Abstract: There is provided a laminated lens array in which a first lens element arranged on a distal end side and a second lens element arranged on a proximal end side are stuck and laminated in a lamination direction, wherein outer faces of a laminated body including the first lens element and the second lens element are located in the lamination direction and have concaves formed being recessed toward a center of the laminated body at least on parts of the outer faces in the lamination direction.

Abstract: A spatial frequency filter device is for use with a laser beam. The device includes: a neutral region, which is configured to transmit or reflect the laser beam; and a deflecting region, which radially adjoins the neutral region and is configured to deflect beam components of the laser beam from a beam axis of the laser beam. The deflecting region has a constant portion, in which a deflecting effect on the beam components of the laser beam for each location in the constant portion is configured to be independent of a distance of a location from the neutral region. the deflecting region has a variation portion, in which the deflecting effect on the beam components of the laser beam is configured to vary, dependent on a distance from the neutral region.

Abstract: An internal-reflective telecentric lens system includes a first lens assembly, a reflector, and a second lens assembly. The first lens assembly includes a first lens. The second lens assembly includes a second lens, a third lens, and a fourth lens, that are disposed in sequence along a light path. The first lens assembly is configured to receive and output one or more light beams towards the reflector. The reflector is configured to reflect the light beams towards the second lens assembly. The second lens assembly is configured to receive and converge the light beams reflected by the reflector at a diaphragm between the second lens and the third lens, and transmit the light beams past the diaphragm through the third and the fourth lenses for imaging.

Abstract: The invention relates to a 9 million pixel black light full-color lens comprising a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a diaphragm, a seventh lens, an eighth lens, a ninth lens, a tenth lens, an eleventh lens and an equivalent prism which are sequentially arranged from front to back along a light incident direction. The invention overcomes the poor resolution with visible light and infrared light, large chromatic aberration in imaging magnification and the like of the existing black light full-color lens, improves imaging effect (i.e. resolution) with visible light and infrared bands by adopting a structure of eleven spherical lenses, cooperated with the equivalent prism, simultaneously adopting a wide-spectrum optimization design for lenses, and provides a high-resolution video stream for image fusion, consequently a bright and colored image is output in a low illumination environment is obtained.

Abstract: A visor for a helmet is disclosed. The visor includes a first lens member, which includes a first transparent shield configured with a photochromic layer. The photochromic layer is configured to adjust a first transmission state of a first viewing area of the first lens member based on the transmission of ambient light through the first viewing area. The visor also includes a second lens member that includes an electrochromic layer. The electrochromic layer is configured to adjust the transmission of ambient light through a second viewing area upon an application of a voltage to the electrochromic layer. The visor also includes a controller configured to adjust a voltage applied to the electrochromic layer, and an attachment element coupled to the first lens member configured to attach to a headgear.

Abstract: Provided is a device for designed for use with a telescope having a primary mirror, such as a reflecting telescope, and to accurately analyzing the size of a step between paired regions of a plurality of mirror segments of the primary mirror.

Abstract: An interchangeable lens that is removably attachable to a camera body includes: a first clock receiver that receives a first clock signal from the camera body; a second clock transmitter that transmits a second clock signal to the camera body; a lens that is driven by a driving force from a first drive member; a receiver that receives an instruction signal from the camera body in synchronization with the first clock signal; and a first transmitter that repeatedly transmits positional information on the lens to the camera body in synchronization with the second clock signal.

Abstract: An optical unit including a reflection portion, a movable body, a fixed body; and a rotation support mechanism that rotates the movable body with respect to the fixed body in an axial direction as a rotation axis, in which the rotation support mechanism has a U-shaped spring member disposed between the fixed body and the movable body in the axial direction and applies a force in a direction that widens the space between the fixed body and the movable body, the spring member has a rotation-axis first forming member, the movable body has a rotation-axis second forming member, and the rotation-axis first forming member and the rotation-axis second forming member are arranged at positions where a rotation axis passes through a center of gravity position of the movable body.

Abstract: An apparatus includes an in-line reflective optical system configured to receive an input optical beam and provide an output optical beam. The in-line reflective optical system includes first and second powered mirrors aligned back-to-back. The first powered mirror is configured to reflect the input optical beam as a first intermediate beam. The in-line reflective optical system also includes first and second reflective surfaces respectively configured to reflect the first intermediate beam as a second intermediate beam and to reflect the second intermediate beam as a third intermediate beam. The second powered mirror is configured to reflect the third intermediate beam as the output optical beam. A spacing between the first and second reflective surfaces and the first and second powered mirrors is adjustable to control a focus of the output optical beam without introducing boresight error in the output optical beam.

Abstract: A light emitting or detecting apparatus comprises a catadioptric lens body including a spherical lens containing an integral reflector and defining first and second conjugate focal planes relative to a subject plane. A pair of light emitters or a pair of Sight detectors are arranged respectively at the first and second conjugate focal planes to detect or emit light travelling along a common axis to or from the subject plane.

Abstract: In a display apparatus body (10A), a first polarization plate (31), a first wave plate (32), a reflection layer (33), a second wave plate (35), and a second polarization plate (36) are arranged between a display element (De) and a lens (S) and are lined up in this order from the display element (De) toward the lens (S). Further, the reflection layer (33) includes reflection regions (E1) that correspond to positions of non-light emission regions (R2) of the display element (De) and that reflect light and includes light transmission regions (E2) that correspond to positions of a plurality of light emission regions (R1) and that transmit light. This can obtain a display apparatus that can improve the use efficiency of light emitted from a display element.

Abstract: A lens system provides a zoom function (variable magnification) in a low profile camera (lens system height less than or equal to 6 mm), which may be in a cellular phone. The lens system includes at least three movable lens groups that are movable along a common optical axis. Each of the three movable lens groups is coupled to a corresponding actuator. Responsive to a request for a change in focal length or magnification, a controller sends a corresponding signal to each of the actuators that move the corresponding lens group by a corresponding distance in a corresponding direction. The various movable lens groups may be moved by different distances and in different directions of movement. An f-number of the lens system is less than f/3.0. Focusing of an image cast onto an image sensor is accomplished by adjusting the position along the optical axis of one of the movable lens groups.

Abstract: An electrochromic structure can include a substrate and an electrochromic residue disposed on the substrate. The electrochromic structure can include an electrochromic stack on the substrate. A process can be used to separate the structure. The process can include forming a filament in the substrate and applying a thermal treatment to the substrate. Forming a filament can be performed by applying a pulse of laser energy to the substrate. In a particular embodiment, a filament pattern including a plurality of filaments can be formed in the substrate. The substrate can include mineral glass, sapphire, aluminum oxynitride, spinel, or a transparent polymer.

Abstract: An optical imaging lens assembly includes seven lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the first lens element is convex in a paraxial region thereof, and at least one surface among the object-side surfaces and the image-side surfaces of the seven lens elements has at least one inflection point.

Abstract: The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a display system for a viewing optic. In one embodiment, the disclosure relates to a viewing optic having a display system with multiple active displays for generating images that are projected into a first focal plane of an optical system.

Abstract: A lens installation system that includes a tool for a keyhole in an imaging system housing. The tool includes a base having a first diameter dimensioned to fit below a lens housing cavity of an imaging system housing. The base has a top end forming a shoulder to seat the shoulder below the lens housing cavity. The tool includes a lens centering seat integrated with the base. The seat includes a ring and a recessed cavity within the ring. The ring is defined by an outer surface dimensioned to contact an inner diameter of an inner surface of the keyhole below the lens housing cavity, a first sloped surface providing a chamfered edge that is inclined for a distance above the outer surface, and a second sloped surface descending from an upper edge of the first sloped surface by a predetermined distance.

Abstract: A zoom lens consisting of, in order from an object side to an image side: a first lens group that has a positive refractive power; a second lens group that has a negative refractive power; an intermediate lens group that consists of one or two lens groups; and a final lens group, wherein during zooming, the second lens group moves along an optical axis, and all distances between adjacent lens groups change.

Abstract: An apparatus can include an electrochromic device configured to be maintained a continuously graded transmission state. When using the apparatus, the electrochromic device can be switched from a first transmission state to a continuously graded transmission state and maintained in the continuously graded transmission state. The current during switching can be higher than current during maintaining the continuously graded transmission state. In an embodiment, the grading can be reversed to provide a mirror image of the grading. In another embodiment, at least 27% and up to 100% of the electrochromic device can be in a continuously graded transmission state. The control device can be located within an insulating glass unit, adjacent to the insulating glass unit, or remotely from the insulating glass unit. In a further embodiment, a gap between bus bars can be used to form a portion of the electrochromic device that can be continuously graded.

Abstract: A substrate processing system includes a processing chamber, a substrate support, a laser, and a collimating assembly. The substrate support is disposed in the processing chamber and is configured to support a substrate. The laser is configured to generate a laser beam. The collimating assembly includes lenses or mirrors arranged to direct the laser beam at the substrate to heat an exposed material of the substrate. The lenses or mirrors are configured to direct the laser beam in a direction within a predetermined range of being perpendicular to a surface of the substrate.

Abstract: A diffractive optical device includes at least one diffractive optical element. The diffractive optical element generates light having a first order and light having a second order from a laser beam input to the diffractive optical element. The diffractive optical element includes a first phase pattern and a second phase pattern. The first phase pattern converts the laser beam into a line beam. The second phase pattern diffracts the laser beam in a short axis direction of the line beam to generate the light having the first order and the light having the second order. A first focal plane of the light having the first order is located at a position different from a second focal plane of the light having the second order on an optical axis of the laser beam.