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

Abstract: 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, a sixth lens element and seven lens element positioned in an order from an object side to an image side. Through the arrangement of convex or concave surfaces of the seven lens elements, the length of the optical imaging lens may be shortened while providing better optical characteristics and imaging quality.

Abstract: A head-up display apparatus is provided with an image emission mechanism that emits image display light, and a combiner arranged in front of an eye (or eyes) of a pilot to introduce the image display light to the eye(s) of the pilot. The head-up display apparatus is equipped with a light guide including first and second plane arranged in parallel planes, an incidence plane including a first reflector and an emission plane including a second reflector disposed between the first and second planes. The light guide is configured to reflect image display light from the emission mechanism to the combiner.

Abstract: A marker includes a plurality of convex lenses each including a plurality of convex lenses each including a convex surface part on a front side; and a plurality of patterns formed on a rear surface of the plurality of convex lenses, each pattern corresponding to the convex surface part. Each of the plurality of patterns is composed of optically distinguishable first and second parts formed by a surface shape of the rear surface. The second part is disposed on each corresponding convex surface part. A distance between optical axes of the convex lenses which are adjacent is constant. A distance between centers of the second parts which are adjacent is different from the distance between the optical axes.

Abstract: A display panel includes a first substrate and a second substrate which are arranged opposed to each other. The space between the first substrate and the second substrate is separated into a plurality of sub-pixel regions. Within each sub pixel region, a first electrode, a first fluid layer, a second fluid layer, a hydrophobic dielectric layer and a second electrode are arranged in this order. The first fluid layer is made of hydrophilic liquid. The second fluid layer is made of ink. When no electric field is applied between the first electrode and the second electrode, the ink spreads over the surface of the hydrophobic dielectric layer. When an electric field is applied between the first electrode and the second electrode, the ink aggregates to expose the hydrophobic dielectric layer.

Abstract: The present invention discloses a lens module, which includes a base, an elastic element, an optical lens, and a receiving element. The base includes a bottom portion and an extension portion extending vertically along the bottom portion. A stepped surface is formed where the bottom portion is connected with the extension portion. An internal thread is formed on an inner wall of the extension portion. The elastic element is disposed on the stepped surface. The receiving element is used for receiving the optical lens. The receiving element includes a threaded portion and a receiving portion connected with the threaded portion. The threaded portion is provided with an external thread. The external thread matches with the internal thread. The external thread connects the internal thread by threading to connect the receiving element with the base by threading. The elastic element abuts against the threaded portion to provide a pretightening force for the receiving element.

Abstract: A zoom lens system includes, in the following order from an object side toward an image side, a first lens group with negative power, a second lens group with positive power, a third lens group with negative power, and a fourth lens group with positive power. The first lens group includes, in the following order from the object side toward the image side, a first lens element having a negative meniscus shape with a concave surface facing the image side, a second lens element having a negative meniscus shape with a concave surface facing the image side, a third lens element with a concave surface facing the image side, a fourth lens element with a convex surface facing the object side, and a fifth lens element with a concave surface facing the object side. The third lens element and the fourth lens element compose a cemented lens.

Abstract: An optical sensor includes a flexible substrate, a light emitting element, and a light receiving element. The light emitting element and the light receiving element are mounted on element mounting portions and connected to element connection portions by wires. The optical sensor also includes through wirings extending through the substrate. Each through wiring is bonded to the element mounting portion or the element connection portion. The through wirings include a heat radiation through wiring that is located immediately below the light emitting element and bonded to the element mounting portion on which the light emitting element is mounted. The optical sensor further includes light shielding materials and encapsulation resins for surrounding and encapsulating the light emitting element and the light receiving element, respectively.

Abstract: Thin-film devices, for example electrochromic devices for windows, and methods of manufacturing are described. Particular focus is given to methods of patterning optical devices. Various edge deletion and isolation scribes are performed, for example, to ensure the optical device has appropriate isolation from any edge defects. Methods described herein apply to any thin-film device having one or more material layers sandwiched between two thin film electrical conductor layers. The described methods create novel optical device configurations.

Abstract: An electrowetting display comprises a support plate on which individual electrowetting pixels separated from one another by pixel walls are formed. The individual electrowetting pixels include an electrode layer on the support plate, a dielectric barrier layer on the electrode layer, a hydrophobic layer on the dielectric barrier layer, and quantum dots between the hydrophobic layer and the electrode layer. The quantum dots may utilize blue or white light illuminating the pixels to emit longer-wavelength colors such as red and green. Such a feature may enhance or replace functionality of color filters.

Abstract: An image lens assembly system includes, 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. The first lens element with negative refractive power has a convex object-side surface. The second lens element has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element has refractive power. The sixth lens element with refractive power is made of plastic material, wherein at least one surface of the sixth lens element is aspheric. The seventh lens element with refractive power made of plastic material has a concave image-side surface changing from concave in a paraxial region to convex in a peripheral region, and at least one surface thereof is aspheric.

Abstract: A lens driving device is provided, including a frame, a lens holder, and a dust-proof structure. The frame includes a top casing and a bottom base. The lens holder carries a lens and is movably disposed in the frame and has a first anti-twist structure. A second anti-twist structure corresponding to the first anti-twist structure is formed on a surface of the bottom base. The dust-proof structure is formed on the surface of the bottom base to prevent dust from entering a receiving hole in the bottom base, and the receiving hole is used for receiving an image sensor.

Abstract: An optical lens assembly including at least two lens elements and an adhesive is provided. The lens elements are stacked disposed, and each of the lens elements includes an optical portion allowing imaging rays to pass through and an assembly portion configured to fix the lens. Each of the assembly portions of two adjacent lens elements includes an adhesive surface, and the adhesive surfaces are disposed opposite to each other to form an adhesive gap. The adhesive is distributed in the adhesive gap and adhered to fix the adhesive surfaces disposed opposite to each other. The adhesive surface of one lens element extends outwardly towards a direction away from an optical axis of the lens element to form an adhesive entering tapered surface configured to guide the adhesive into the adhesive gap.

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, and a fifth lens. At least one lens among the first to the fifth lenses has positive refractive force. The fifth 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 fifth lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

Abstract: A lens driving device is provided, the lens driving device includes: a housing; a bobbin disposed at an inner side of the housing; a support member coupled to the bobbin and the housing; and a sensor sensing a position of at least one of the bobbin and the housing, wherein the support member may include a first support unit, and a second support unit disposed not parallel to the first support unit, wherein the sensor may be disposed more adjacent to the first support unit than to the second support unit, and wherein an elastic modulus of the first support unit may be lower than an elastic modulus of the second support unit.

Abstract: Window units, for example insulating glass units (IGU's), that have at least two panes, each pane having an electrochromic device thereon, are described. Two optical state devices on each pane of a dual-pane window unit provide window units having four optical states. Window units described allow the end user a greater choice of how much light is transmitted through the electrochromic window. Also, by using two or more window panes, each with its own electrochromic device, registered in a window unit, visual defects in any of the individual devices are negated by virtue of the extremely small likelihood that any of the visual defects will align perfectly and thus be observable to the user.

Abstract: A spatial light modulator is provided that uses light modulation structures at each pixel to employ electromagnetic interference to modulate the intensity and/or phase of the transmitted and/or reflected light from the pixel. The use of the modulation structures enables the independent and dynamic changing of the intensity and/or phase of the reflected and/or transmitted light at each pixel. The modulation structure can incorporate a plate with a semi-reflective surface that is separated from a substrate having either a reflective or semi-reflective surface. The modulation structure can have actuators positioned between the substrate and the plate to control the separation distance between the plate and the substrate. By controlling the separation distance, the amount of light reflected by and/or transmitted through the surfaces of the plate and substrate can be controlled. The separation distance can be related to the resulting interference applied to particular wavelengths of the light.

Abstract: The invention discloses a four-piece optical lens for capturing image and a four-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens with refractive power; a second lens with refractive power; a third lens with refractive power; and a fourth lens with refractive power; and at least one of the image-side surface and object-side surface of each of the four lenses are aspheric. The optical lens may increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: An optical imaging system includes a reflector, a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element from an object side to an image side in order along an optical axis. The first lens element to the fifth lens element each include an object-side surface and an image-side surface. The object-side surface of the first lens element has a convex portion in a vicinity of the optical axis. The material of the second lens element is plastic material. The image-side surface of the third lens element has a convex portion or a concave portion in the vicinity of the optical axis. At least one of the object-side surface and the image-side surface of the fourth lens element is an aspheric surface. The object-side surface and the image-side surface of the fifth lens element are aspheric surfaces.

Abstract: A lens barrel in which a lens can be moved in a direction parallel to an optical axis includes: a first frame having a cam follower and a cam follower base that holds the cam follower; and a second frame that has a cam groove engageable with the cam follower. The first frame and the second frame are moved relatively to each other along the optical axis. The cam follower base has a first end connected to the main body of the first frame via at least one thin portion, and a second end not connected to the main body. The thin portion is formed such that a thickness of the thin portion in a radial direction of the lens barrel is smaller than that of the cam follower base.