temperature(s) may then be used to adjust the temperature proximate the other locations, for example, for purposes of tuning lasers at those locations along the laser array to emit a desired channel wavelength. The TOSA package may be used in an optical transceiver in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

Abstract: An auto-focus actuator unit including a lens carrier slidably received within a stationary housing frame for a reciprocating motion provided by an actuator is described. The housing frame being carried by a bottom plate provided with an opening, in correspondence with one or more lenses carried by the lens carrier, and with a dust barrier projecting towards the lens carrier and having such a height as to maintain a vertical overlap with the lens carrier over the whole travel of the latter.

Abstract: An optical module includes: a butterfly-type optical device including a body that contains a heating element in an interior space, a lid body that puts a lid on the interior space, and a plurality of pins; a substrate including a connecting surface to which the plurality of pins are connected; and a heat-dissipating component arranged to the connecting surface side, wherein the optical device is connected to the connecting surface with a heat-dissipating surface, of a part that has been arranged with the heating element, oriented to the heat-dissipating component side, and with a gap provided to a side of the lid body opposite to a side of the interior space.

Abstract: An optical lens device forms a condenser lens having a first lens of a positive focal length and a second lens of a negative focal length. The first and second lenses are stacked with their optical axis aligned. The first lens has a lens section, edge section and glass member having a linear expansion coefficient smaller than that of the lens section and the edge section to suppress shape change of the first lens due to temperature change of the first lens. The second lens, which is stacked with the first lens, is used for offsetting a change of the positive focal length generated in the first lens when the temperature varies. The glass member having a small linear expansion coefficient suppresses that shape change of the first lens which is not compensated by the second lens.

Abstract: Techniques are disclosed for systems and methods to provide thermal despace compensation for optics assemblies, such as devices including one or more lenses and/or optical devices. A thermal despace compensation system may include one or more interfaces substantially situated between optical devices that expand and contract with changing temperature according to their coefficients of thermal expansion (CTEs). Each interface may be implemented with one or more shapes and/or interfaces adapted to provide a compensation despace to compensate for thermal expansion and contraction and/or reduce optical defects caused by changes in temperature of the various optical devices.

Abstract: An optical arrangement includes at least one optical element and a support element for the optical element. The optical element and the support element are connected together by way of at least three decoupling elements. The decoupling elements are formed monolithically with the optical element and with the support element.

Abstract: An optical instrument for measuring has an a stabilization component for stably connecting an optical assembly and holder to at least one stabilization element that can be compressed in the gap. The stabilization element has, in an unmounted state, a thickness which is greater than the width of the gap, and the optical assembly, the holder and the stabilization component are configured and cooperate such that the stabilization element, which is positioned between optical assembly and holder, in a roughly positioned state, is compressed, by way of inserting the optical assembly into the holder, into the gap and is plastically deformed in the gap such that elastic forces act radially with respect to the optical axis between assembly and holder and the assembly and the holder are disposed in the radial direction in a stabilized state with respect to one another.