Abstract: A biomagnetism measuring device includes a magnetic sensor and a support unit. The magnetic sensor includes a tunnel magneto-resistive element including a fixed magnetic layer, a free magnetic layer and an insulating layer. The insulating layer is disposed between the fixed magnetic layer and the free magnetic layer, and has resistance being changed by a tunnel effect depending on an angle difference between a direction of magnetization of the fixed magnetic layer and a direction of magnetization of the free magnetic layer. The support unit supports the magnetic sensor in such a way that the tunnel magneto-resistive element faces a living body. The magnetic sensor outputs an output signal in accordance with a resistance value of the insulating layer, the resistance value being changed by magnetism emitted from the living body.

Abstract: A video display device is provided with a light source, a display element, and an eyepiece optical system (14). The light source emits light which has at least one emission peak wavelength and has a wavelength width including one emission peak wavelength. The display element modulates the light emitted from the light source and displays video. The eye-piece optical system (14) comprises a volume phase reflective HOE (23) with diffracts and reflects video light from the display element and leads the light to a viewing pupil. An HOE surface (23a) is divided into a plurality of flat surfaces (31, 32, 33) disposed so as to be recessed on the viewing pupil side, and the plurality of flat surfaces (31, 32, 33) are continuous so as to have a common ridge line at a boundary between the flat surfaces adjoining to each other.

Abstract: There are disclosed a film mirror, which can be prevented from decrease in specular reflectance when a silver layer that serves as a reflective layer is deteriorated, is lightweight and flexible, can be produced at low cost, can have an enlarged surface area, can be produced on a large scale, exhibits excellent light stability and weather resistance, and exhibits good specular reflectance to solar light; a process for producing the film mirror; and a reflection device for solar power generation, which is equipped with such a film mirror. The film mirror comprises at least an adhesive layer, a silver reflection layer and an upper adjacent layer as constituent layers provided on the resin substrate sequentially in this order, in which at least the upper adjacent layer contains a binder and a corrosion inhibitor for silver.

Abstract: Method of manufacturing an optical element capable of providing a satisfactory shape accuracy even where a plurality of optical elements are molded. By providing a protruding portion 12d to change the flow of molten glass drop GD for an optical element with a forming mold 10, it is possible to make the glass drop GD for an optical element flow along an optical surface transferring surface 12a in the vicinity of edge side close to the drop point of the glass drop GD for an optical element, among the optical surface transferring surfaces 12a. According to this, even where a plurality of glass lenses 100 are collectively molded, it is possible to transfer an optical function surface 101a of the glass lens 100 to each optical surface transferring surface 12a with a high accuracy and to collectively manufacture the glass lenses 100 with a satisfactory shape accuracy.

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 color image, based on a luminance signal including an infrared wavelength component, and based on a color-difference signal that has been generated based on a visible wavelength component in original image data. The luminance signal including an infrared wavelength component is generated, based on a signal obtained by compressing the dynamic range of original image data including at least three types of original image components acquired by an imaging operation of the imaging element.

Abstract: A probe includes an optical system which irradiates a site of a biological tissue and receives light emitted from the site, and an imaging device. The imaging device is disposed ahead of the optical system closer to the end of the probe. The probe rotates the incident direction of the light and the imaging direction of the imaging device around a rotation axis directed to the longitudinal direction of the probe while fixing an angle between the incident direction and the imaging direction. The optical system receives the light from the site which always falls in the field of view of the imaging device, or brought with a time lag into the field of view of the imaging device as a result of rotation, the light being incident in the direction normal to, or inclined away from the rotation axis.

Abstract: Image pickup lens unit (100) comprises, in order to minimize the positional displacement between an optical system and a holder therefor, compound lens (6), holder (2) which houses compound lens (6) therein, and cover (4) which covers compound lens (6). In holder (2), there is formed peripheral section (2e) which restricts the movement of compound lens (6) in the XY-direction. In cover (4), there is formed projecting section (4e) which restricts the movement of compound lens (6) in the Z-direction.

Abstract: Method for manufacturing an image pickup lens unit. In the second molding step, by performing additional molding with respect to a first holder member 20 in which a lens 10 has been inserted, the separation of the lens 10 can be prevented and, at the same time, a second holder member 30 welded to the first holder member 20 can be molded. Therefore, molding of the second holder member 30 and the process of joining the second holder member with the first holder member 20 can be performed together. Additionally, when the lens 10 is fixed from the side of a third molding portion 63 of a second mold 52, the lens 10 and the third molding portion 63 are brought in contact by an elastic biasing force, thereby reducing breakage or deformation of the lens 10.

Abstract: A probe which is inserted into a lumen of inside of a body, irradiates an observation object part of a physiological tissue with excitation light, and detects fluorescence resulting from the excitation light, wherein the probe including: a plus lens arranged facing toward a tip side of the probe; and a plurality of optical fibers receiving the fluorescence at tip surfaces through the plus lens, wherein the tip surface are directed toward the plus lens and arranged in positions offset from an optical axis of the plus lens, wherein positions of the tip surface of at least optical fibers of which an amount of offset from the optical axis of the plus lens differ mutually among plurality of optical fibers are shifted mutually along the optical axis of the plus lens.

Abstract: A method of manufacturing a light-emitting device including a light-emitting element which emits light with a predetermined wavelength and a wavelength conversion portion including a fluorescent substance which is excited by the light emitted from the light-emitting element to emit fluorescence with a wavelength different from the predetermined wavelength, includes the followings. First, spraying so as to apply a liquid mixture containing a layered silicate mineral and a translucent ceramic precursor on the light-emitting element from a nozzle is performed while the nozzle is moved relative to the light-emitting element. Subsequently, forming of the wavelength conversion portion by heating the sprayed and applied liquid mixture is performed.

Abstract: A projection lens system is constructed as a zoom lens system which is for use with a laser light source and performs magnification variation by moving at least a lens group along the optical axis, and the projection lens system fulfills the following conditional formula: (|AC(B2?G)|+|AC(R2?G)|)/(|AC(B1?G)|+|AC(R1?G)|)<0.8, where AC(B2?G) represents longitudinal chromatic aberration between the wavelengths ?B2 and ?G; AC(R2?G) represents longitudinal chromatic aberration between the wavelengths ?R2 and ?G; AC(B1?G) represents longitudinal chromatic aberration between the wavelengths ?B1 and ?G; and AC(R1?G) represents longitudinal chromatic aberration between the wavelengths ?R1 and ?G.

Abstract: A film mirror which is excellent in anti-staining and scratch resistance and can maintain good specular reflectance for sunlight over long period of time is disclosed, comprising a silver reflection layer provided on at least one side of a resin substrate, wherein the film mirror comprises an outermost layer on a light incident side and a surface of the outermost layer exhibits an electric surface resistivity value of 1.0×10?3 to 1.1×109 ohms per square, a pencil hardness of not less than H and less than 6H, and not more than 30 scratches in a steel wool test under a load of 500 g/cm2, and also disclosed are a production method thereof and a reflection device for solar power generation by use thereof.

Abstract: A light-emitting device (100) is provided with a metal part (2) atop a planar LED substrate (1), and an LED element (3) is disposed atop the metal part (2). A glass substrate (5) is provided to an upper surface of the LED element (3), and a wavelength conversion part (6) is formed on an upper surface of the glass substrate (5). The wavelength conversion part (6) comprises a light-transmissive ceramic layer formed by heating a mixture containing a phosphor, an organometallic compound, a layered silicate mineral, an inorganic particulate, an organic solvent, and water.

Abstract: Provided is an optical film which exhibits low internal haze, low internal scattering, and excellent moisture resistance though the film contains diacetylcellulose having excellent retardation-inducing properties. An optical film characterized by comprising: a cellulose acetate ? which has a 6% viscosity of 70 to 250 mPas and a degree of acetyl substitution of 2.0 to less than 2.5; another cellulose acetate ? which has a 6% viscosity lower than that of the cellulose acetate ? and a degree of acetyl substitution of 2.0 to less than 2.5; ester compound C which has 1 to 12 pyranose or furanose structures of at least one kind and in which all or a part of the OH groups of the structures are esterified; and polyester D represented by Formula (1). B-(G-A)n-G-B (1).

Abstract: An image pickup lens unit, in which a holder body and a cover can be easily connected together, without additional components and a resin flow path for the connection. A lens 10 is positioned in a first holder member 20 which remains in a mold. A second holder member 30 for preventing the lens 10 from falling off is molded such that it is welded to the first holder member having the lens 10 positioned therein. This facilitates molding of the second holder member 30 and joining of the second holder member 30 to the first holder member 20 at the same time. Since there is no need to provide a resin flow path for joining the first holder member 20 and the second holder member 30 together, the image pickup lens unit can be made small in size.

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: Disclosed is a method for manufacturing a liquid crystal display device with a front plate including a step of providing, on a surface on a viewing side of a liquid crystal panel having polarizing plates on both sides, a ?/4 plate having a hard coat layer and composed of mainly a thermoplastic resin, an adhesive layer, a front plate composed of glass or acrylic, and a sealing layer containing a UV-curable tacky agent, all being stacked in this order from the viewing side; and a step of curing the sealing layer by irradiating with ultraviolet radiation from a hard coat layer side. The ?/4 plate having the hard coat layer contains 0.005 to 0.5 parts by mass of a compound which shows an absorption peak (?max) in a wavelength range of 260 nm to 400 nm per 100 parts by mass of the thermoplastic resin composing the ?/4 plate.

Abstract: A large aperture zoom optical system and an image pickup apparatus have a five-lens-group arrangement of positive-negative-positive-negative-positive refractive powers. At the time of zooming, the fifth lens group is fixed, and at least the second lens group, the third lens group and the fourth lens group are moved. The third lens group for use in focusing is composed of a single lens element.

Abstract: A laminated wafer lens includes a wafer lens and a spacer substrate bonded to each other. The wafer lens includes a resin section provided on a surface of a glass substrate. The resin section includes lens portions and interval portions, each interval portion provided between adjacent lens portions. The spacer substrate has openings at positions corresponding to the respective lens portions. The lens portions are arrayed in row and column directions in a matrix fashion. The interval portions include first and second interval portions, the second interval portion longer than the first interval portion. The spacer substrate includes interval portions each of which is provided between adjacent openings. The interval portions include third and fourth interval portions corresponding to the first and second interval portions, respectively, the fourth interval portion being longer than the third interval portion.

Abstract: An imaging lens system has, from an object side, at least one positive lens element convex to the object side, a negative lens element, and at least one lens element having an aspherical surface. The positive and negative lens elements are arranged next to each other. The formulae 0.1<Ton/Dopn<7, 0.1<(Rona?Ronb)/(Rona+Ronb)<1.5, and 0.3<Y?/TL<0.