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: A variable-focal-length lens system for projection which achieves focusing by movement of the entire system has a second to a fourth lens group as focal-length-varying lens groups and a first lens group as a distance-compensation lens group. The second to fourth lens groups individually move in the optical axis direction to vary the group-to-group distances so as to vary the focal length of the entire system. During focusing, the first lens group moves in the optical axis direction such that, as the projection distance varies from a remote distance to a close distance, curvature of field varies to the under side.

Abstract: In order to improve the detection accuracy of a reflection spectrum, a detection device for intermolecular interaction is provided with a detector (10) which has a ligand (16), a white light source (20) which emits white light, a spectroscope (30) which detects the spectral intensity of received light, a light transmission unit (40) which has a first light transmission path (41) for transmitting the white light from the white light source to the detector, a second light transmission path (42) for transmitting reflected light of the white light from the detector to the spectroscope, and a third light transmission path (43) for transmitting the white light from the white light source to the spectroscope, a switching unit (80) which performs switching between a reflected light receiving state in which the transmission of the reflected light of the white light in the detector to the spectroscope via the first and second light transmission paths is enabled and a white light receiving state in which the transmissio

Abstract: In an eccentricity measuring method according to the present invention, a first position of a light source image formed by reflection at one optical surface is measured (S2), a predetermined second position related to another optical surface is measured (S3), and a relative eccentricity between both optical surfaces is calculated based on the first and second positions (S5). Therefore, the eccentricity measuring method enables measurement of eccentricity by a same measurement optical system regardless of a radius of curvature of an optical surface of an optical element.

Abstract: Disclosed is an imaging lens by which astigmatism and field curvature are satisfactorily corrected by arranging on a first surface a concave surface having an appropriate radius of curvature. Condition (1) defines the radius of curvature of the concave surface arranged on the object-side surface of a bonded compound lens. By fulfilling condition (1), a lens can be obtained in which astigmatism and field curvature are satisfactorily corrected. Condition (1): ?1.5<rL11/f<?5.0, wherein rL11 is the local curvature radius of the object-side surface of the first lens calculated by the equation below; f is the focus distance of the entire system. rL11={(h1)2+(s1)2}/(2s1); h1 is 1/10 of the effective radius of the object-side surface of the first lens; and s1 is the displacement amount in a direction parallel to the optical axis from the surface apex point at a lens surface height h1.

Abstract: A lens barrel of the present invention is provided with an electric section having a plurality of sliding portions that slide along the predetermined conductor pattern. The electric section is provided with a thin-sheet electric section body supporting the plurality of sliding portions, and a reinforcing portion is provided at the electric section body. Therefore, in the lens barrel 1, the reinforcing portion increases the deformation resistance of the electric section body that supports the sliding portions.

Abstract: Disclosed are a light emission device comprising an LED element and a wavelength conversion section, the LED element emitting light of a specific wavelength and the wavelength conversion section converting the light emitted from the LED element to light of a specific wavelength, featured in that the wavelength conversion section is composed of a ceramic layer which has been formed employing, as a raw material, polysilazane containing a phosphor and inorganic fine particles with a particle size smaller than the phosphor.

Abstract: An FPC (3) includes a first bending portion (31) having an outer periphery thereof directed from an attachment portion (36) toward an upstream end (3F), and bent in such a direction as to face the attachment portion (36); a second bending portion (32) which is bent from the attachment portion (36) toward a center axis (Z1) at a specified position closer to a downstream end (3B) than the first bending portion (31), and guided to a positioning portion (11); and a third bending portion (33) which is bent toward the camera body at a specified position closer to the downstream end (3B) than the positioning portion (11).

Abstract: According to the process for producing a glass substrate for an information-recording medium of the present invention, a glass plate 10 is roughly polished by a polishing machine 1 using a polishing liquid 7 containing a polishing agent containing cerium oxide as a main component in the rough polishing step, followed by cleaning so as to adjust the amount of cerium oxide on the surface of the glass plate to be 0.125 ng/cm2 or less. The glass plate after rough polishing is thereafter finely polished with a polishing agent containing colloidal silica in the fine polishing step.

Abstract: Provided is an image pickup lens composed of three lens elements and an image pickup apparatus using the same, where the image pickup lens has satisfactorily corrected aberrations despite being smaller in size than conventional image pickup lenses. As image pickup lens includes, in order from the object side, an aperture stop, a first lens, a second lens, and a third lens. The first lens is a positive lens and is a meniscus lens having a convex surface facing the object side and a concave surface facing the object side, and the third lens is a negative lens. The image pickup lens satisfies conditional expressions relating to an air gap between the second and third lenses, a focal length of the second lens, and a curvature radius of the object-side surface of the second lens.

Abstract: The present invention relates to the glass substrate for an information recording medium comprising the following glass components: SiO2: 52 to 67; Al2O3: 8 to 20; B2O3: 0 to 6, with these three oxides FMO: 70 to 85; Li2O: 0.5 to 4; Na2O: 1 to 8; K2O: 0 to 5; and with these three oxides R2O: 5 to 15; MgO: 2 to 9; CaO: 0.1 to 5; BaO: 0 to 3; SrO: 0 to 3; ZnO: 0 to 5; and with these five oxides: 5 to 15; Y2O3: 0 to 4; La2O3: 0 to 4; Gd2O3: 0 to 4; CeO2: 0 to 4; TiO2: 1 to 7; HfO2: 0 to 2; ZrO2: 0 to 5; Nb2O5: 0.2 to 5; and Ta2O5: 0 to 5, and satisfies Li2O/R2O: 0.05 to 0.35; Li2O/FMO: 0.005 to 0.035; Li2O/(MgO+ZnO): less than 2 and Nb2O5/SiO2: 0.01 to 0.075.

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: An organic electroluminescent element in which at least one organic layer including a light emitting layer is sandwiched between an anode and a cathode, wherein the at least one organic layer includes an iridium complex compound represented by a following general formula (1).

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: An image projection apparatus has a corrector that corrects angle distribution of illumination light such that, let, in a comparison in traveling direction between, of diffracted light resulting from light rays with the wavelengths ?1 and ?2 along the illumination optical axis being diffracted on an on-state digital micromirror device, ?1 diffracted light traveling in a direction closest to a traveling direction of the mirror-reflected light and ?2 diffracted light traveling in a direction closest to the traveling direction of the mirror-reflected light, the ?1 diffracted light be diffracted to a position farther away from the mirror-reflected light than the ?2 diffracted light, the angle distribution of the illumination light includes at least an angle distribution that fulfills conditional formula (1): F?2<F?1, where F?1 and F?2 represent F-numbers of illumination light with the first and second wavelengths ?1 and ?2, respectively.

Abstract: For an information storage medium a glass substrate is produced in a method including the steps of: polishing a glass substrate with a polishing agent applied thereon; and subsequently, chemically strengthening a major surface of the glass substrate. The polishing agent contains cerium oxide at a purity equal to or larger than 99% by mass for CeO2/TREO, and has an alkaline earth metal content having a total mass equal to or smaller than 10 ppm by mass. The step of polishing is performed with a soft polishing pad to polish the glass substrate.

Abstract: An objective lens for an optical pickup device is characterized in that compatibility of three types of optical discs, which are a BD, a DVD, and a CD, may be realized by a common objective lens, and a flare can be created by providing an over-spherical aberration when a third optical disc is used from a size relationship between a pitch on a central region side and a pitch on an intermediate region side across a boundary and a relationship of a direction of a step in the base structures superimposed in a central region and an intermediate region of the objective lens.

Abstract: The film mirror has sequencial layers of a hard coat layer, a resin layer and a reflective layer. The hard coat layer has an absorber and the absorber is a triazine absorber or an inorganic UV absorber. Such a mirror has high specular reflectance without delamination even after long-term irradiation by sunlight because of the specific absorbers used in the hard coat layer.

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: Provided is a film mirror for solar thermal power generation including a reflective layer over a base and a hard coat layer at an outermost surface, in which the outermost hard coat layer contains a fluorine atom-containing leveling agent in 0.1% by mass or more and 10% by mass or less relative to the solid resin content thereof.