Abstract: An optical element includes a plurality of partially reflecting mirrors provided in parallel to each other with an interval therebetween, and a transmittance member interposed between adjacent two partially reflecting mirrors of the plurality of partially reflecting mirrors. The transmittance member has an incidence surface on which an image light and an external light are incident through a light guiding body, and an exit surface from which the image light and the external light are exited to an observer side. Each of the plurality of partially reflecting mirrors is disposed so as to be inclined with respect to the incidence surface and the exit surface, and a reflectance of light incident at a relatively small incidence angle with respect to surfaces of each partially reflecting mirror is lower than a reflectance of light incident at a relatively large incidence angle.

Abstract: An electrolyte membrane thickness measurement apparatus includes a detecting medium supplying portion configured to emit a detecting medium, a detecting portion configured to detect a metal catalyst, and an analyzing unit. A thickness direction profile of a detection signal is generated by the detecting portion, and first and second inflection points are determined in the thickness direction profile based on the intensity of the detection signal by the analyzing unit. The distance between the first and second inflection points is evaluated as the thickness of the electrolyte membrane by the analyzing unit.

Abstract: A light-guiding device used in a display device includes a plurality of first half mirrors between a first light-guiding body and a second light-guiding body. Each of the first half mirrors is formed on a first surface extending along a first direction of the first surface and a second surface extending along a second direction in the first light-guiding body. The first light-guiding body includes a third surface overlapping the second surface in a direction along a third direction in which two first surfaces located on both sides of the second surface do not overlap each other between the first surface and the second surface. The third surface extends in a direction different from the first direction.

Abstract: Provided is a film having excellent electrical insulation performance, heat dissipation performance, and workability. In addition, by using the film, provided are an electrical insulation sheet having excellent heat conductivity, a rotating machine using the sheet, an adhesive tape, and the like. The number of coarse projections SPc (4000) on at least one surface of the film is 15 projections/mm2 or greater.

Abstract: An optical element includes a plurality of reflectivity variation partially reflecting mirrors and a light-transmittance member, and the plurality of reflectivity variation partially reflecting mirrors have a plurality of regions having different reflectivity in an inclination direction. The plurality of regions include at least a low reflectivity region positioned on a side far away from an emission surface and a high reflectivity region positioned on a side close to the emission surface. An occupation area of the high reflectivity region of the reflectivity variation partially reflecting mirror positioned far away from an incidence portion is larger than an occupation area of the high reflectivity region of the reflectivity variation partially reflecting mirror positioned on a side close to the incidence portion.

Abstract: An optical element includes a plurality of mirrors; a first transmittance member interposed between adjacent two mirrors; and a second transmittance member provided on one of an incidence and an exit side of the image and the external image with respect to the first transmittance member. A surface of one transmittance member opposite to the other transmittance member among the first and the second transmittance member is an incidence surface on which the image and the external image are incident via a light guiding body. A surface of the other transmittance member is an exit surface from which the image and the external image are exited. Each of the plurality of mirrors is disposed so as to be inclined with respect to the incidence surface. The plurality of mirrors include a first and a second mirror whose width is narrower than a width of the first mirror.

Abstract: A display device according to the invention includes a light guiding body that guides image light, an incidence portion that makes the image light incident on the light guiding body, and an emission portion that makes the image light emitted from the light guiding body. The emission portion includes a plurality of partially reflecting mirrors, and is configured with a first partially reflecting mirror group having a relatively high reflectance of S-polarized light components and a second partially reflecting mirror group having a relatively high reflectance of the P-polarized light components. The first partially reflecting mirror and the second partially reflecting mirror are alternately arranged in an arrangement direction, and emit light of a polarized state including S-polarized light components and P-polarized light components.

Abstract: A half mirror includes a silver layer and an anti-aggregation layer in contact with the silver layer. The anti-aggregation layer may be composed of ITO or IGO. Alternatively, the anti-aggregation layer may be composed of an organic molecular film having a thiol group. Alternatively, the anti-aggregation layer may be composed of an alloy including silver in an amount of 97% or more and an element X, in which the element X is any one of Au, Mg, Zn, Cu, Al, Si, Pd, Sn, Pt, Ti, and Cr.

Abstract: An optical element includes a plurality of partially reflecting surfaces which are provided in parallel to each other with intervals, reflect a portion of image light and external light, and transmit another portion of the image light or external light; and a light transmitting member which supports the plurality of partially reflecting surfaces, in which the light transmitting member includes an incident plane that enters the image light and the external light, and an emission plane that emits the image light and the external light, and each of the plurality of the partially reflecting surfaces is disposed so as to be inclined with respect to the incident plane and the emission plane, and has a plurality of regions having different reflectances in an inclination direction.

Abstract: A light guide system includes a transparent light guide portion that guides light beams incident from one end side to a light-emitting portion. The light guide portion includes a plurality of partial reflection surfaces that are disposed between a first surface and a second surface which are parallel to each other and are inclined at the same angle such that a first end portion is positioned closer to the one end side than a second end portion is. Intervals between the partial reflection surfaces in a first direction are widened from the one end side toward another end side. In a state where the light guide portion is disposed in front of an eye of an observer, the light guide portion is inclined such that the another end side is further away from a face of the observer than the one end side is.

Abstract: An optical element includes a plurality of reflectivity variation partially reflecting mirrors and a light-transmittance member, and the plurality of reflectivity variation partially reflecting mirrors have a plurality of regions having different reflectivity in an inclination direction. The plurality of regions include at least a low reflectivity region positioned on a side far away from an emission surface and a high reflectivity region positioned on a side close to the emission surface. An occupation area of the high reflectivity region of the reflectivity variation partially reflecting mirror positioned far away from an incidence portion is larger than an occupation area of the high reflectivity region of the reflectivity variation partially reflecting mirror positioned on a side close to the incidence portion.

Abstract: A display apparatus includes an image forming device and a light guide. The light guide includes an incident portion and an emission portion including a plurality of mirrors. In the light guide, the total reflection surface is disposed to be inclined with respect to a virtual plane perpendicular to a visual axis, and the mirrors are disposed to be inclined with respect to the total reflection surface. The mirror angle is set such that the light guide angle, the mirror angle, the light angle, the limit incidence angle, and the refractive index of the light guide satisfy the predetermined relationship.

Abstract: A liquid crystal apparatus includes a substrate that includes a convex portion on one surface, a liquid crystal layer that is arranged on the one surface side of the substrate, an inorganic alignment film that is arranged between the substrate and the liquid crystal layer, and has a column structure inclined to the one surface of the substrate, and an organic alignment film, in which the inorganic alignment film has a concave portion of which a thickness becomes thin in at least a portion of the column structure, at a position to be in contact with a portion that does not face an inclined direction side of the column structure in a side surface of the convex portion, and the organic alignment film is arranged in the concave portion.

Abstract: An optical element includes a plurality of partially reflecting mirrors provided in parallel to each other with an interval therebetween, and a transmittance member interposed between adjacent two partially reflecting mirrors of the plurality of partially reflecting mirrors. The transmittance member has an incidence surface on which an image light and an external light are incident through a light guiding body, and an exit surface from which the image light and the external light are exited to an observer side. Each of the plurality of partially reflecting mirrors is disposed so as to be inclined with respect to the incidence surface and the exit surface, and a reflectance of light incident at a relatively small incidence angle with respect to surfaces of each partially reflecting mirror is lower than a reflectance of light incident at a relatively large incidence angle.

Abstract: An optical element includes a plurality of mirrors; a first transmittance member interposed between adjacent two mirrors; and a second transmittance member provided on one of an incidence and an exit side of the image and the external image with respect to the first transmittance member. A surface of one transmittance member opposite to the other transmittance member among the first and the second transmittance member is an incidence surface on which the image and the external image are incident via a light guiding body. A surface of the other transmittance member is an exit surface from which the image and the external image are exited. Each of the plurality of mirrors is disposed so as to be inclined with respect to the incidence surface. The plurality of mirrors include a first and a second mirror whose width is narrower than a width of the first mirror.

Abstract: An optical element includes partially reflecting mirrors provided in parallel to each other with an interval therebetween, reflect a part of image light and external light, and transmit another part of the image light and the external light; and a transmitting member interposed between adjacent two partially reflecting mirrors of the partially reflecting mirrors. The light-transmissive member includes an incidence surface on which the image light and the external light are incident and an exit surface from which the image light and the external light are exited. Each of the partially reflecting mirrors is disposed to be inclined with respect to the incidence surface and the exit surface. The partially reflecting mirrors include at least one first partially reflecting mirror and at least one second partially reflecting mirror having different reflectances with respect to predetermined polarized light components included in the image light and the external light.

Abstract: A polyester film provided with a layer (a P layer) that contains a crystalline polyester (A) also contains plate-like particles (b1) each having an aspect ratio of 2 or more and/or needle-like particle (b2) each having an aspect ratio of 2 or more, wherein the Young's modulus of the polyester film is 2 GPa or more and the values of Wb and V/Wb are 10 or more and 1 or less, respectively, wherein Wb (% by mass) represents the total content of the plate-like particles (b1) and the needle-like particles (b2) in the P layer, and V (% by volume) represents the porosity in the P layer.

Abstract: A controller includes a control board, a transmitting board, a display board, and a USB board. A modular jack is arranged at a position on one surface of the transmitting board, the surface on which the modular jack is arranged faces the control board, and the position of the modular jack is not covered by the control board. A switch is arranged at a position on one surface of the control board, the surface on which the switch is arranged faces the display board and the USB board, and the position of the switch is not covered by the display board and the USB board.

Abstract: There is provided a gas turbine combustor capable of improving cooling performance of a combustion chamber thereof and reducing the amount of NOx emissions.

Abstract: An optical element includes a plurality of partially reflecting surfaces which are provided in parallel to each other with intervals, reflect a portion of image light and external light, and transmit another portion of the image light or external light; and a light transmitting member which supports the plurality of partially reflecting surfaces, in which the light transmitting member includes an incident plane that enters the image light and the external light, and an emission plane that emits the image light and the external light, and each of the plurality of the partially reflecting surfaces is disposed so as to be inclined with respect to the incident plane and the emission plane, and has a plurality of regions having different reflectances in an inclination direction.