Abstract: A method of manufacturing a light-emitting device includes forming a wave length conversion portion on a light-emitting element. The light emitting device includes a light-emitting element which emits light of a predetermined wavelength and a wavelength conversion portion which includes a fluorescent substance which is excited by the light emitted from the light-emitting element so as to emit fluorescence of a wavelength different from the predetermined wavelength, which wavelength conversion portion is formed by including the fluorescent substance, a layered silicate mineral, and an organometallic compound.

Abstract: Provided is a device for manufacturing an optical film having satisfactorily reduced thickness unevenness, by using a melt-casting film forming method, which device includes a casting die for discharging a molten film-forming material including a thermoplastic resin into a film-like shape; a pair of a first rotation roll and a second rotation roll between which the discharged film-shaped molten article is pinched to be cooled and solidified to make the film shaped molten article; and two pairs of wind shield plates each of which pairs are arranged between the shaft-direction ends of the first and second rotation rolls and an end part in the width-direction of the film-shaped molten article, wherein the wind shield plates are placed approximately perpendicular to the surface of the film-shaped molten article, and wherein each pair of the wind shield plates are placed approximately in parallel.

Abstract: The purpose of the present invention is to provide: a retardation film which uses a low-substituted cellulose ester and has improved retardation after saponification and improved wet heat stability of internal haze; a polarizing plate which uses the retardation film; and a liquid crystal display device. An optical film of the present invention contains a cellulose ester and a compound represented by general formula (1), and is characterized in that the compound has an average degree of substitution within the range of 3.0-6.0 and contains a component having a degree of substitution of 4 or less in an amount of 30-80% by mass (inclusive). (In the formula, R1-R8 each represents a substituted or unsubstituted alkylcarbonyl group or a substituted or unsubstituted allylcarbonyl group, and R1-R8 may be the same as or different from one another.

Abstract: A wafer lens member producing method includes post-curing lens portions made of a light-curing resin formed on at least one face of a substrate so as to promote curing of the light-curing resin. The post-curing includes first post-curing and second post-curing. The first post-curing performs heating at a first post-curing temperature, which is a glass transition temperature of the light-curing resin to the glass transition temperature+100° C., for 30 minutes to two hours. The second post-curing performs heating at a second post-curing temperature, which is lower than the glass transition temperature, and lower than the first post-curing temperature by 25° C. or more, for three hours to six hours.

Abstract: Degradation of a three-dimensional measurement accuracy of a stereo camera device that takes an image of an object in a wide wavelength band is suppressed.

Abstract: Provided is a film mirror for solar heat generation including a metal reflective layer and at least one resin layer provided on an incident side of the metal reflective layer. The metal reflecting layer includes a silver layer. The at least one resin layer contains a triazine-based UV absorber by 1% by mass of the resin and a UV absorber having an absorption maximum in a UV-A region (320 to 400 nm) by 1% by mass of the resin. A total content of the UV absorbers in the resin layer(s) is 15% or less by mass of the resin.

Abstract: An imaging device is provided with an imaging element. The imaging element has a sensitive wavelength region including an infrared wavelength region, and selectively including a visible wavelength region, and is composed of at least three types of pixels having spectral sensitivities different from each other. The imaging device generates a luminance signal including an infrared wavelength component, a color-difference signal including a visible wavelength component, and a visible luminance signal as a luminance signal in the visible wavelength region, from original image data including at least three types of original image components obtained by an imaging operation by the imaging element; and generates a color image based on a low frequency component in the luminance signal and in the color-difference signal, and based on a low frequency component in the visible luminance signal.

Abstract: A film mirror for reflecting sunlight includes a polymer film substrate, a reflective layer including silver coating, and a protective coating layer in sequence from the incident side of sunlight. The reflective layer is formed by coating and calcining (firing) a coating liquid containing a silver complex compound.

Abstract: A lens barrel and a lens unit of the present invention each include a cam drum having a cam groove, a lens holding frame for holding a moving lens group, and a cam follower installed on an outer periphery of the lens holding frame. The cam groove has two groove side walls, and an inclined wall that extends outward in a radial direction of the cam drum from one of the two groove side walls to the other thereof, and the cam follower has a contact member that contacts the inclined wall and a cam follower main unit respectively, and a biasing member that biases the contact member outward in the radial direction.

Abstract: A zoom lens system used in a spectrum region including visible light has movable lens groups moved for zooming, and has, in a movable lens group, a negative lens element made of a material fulfilling the conditional formulae Vd<55 and 0.0018×Vd+P<0.65 and, in a movable lens group, a positive lens element made of a material fulfilling the conditional formulae 60<Vd, 0.645<0.0018×Vd+P, and 9×10?6<dN/dT, where Vd is the Abbe number for a d-line; P=(Ng?NF)/(NF?NC); Ng, NF, and NC are the refractive indices for the g-, F-, and C-lines respectively; and dN/dT is the variation rate in refractive index accompanying variation in room temperature. The negative and positive lens elements move in the same direction during zooming.

Abstract: A zoom lens system has, in order from the enlargement side, a first lens group that remains stationary during zooming and that has a negative optical power and a plurality of lens groups that move during zooming. The first lens group includes three lens groups each having a negative optical power, namely a 1a-th lens group, a 1b-th lens group, and a 1c-th lens group. The 1a-th lens group remains stationary during focusing and includes at least one positive lens element. The 1b-th lens group moves toward the reduction side during focusing from infinity to a close distance. The 1c-th lens group moves toward the enlargement side during focusing from infinity to a close distance.

Abstract: Provided is a cellulose acetate film which has excellent retardation properties and exhibits low haze even under high-temperature and high-humidity conditions and which, in an alkaline saponification step, causes little dissolution of the film itself or additives in a saponifying liquid. The cellulose acetate film is characterized by comprising: a cellulose acetate which has an acetyl substitution degree of 2.0 to 2.5; and 5 to 15% by mass (relative to the cellulose acetate) of a component which contains a compound represented by general formula (1) wherein m is 0 and a compound represented thereby wherein in is more than 0 at a ratio of 45:55 to 0:100.

Abstract: A first lens unit having negative power, a second lens unit having positive power, a third lens unit having negative power, and a fourth lens unit having positive power are disposed in this order from an object side. At least the first lens unit to the third lens unit move to change intervals between lens units so that magnification is varied. The second lens unit has at least one air interval inside and is split into two lens units with a boundary of an air interval closest to an image side in the second lens unit, which includes a second-a lens unit on the object side and a second-b lens unit on the image side, and the second-b lens unit is moved in a plane substantially perpendicular to an optical axis for damping vibrations.

Abstract: Provided is a zoom lens including a first lens group having negative refractive power, a second lens group having positive refractive power, a third lens group having negative refractive power, and a fourth lens group having positive refractive power. The first lens group contains a reflective optical element that bends the light path. In order from the object side, the second lens group comprises a positive 2p1 lens, a negative 2n lens, and a positive 2p2 lens. The third lens group comprises a single negative lens. Letting n2n be the index of refraction of the 2n lens, n2p2 be the index of refraction of the 2p2 lens, ?2p2 be the Abbe number of the 2p2 lens, and ?2n be the Abbe number of the 2n lens, 0.30<n2n?n2p2<0.50 and 30<?2p2??2n<60.

Abstract: A single-focal-length imaging lens system achieves focusing by, while keeping first and third lens groups stationary relative to the image plane, moving a second lens group along the optical axis. The second lens group includes a positive lens element. The third lens group includes an aspherically shaped lens element having an inflection point at a position other than the intersection with the optical axis. The first and second air lenses formed by the intervals between the first and second and between the second and third lens groups have negative and positive refractive powers respectively. The conditional formula 0?|Fi1/Fi2|?|Fm1/Fm2|?10 is fulfilled (Fi1 and Fi2 representing the focal lengths of the first and second air lenses, respectively, when focusing on the infinite object distance; Fm1 and Fm2 representing the focal lengths of the first and second air lenses, respectively, when focusing on the closest object distance).

Abstract: An imaging device having an optical imaging system which has a parallel plate which is transparent at least in a visible light region, is joined by adhesives and is held on a holding member, wherein the holding member including: an opening section which is provided in order to pass light rays from the optical imaging system; a holding surface for holding a periphery of the parallel plate, formed around the opening section in a square shape, and intersecting perpendicularly to an optical axis of the optical imaging system; a side wall which is provided to stand parallel to the optical axis at an outside with respect to the opening section of the holding surface; and an adhesive collecting section which is arranged in each of four corners of the holding surface and is hollowed from the holding surface.

Abstract: An image pickup lens has a configuration of five lenses whose aberrations are corrected favorably despite its compactness compared to a conventional type.

Abstract: Disclosed are a driving mechanism and a driving device to which durable shape memory alloy (SMA) is applied and that can operate normally even in a high temperature environment. Also disclosed is a method of manufacturing such a driving device. In the driving mechanism, the driving device, and the method of manufacturing the driving device, building tension of the SMA is adjusted in advance so as to balance with bias force during supplying of a predetermined amount of electricity to the SMA after all members are integrated together.

Abstract: Disclosed is a method of manufacturing a polarizing plate safe in operation, less burdensome on the environment, and with excellent adhesion to a polarizer, also disclosed are a polarizing plate manufactured using said method, and a liquid crystal display device using said polarizing plate. In the method of manufacturing a polarizing plate, a polarizing plate is manufactured in which a protective film which is hydrophilized by alkali saponification is laminated to at least one surface of the polarizer. In the method, said protective film contains cellulose acetate, and the surface free energy before alkali saponification of said protective film satisfies formula (SI), below, and the surface free energy after alkali saponification satisfies formula (SII), below. Formula (SI): 0.25??sh/?sp?0.40; Formula (SII): 1.5??sh/?sp?3.0 (wherein ?sh represents the hydrogen bond component of the surface free energy, and ?sp represents the dipole component).

Abstract: A lens barrel and a projector of the invention are provided with a fixed cylinder, and a cam ring mounted on the fixed cylinder. A first projection and a second projection are provided on one of the fixed cylinder and the cam ring, and a first rotation restricting portion and a second rotation restricting portion are provided on the other of the fixed cylinder and the cam ring. The first rotation restricting portion restricts rotation of the cam ring by abutting contact with the first projection when the cam ring is rotated in a first direction, and the second rotation restricting portion restricts rotation of the cam ring by abutting contact with the second projection when the cam ring is rotated in a second direction opposite to the first direction.