Abstract: An image forming optical system characterized by comprising a positive first lens group, a negative second lens group, and third and subsequent lens groups having a positive composite refracting power, wherein the first lens group is composed of a cemented lens made up of one positive lens and one negative lens arranged in order from the object side, and the image forming optical system satisfies the following conditional expressions (1-1) and (2-1): 0.05<T1g/Flt<0.10??(1-1) 0.50<?gF<0.75??(2-1) where T1g is the thickness of the first lens group on the optical axis, Flt is the focal length of the entire image forming optical system at the telephoto end, and ?gF is the partial dispersion ratio (ng1?nF1)/(nF1?nC1) of the negative lens, where nd1, nC1, nF1, and ng1 are refractive indices of the negative lens respectively for the d-line, C-line, F-line, and g-line.

Abstract: This invention provides an optical photographing lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side surface, at least one of the object-side and image-side surfaces thereof being aspheric; a second lens element with negative refractive power having a concave image-side surface; a third lens element with positive refractive power having a concave object-side surface and a convex image-side surface; and a fourth lens element with negative refractive power having a concave image-side surface on which at least one inflection point is formed, the object-side and image-side surfaces thereof being aspheric; wherein a stop is disposed between an imaged object and the first lens element and an electronic sensor is disposed at an image plane for forming images of the imaged object; and wherein the optical photographing lens assembly further comprises another stop disposed between the second and fourth lens elements.

Abstract: In an objective lens for an endoscope, the full angle of view exceeds 120 degrees, and a most-object-side surface of the objective lens is spherical. Further, the following condition formulas (1) and (2) are satisfied: 0.7<?8/?10<0.8??(1); and 5<R1/f<15??(2), where ?10: half angle of view corresponding to a maximum image height; ?8: half angle of view corresponding to an image height that is 80% of the maximum image height; R1: curvature radius of the most-object-side surface; and f: focal length of the entire system of the objective lens.

Abstract: A method of forming a mirrored bent cut glass shape includes bending a flat sheet of glass to establish a curved sheet of glass. A machine vision system determines a surface profile of the curved sheet of glass, and a computer numerical controlled cutting tool is positioned at the curved sheet of glass and its cutting wheel is maintained at or close to 90 degrees to the tangential plane of the curved sheet of glass. At least one of (a) the cutting wheel and (b) the curved sheet of glass is controlled in three dimensions to cut a bent cut glass shape from the curved sheet of glass, and such controlling is, at least in part, responsive to the surface profile of the curved sheet of glass. A mirror reflector is established at a surface of the bent cut glass shape to form a mirrored bent cut glass shape.

Abstract: An electronic imaging apparatus includes a zoom optical system having, in order from the object side, a first lens unit with positive power, a second lens unit with negative power, and an aperture stop, in which the first lens unit is composed of a single positive power unit and the second lens unit has a single negative lens element located at the most object-side position, both surfaces of which are concave, and a positive lens component located at the most image-side position; an electronic image sensor located on the image side of the zoom optical system; and an image processing section electrically processing image data obtained by the electronic image sensor to change the form thereof.

Abstract: An autofocus imaging apparatus (200) for three-dimensional imaging on a surface of a flexible media mounted on a cylindrical drum (104) includes a carriage (210) which moves parallel to a surface of the drum and an imaging stage (208) mounted on the carriage. The imaging stage includes a displacement sensor (112) for measuring a distance to the surface of the flexible media; imaging optics (216) for producing a three-dimensional image on the flexible media; and an autofocus drive (220) for changing a focus of the imaging optics. Encoders (256, 260) provide data on the drum and carriage position. A controller (116) receives and processes data from the displacement sensor and the encoders. A computer (236) receives data from the controller, processes controller data, and transmits instructions to the controller. The controller receives computer instructions and transmits focus commands to the autofocus drive or the imaging stage.

Abstract: A package structure of flexible display device includes a flexible opto-electronic display panel, a first barrier layer and a second barrier layer. The flexible opto-electronic display panel includes a backplane, a flexible frontplane, and a display media layer. The display media layer is disposed between the flexible frontplane and the backplane, where the display media layer is substantially corresponding to a display region of the backplane, and at least one side of the display media layer aligns with one corresponding side of the backplane. The first barrier layer is disposed on a first surface of the flexible frontplane, where the flexible frontplane, the display media layer and the first barrier layer expose a bonding region of the backplane. The second barrier layer is disposed on a second surface of the backplane.

Abstract: An image sensor having a surface intended to be illuminated and pixels, each pixel including a photosensitive area formed in an active area of the substrate, at least one first pixel including a first microlens located on the surface, the sensor including at least one second pixel including a transparent portion forming a pedestal located at least partly on the surface and a second microlens at least partially covering the pedestal.

Abstract: A zoom lens unit, including in order from an object side to an image side: a first lens group having a positive refracting power; a second lens group having a negative refracting power; a third lens group having a positive refracting power; and a fourth lens group having a positive refracting power, an aperture stop being disposed between the second and the third lens groups, and the third lens group having a positive lens made of an optical glass material which satisfies the following formulae: (1) 1.52<nd<1.62; (2) 65.0<?d<75.0; (3) 0.015<Pg,F?(?0.001802×?d+0.6483)<0.050, where, nd represents a refractive index, ?d represents an Abbe number, and Pg,F represents a partial dispersion ratio being defined as follows: Pg,F=(ng?nF)/(nF?nC), where, ng, nF and nC represent refractive indexes for g line, F line and C line, respectively.

Abstract: An imaging lens is provided and includes: in order from the object side, a negative first lens, a negative second lens, a positive third lens, a stop, and a positive fourth lens. In the lens, each of the second lens, the third lens, and the fourth lens has at least one aspheric surface, and an Abbe number of a material of the third lens at the d-line is 35 or less. In addition, the imaging lens satisfies the following Conditional Expression (1): ?0.2<(R3+R4)/(R3?R4)<0.2??(1) where R3 is a paraxial radius of curvature of the object side surface of the second lens, and R4 is a paraxial radius of curvature of the image side surface of the second lens.

Abstract: A zoom lens for an imaging optical device that includes a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; and a fourth lens group having a positive refractive power, arranged sequentially from an object side to an image side, and wherein each of the distances between the first lens group, the second lens group, the third lens group, and the fourth lens group varies during zooming, and wherein the first lens group comprises a doublet lens consisting of a negative lens and a positive lens, and the third lens group comprises a first positive lens, a second positive lens, a negative lens, and a third positive lens.

Abstract: An zoom projection lens includes, in this order from the screen-side to the SLM-side thereof, a negative lens group and a positive lens group, and satisfies: ?2<?1/?2<?0.5, ?2<EFL1/EFL(W)<?1.5, 1.5<EFL2/EFL(W)<1.75, ?1.2<EFL1/EFL(T)<?1, 0.8<EFL2/EFL(T)<1.2, 0.5<EFL(W)/BFL(W)<0.6, 0.68<EFL(T)/BFL(T)<0.75, 6.2<TTL(W)/EFL(W)<6.5, and 3.5<TTL(T)/EFL(T)<3.6; where ?1 and ?2 represent refractive powers of the negative lens group and the positive lens group respectively, EFL(W), EFL(T), EFL1 and EFL2 represent effective focal lengths of the projection lens in a wide-angle state and in a telephoto state, the negative lens group, and the positive lens group respectively, TTL(W) and TTL(T) represent overall lengths of the projection lens in the wide-angle state and in the telephoto state respectively, and BFL(W) and BFL(T) represent rear focal lengths of the projection lens in the wide-angle state and in the telephoto state respectively.

Abstract: A super wide angle lens is a super wide angle lens which is of high-resolution and whose size, weight and cost can be reduced. It employs a four-group five-element constitution in which in the order from an object side, a meniscus single lens having a negative power, a single lens having a negative power, a single lens having a positive power, and a cemented lens having a positive power are included. The lenses excluding the meniscus single lens are plastic lenses and seven lens surfaces, that are a third surface, a fourth surface, a fifth surface, a sixth surface, a eighth surface, a ninth surface and a tenth surface, are aspheric.

Abstract: Embodiment of invention discloses a system and a method for determining a three-dimensional (3D) location of a folding point of a ray between a point in a scene (PS) and a center of projection (COP) of a camera of a catadioptric system. One embodiment maps the catadioptric system, including 3D locations of the PS and the COP on a two-dimensional (2D) plane defined by an axis of symmetry of a folding optical element and the PS to produce a conic and 2D locations of the PS and COP on the 2D plane, and determines a 2D location of the folding point on the 2D plane based on the conic, the 2D locations of the PS and the COP. Next, the embodiment determines the 3D location of the folding point from the 2D location of the folding point on the 2D plane.

Abstract: A zoom lens system, in which chromatic aberration, spherical aberration, and coma may be excellently corrected in a balanced manner so as to obtain excellent optical performance over an entire zoom range, includes, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; and a rear lens group including a lens unit having a positive refractive power, in which: at least one of the first lens unit and the second lens unit is moved for zooming so that an interval therebetween at a telephoto end is larger than an interval at a wide angle end; the first lens unit includes at least one negative lens; and an Abbe number (?d1n) and a partial dispersion ratio (?gF1n) of a material of the at least one negative lens are appropriately set.

Abstract: An imaging lens is provided and includes: in order from an object side thereof, a first lens of a negative lens having a concave surface on an image side thereof and having at least one aspheric surface; a second lens of a positive lens having at least one aspheric surface; a stop; and a third lens of a positive lens having a convex surface on the image side thereof and at least one aspheric surface. The following Conditional Expressions (1) and (2) are satisfied. 1.5<vd3/vd2??(1) 0.0<|f1/f23|<0.5??(2) In which vd2 represents an Abbe number of the second lens at the d-line, vd3 represents an Abbe number of the third lens at the d-line, f1 represent a focal length of the first lens, and f23 represents a composite focal length of the second and third lenses.

Abstract: An analog-to-digital converter converting an analog input signal into a digital signal includes a comparator comparing a reference signal with an input signal and, if the reference signal matches the input signal, inverting an output; and a counter counting a comparison time. The counter includes flip flops that perform serial input/output. An input and an output of the counter are interconnected. The counter operates in a counter mode and a shift register mode. In the counter mode, a data output of each flip flop is supplied to a clock input of the next flip flop, and, if the output of the comparator is at a predetermined level, the counter functions as a counter synchronized with a counter clock signal. In the shift register mode, the flip flops are cascade-connected, and the counter functions as a shift register synchronized with a shift register clock signal.

Abstract: A lens unit includes a first lens having positive power, a second lens having positive power, an aperture stop, a third lens having negative power, and a fourth lens. The first lens, the second lens, the aperture stop, the third lens, and the fourth lens are arranged in order from an object side toward an image side.

Abstract: A The CMOS image sensor includes a pixel array including pixels arranged in a matrix of rows and columns and a row selection unit configured to generate selection signals for simultaneously or concurrently selecting at least two rows from the rows of the pixel array in response to a received row address. An analog-to-digital conversion unit is configured to convert pixel data output from the at least two rows selected from the pixel array into a digital video signal and output the digital video signal. The pixel array outputs the pixel data in response to the selection signals.

Abstract: A solid-state image capturing apparatus includes a pixel array in which a plurality of pixels are arranged in a matrix, where each of the pixels includes: a photodiode for obtaining a signal charge by a photoelectric conversion of an incident light; and an amplifying transistor for the signal charge obtained at the photodiode, and where the amplifying transistor is configured in such a manner that a gate area of the amplifying transistor is defined to be larger than a gate area of other transistors that configure the pixel.