Abstract: An electrowetting display device includes a first base substrate, a plurality of first electrodes disposed on the first base substrate and positioned to respectively correspond to positions of a plurality of pixels, a partition wall disposed on the first base substrate to partition the pixels, a second electrode disposed on the partition wall and including a plurality of openings, a second base substrate facing the first base substrate, and an electrowetting layer disposed between the first base substrate and the second base substrate, the electrowetting layer respectively being moved by voltages respectively applied to the first electrode and the second electrode.

Abstract: A combination of a focusing element, and a filtering element which naturally adjusts the cross-sectional area of a beam of electromagnetic radiation passed through the focusing element as a function of wavelength, optionally as an element of an ellipsometer or polarimeter system.

Abstract: An imaging lens substantially consisting of six lenses, composed of a first lens having a positive refractive power and a convex surface on the object side, a second lens having a negative refractive power and a concave surface on the image side, a third lens having a positive refractive power and a convex surface on the object side, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power and a concave surface on the image side, and a sixth lens having a negative refractive power with the image side surface having an aspherical shape which is concave on the image side near the optical axis and convex in a peripheral region.

Abstract: The color reflected by an interferometric modulator may vary as a function of the angle of view. A range of colors are thus viewable by rotating the interferometric modulator relative to an observer. By placing a textured layer between an observer and an interferometric modulator, a pattern which includes the range of colors may be viewed by the observer, and the range of colors may thus be viewable from a single viewing angle.

Abstract: This disclosure provides systems, methods and apparatus for an electromechanical systems reflective display device. In one aspect, an electromechanical systems display device includes a reflective layer and an absorber layer. The absorber layer is spaced apart from the reflective layer to define a cavity between the absorber layer and the reflective layer. The absorber layer is capable of transmitting light into the cavity, absorbing light, and reflecting light, and includes a metal layer. A plurality of matching layers are on a surface of the absorber layer facing away from the cavity, the plurality of matching layers including a first matching layer disposed on the absorber layer and a second matching layer disposed on the first matching layer.

Abstract: A zoom lens system includes a negative first lens group, positive second and third lens groups, wherein upon zooming from the short to the long focal length extremities, the distance between the first and second lens groups decreases and the distance between the second and third lens groups changes. The second lens group includes a biconvex positive lens element with an aspherical surface on each side, and a negative meniscus lens element with an aspherical surface, and a concave surface on the image side. The following condition (1) is satisfied: 5<m2t/m2w<8??(1), wherein m2t and m2w designate the lateral magnifications of the second lens group at the long and short focal length extremities, respectively, when focused on an object at infinity.

Abstract: An image processing apparatus capable of suppressing color fringing in a color image further effectively by image processing. A determination unit determines a region in which signal levels for a color plane in a color image produced by photoelectric conversion of an optical image of a subject exhibit a monotonic increase or a monotonic decrease, as a color fringing region in which color fringing occurs. An estimation unit estimates an intensity of the color fringing in the color fringing region determined by the determination unit. A removal unit deducts an estimate value of the intensity of the color fringing estimated by the estimation unit from the intensity of the color fringing in the color fringing region.

Abstract: This disclosure provides an image capturing lens system, in order from an object side to an image side comprising: a first lens element with positive refractive power having a convex object-side surface and a concave image-side surface; a second lens element with positive refractive power; a third lens element with positive refractive power; and a fourth lens element with positive refractive power having a convex object-side surface, a concave at a paraxial region and convex at a peripheral region image-side surface, and both of the object-side and image-side surfaces thereof being aspheric; wherein the lens elements of the image capturing lens system with refractive power are the first lens element, the second lens element, the third lens element and the fourth lens element.

Abstract: A zoom lens includes: a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, and a fourth lens group having positive refractive power, the first to fourth lens groups being arranged in order from an object side, in which zooming is performed through varying a distance between adjacent lens groups of the first to fourth lens groups, and the fourth lens group includes a first positive lens, a first negative meniscus lens, and a cemented lens which are arranged in order from the object side, the cemented lens being configured of a second negative meniscus lens with a convex surface facing the object side and a second positive lens.

Abstract: Recent invention of longitudinally chirped volume Bragg gratings has dramatically changed a design of high power femtosecond lasers. Replacing of bulky pairs of conventional surface gratings with compact and robust chirped volume Bragg gratings for stretching and compression of laser pulses in chirped-pulse-amplification systems enabled decrease of size and weight of those systems by several times. The methods and devices enable substantial increase of stretching time and compression to shorter pulses, enhancement of stretched and compressed beams quality by stationary or dynamic shaping of gratings, and shaping of laser pulses in both temporal and spectral domains.

Abstract: An optical system WL has, in order from an object, a first lens group G1 having negative refractive power and a second lens group G2 having positive refractive power, wherein the first lens group G1 is fixed and the second lens group G2 moves upon focusing from an object at infinity to an object at a finite distance, and the second lens group G2 is formed of a front group G2a located closer to the object than an aperture stop S disposed in the second lens group G2, and a rear group G2b located closer to an image than the aperture stop S.

Abstract: A photographing lens assembly 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 and a fifth lens element. The first lens element with positive refractive power has an object-side surface being convex at a paraxial region thereof. The second lens element has negative refractive power. The third lens element has refractive power. The fourth lens element with positive refractive power has an object-side surface being concave at a paraxial region thereof and an image-side surface being convex at a paraxial region thereof. The fifth lens element with negative refractive power has an image-side surface being concave at a paraxial region thereof and being convex at a peripheral region thereof, wherein the fifth lens element is made of plastic material and has at least one surface being aspheric.

Abstract: A wide-angle image capturing lens assembly 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 and a fifth lens element and each of the first through fifth lens elements is single and non-cemented. The first lens element with negative refractive power has a concave image-side surface. The second lens element with refractive power has a concave object-side surface and a convex image-side surface. The third lens element has positive refractive power. The fourth lens element has negative refractive power, wherein at least one of an object-side surface and an image-side surface of the fourth lens element is aspheric. The fifth lens element with positive refractive power has a convex image-side surface, wherein at least one of an object-side surface and the image-side surface of the fifth lens element is aspheric.

Abstract: There are provided an inner focus lens consisting of a first lens group, an aperture diaphragm, and a second lens group in order from an object side. The first lens group has a positive first lens element, a positive second lens element, and a negative third lens element, or has a positive first lens element, a positive second lens element, a positive third lens element, and a negative fourth lens element, in order from the object side. One lens element in the second lens group is moved with respect to an image surface in focusing. The second lens group has five or more lens elements, and has a configuration including a negative lens element, a positive lens element, and a positive lens element in order from the object side.

Abstract: There are provided an inner focus lens consisting of a first lens group, an aperture diaphragm, and a second lens group in order from an object side. The first lens group has a positive first lens element, a positive second lens element, and a negative third lens element; or a positive first lens element, a positive second lens element, a positive third lens element, and a negative fourth lens element, in order from the object side. One lens element in the second lens group is moved with respect to an image surface in focusing, some of the lens elements thereof are moved in a direction perpendicular to an optical axis. The inner focus lens satisfies 0.2<|fF/fO|<3.0 (fF: a focal distance of a focus lens, fO: a synthetic focal distance of the lens elements moving in the direction perpendicular to the optical axis).

Abstract: An optical system includes a first lens unit fixed during a focusing operation and having a positive refractive power, a second lens unit moving in an optical axis direction during the focusing operation and having a negative refractive power, a third lens unit positioned at the image side relative to the second lens unit and having a positive or negative refractive power, the first lens unit is configured by first, second, and third partial lens units, the first partial lens unit is configured by two positive lens components, the second partial lens unit is configured by one cemented lens having a negative combined refractive power, the third partial lens unit is positioned between the second partial lens unit and the second lens unit and has a positive refractive power as a whole, and each lens unit is configured so as to meet an appropriate condition.

Abstract: To realize a memory effect in an optical device using the electro wetting effect. An optical device includes: first and second substrates placed opposite each other; a partition provided therebetween; a first electrode provided on one side of the first substrate, at least a part thereof overlapping with a region surrounded by the partition in a plan view; second and third electrodes provided on one side of the second substrate and which are respectively placed opposite the first electrode across the region surrounded by the partition; a smoothing layer provided on one side of the second substrate and which covers the second and third electrodes; and first and second fluid, which are incompatible, disposed in the region surrounded by the partition. The first fluid is made of a liquid body possessing polarity or conductivity, and the second fluid is made of a liquid body containing a liquid-crystalline material.

Abstract: A solid-state imaging device includes pixel cells that are formed on a substrate having a first substrate surface side, on which light is irradiated, and a second substrate surface side, on which elements are formed, and separated by an adjacent cell group and an element separation layer for each of the pixel cells or with plural pixel cells as a unit. Each of the pixel cells has a first conductive well formed on the first substrate surface side and a second conductive well formed on the second substrate surface side. The first conductive well receives light from the first substrate surface side and has a photoelectric conversion function and a charge accumulation function for the received light. A transistor that detects accumulated charges in the first conductive well and has a threshold modulation function is formed in the second conductive well.

Abstract: A driver vision field extender uses flexible vinyl Fresnel-type prism lens material with substantially parallel horizontal straight linearly extending prism lines. The parallel lines permit wide side by side views without substantial distortion. As the driver vision field extender is intended to be positioned contiguously along the windshield, the driver vision field extender after installation preferably exhibits a concave shape acting to focus the light defining and delineating overhead objects towards front-seated passengers such as the driver.

Abstract: A spatial light modulator comprises a solid-state chiral material disposed between electrodes such that the polarization direction of the polarized light incident thereto can be controlled through an electrical field established between the electrodes.