Abstract: A zoom lens includes a focus lens unit that moves in focus adjustment, a magnification lens unit including lens units that move in magnification, and a relay lens unit that does not move for magnification, in this order from the object side toward the image side, and a correction lens unit that is disposed in the focus lens unit or magnification lens unit and moves in the optical axis direction to correct displacement of the in-focus position. The amounts of change in in-focus position at the wide angle and telephoto ends with the correction lens unit moved by 1 mm in the optical axis direction, the maximum absolute value of the amount of movement of the correction lens unit for correcting displacement of the in-focus position, and the maximum absolute value of the amount of movement of the lens units in the magnification lens unit are set as appropriate.

Abstract: The present disclosure provides an image lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof; a second lens element; a third lens element having an object-side surface being convex in a paraxial region thereof; a fourth lens element; a fifth lens element with an image-side surface having at least one convex critical point in an off-axial region thereof, both of an object-side surface and the image-side surface thereof being aspheric; and a sixth lens element having an image-side surface being concave in a paraxial region thereof and at least one convex critical point in an off-axial region thereof, both of an object-side surface and the image-side surface thereof being aspheric.

Abstract: A virtual curved surface display panel, a method of manufacturing the same, and a display device are provided. A set of vertical lenticular lens and horizontal lenticular lens fitted tightly and orthogonally is arranged on a light exit surface of a pixel in the flat display panel, which forms an equivalent spherical lens. The focal lengths of the equivalent spherical lenses are symmetrically distributed with a central pixel as a symmetry axis, and focal lengths of the equivalent spherical lenses in the columns located on the same side of the symmetry axis are not equal to each other. Therefore, the equivalent spherical lenses enable the images of the pixels to form a curved surface, thereby realizing virtual curved surface display.

Abstract: The present invention provides a method for designing a light diffusion pattern with which a light diffusion pattern to exhibit desired light diffusion properties can be designed depending on a few systematic procedures. The method includes a lens data preparation step of preparing lens data having desired light diffusion properties, a placement step of placing a plurality of lens data (100) prepared in the lens data preparation step in a predetermined region (200), a cutting step of, when an overlap (210) of lenses (100) occurs in the placement step, cutting out a part (421) of a lens shape to eliminate the overlap (210), and a repositioning step of replicating a shape of the cutout part (421) and repositioning it to another place.

Abstract: A display panel and display device having the same are provided. The display panel includes a quantum dot color filter layer configured to convert a color of light; a transparent front substrate provided at a first side of the quantum dot color filter layer; and a low refractive layer provided between the quantum dot color filter layer and the front substrate, the low refractive layer having a refractive index that is lower than a refractive index of the quantum dot color filter layer.

Abstract: A display mirror assembly having a mount operably coupled to a vehicle interior. The mount includes one of a ball and a socket extending forwardly therefrom. An engagement plate is pivotally coupled with the mount via the other of a ball and a socket extending rearwardly from the engagement plate. The engagement plate includes a first support member and a second support member pivotally coupled to the first support member. A carrier plate is operably coupled with the engagement plate. The carrier plate supports a rear housing on a rear portion thereof. A glass element is operably coupled with the carrier plate. A display module is configured to be turned to an on state and an off state. An actuator device is disposed on a bottom surface of the housing and is operably coupled with the glass element. The actuator device is adjustable to tilt the glass element.

Abstract: A system for stereoscopic visualization of image information includes a display device defining a display area for displaying a left and a right partial image. The display device displays the left partial image to a left eye of an observer focused on the display area in a first viewing direction using a left observation beam path and the right partial image to the right eye in a second viewing direction using a right observation beam path. The system includes a vision assist through which the left and right observation beam paths pass. The vision assist sets a beam course for the left and right viewing observation beam paths wherein, starting from the left and right eyes in a direction toward the display area, a perpendicular distance between the left and right observation beam paths decreases to a minimum at a finite distance from the display surface.

Abstract: Light guiding slat for a sun protection system, wherein the light guiding slat is made of a band material equipped with a Fresnel reflector made by folding and/or bending the band material whereby the light guiding slat has a total height (G) which is so small that the light guiding slat has a form to be coilable with a coiling radius of 1 m or less without any substantial plastic deformation.

Abstract: An adjusting device for an illumination component of a microscope, an illumination device and a microscope containing the adjusting device are disclosed. The adjusting device for an illumination component of a microscope includes a first barrel component having an axis; a second barrel component received in the first barrel component, the second barrel component having an axis coincident with or parallel to the axis of the first barrel component, wherein the second barrel component houses and supports the illumination component; and a plurality of set screws each having a first end coupled to a side wall of the first barrel component at a corresponding coupling point and a second end pressed against a side wall of the second barrel component. With embodiments of the present invention, the structure is simpler and the cost is lower.

Abstract: An elastomeric tubular casing encompasses an elongate eyeglasses temple. The elastomeric tubular casing has a tube interior; a tube exterior; and tube first and second ends. The tube interior is configured to have higher than standard adhesion, and the tube exterior is configured to have lower than standard adhesion. Bevels may be provided adjacent to the tube first and second ends. The elastomeric tube in a first post-production orientation is rolled into a doughnut geometry, and adapted to unroll about the elongate eyeglasses temple to resume a generally cylindrical tubular geometry, and thereby encase a portion of the eyeglasses temple. The elastomeric tubular casing has an interior diameter approximately equal to an exterior circumference of the eyeglasses temple and the elastomeric tubular casing extends longitudinally co-extensively with the eyeglasses temple.

Abstract: A lens module includes a lens barrel and a lens group accommodated in the lens barrel. The lens group includes a first lens and a second lens, each of the first lens and the second lens including an arc part and a peripheral part around the arc part. A matching structure is formed by the peripheral part of the second lens and the peripheral part of the first lens. By virtue of the matching structure, the lens module of the present disclosure has a high concentricity.

Abstract: A spring plate of a lens driving module is provided, including an outer frame, an inner frame, an inner string and a hollow. The outer frame is configured to connect with a fixed part of the lens driving module. The inner frame is configured to connect with a movable part of the lens driving module. The inner string is extended from the outer frame and the inner frame and connected therebetween. The hollow is disposed on the inner string for dispersing stress.

Abstract: Present embodiments provide for an optical imaging lens. The optical imaging lens includes a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements and designing parameters satisfying at least two inequalities, the optical imaging lens shows better optical characteristics, increases the effective focal length, and narrows the angle of view while the total length of the optical imaging lens is shortened.

Abstract: A head-up display includes a concave mirror actuator that changes, based on external instructions, a reflection angle by which a concave mirror reflects display light. A drawing unit includes a beam generator, a scanner, an optical actuator, and a controller, The beam generator emits a beam, and the scanner scans the beam in two dimensions by moving a reflection surface to draw an image. The optical actuator changes an angle of incidence of when the beam is emitted to the scanner. The controller drives the optical actuator to change the angle of incidence such that display light distortions generated at the concave mirror are offset by display light distortions generated at the scanner.

Abstract: The disclosure is directed to a highly reflective multiband mirror that is reflective in the VIS-NIR-SWIR-MWIR-LWIR bands, the mirror being a complete thin film stack that consists of a plurality of layers on a selected substrate. In order from substrate to the final layer, the mirror consists of (a) substrate, (b) barrier layer, (c) first interface layer, (d) a reflective layer, (e) a second interface layer, (f) tuning layer(s) and (g) a protective layer. In some embodiments the tuning layer and the protective layer are combined into a single layer using a single coating material. The multiband mirror is more durable than existing mirrors on light weight metal substrates, for example 6061-Al, designed for similar applications. In each of the five layer types methods and materials are used to process each layer so as to achieve the desired layer characteristics, which aid to enhancing the durability performance of the stack.

Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens have negative refractive force, wherein both surfaces thereof can be aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens have negative refractive force, wherein both surfaces thereof can be aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens can have negative refractive force, wherein both surfaces thereof are aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: An optical device includes an optical assembly having a housing, a first end window, and a second end window. The first and second end window together with the housing provide an enclosed volume for a protected optical device including an optical material. A material for the end windows blocks essentially all non-pass band light having sufficient energy to generate absorption phenomena in the optical material while transmitting essentially all of operational wavelength light (pass band light) for the optical device. A material for the housing also blocks essentially all the non-pass band light from reaching the optical material.

Abstract: An optical scanner includes a polygonal mirror; a mirror for reflecting the beam from the polygonal mirror; an optical box having a cap and containing the mirror; a first mirror regulating portion in a direction of a normal line of the mirror, the first regulating portion being provided opposed to such a surface of the reflecting surface and a back surface as is closer to the cap; and a second mirror regulating portion in a beam sub-scanning direction, the second regulating portion being provided opposed to such a surface of the mirror as is closer to the cap; wherein the mirror has a plurality of apex lines, and the first regulating portion and the second regulating portion are disposed at positions which are remoter from the cap than the apex line that is closest to the cap, with respect to a direction perpendicular to a main scan direction.