Abstract: The utility patent discloses an astronomical telescope which comprises a telescope body, and a navigation support for mounting a navigation device is arranged on the telescope body. According to the utility model, as the navigation support for mounting the navigation device is arranged on the telescope body, when in use, the navigation device such as a mobile phone and the like may be mounted on the navigation support and is made coincident in orientation with the telescope body, thus the celestial bodies that the users want to observe may be conveniently positioned using the navigation device, thereby facilitating the use.

Abstract: Described are retroreflective marker devices, which encode information that can be read by optical sensors, such as LiDAR devices, and that do not detract from human safety. Also described are kits for retrofitting existing markers.

Abstract: The present invention has an object to provide a production method that can prevent side etching and delamination of an anisotropic dye coating formed by an application process, thereby providing a polarizing element that exhibits durable performance and rugged reliability and that is less affected by a solvent or the like used in a production process after formation of the anisotropic dye coating, which leads to improved flexibility of the production process. The present invention also provides a polarizing element that includes a substrate, an anisotropic dye coating, and a resin composition layer, wherein the anisotropic dye coating and the resin composition layer are sequentially layered on the substrate, wherein the top surface and all side surfaces of the anisotropic dye coating are covered with the resin composition layer, and wherein the anisotropic dye coating and the resin composition layer are not formed on portions of the substrate.

Abstract: A microscope apparatus includes: a light source configured to emit illumination light to illuminate a specimen; a dimming input unit configured to set and input a light amount of the light source in a predetermined dimming range; a switching unit configured to switch a first instruction value instructing the light amount of the light source to a second instruction value larger than the first instruction value when a switching signal to switch the light amount of the light source is input; and a control unit configured to control a light amount of the illumination light emitted from the light source according to the first instruction value set and input by the dimming input unit or the second instruction value obtained by switching by the switching unit.

Abstract: A microscope includes at least one correction unit arranged in a beam path for correcting a variable spherical aberration. The correction unit has at least one optical correction element that is arranged in a convergent or divergent area of the beam path such that the optical correction element is movable along an optical axis. The at least one optical correction element has at least one correction surface. A part of the at least one correction surface through which the convergent or divergent area of the beam path passes forms a correction-effective surface section whose radial extension crosswise to the optical axis is adjustable by moving the correction element along the optical axis.

Abstract: A scanning mirror includes a mirror base and a reflective film formed on the mirror base. The mirror base is formed from a non-metallic material having a specific rigidity, determined by Young's modulus (GPa) and density (g/cm3), of at least 100 GPa·cm3/g.

Abstract: Provided is a medical observation apparatus including: a columnar microscope unit configured to image a minute part of an object to be observed with magnification and thereby output an imaging signal; and a support unit including a first joint unit holding the microscope unit in a rotationally movable manner around a first axis parallel to a height direction of the microscope unit, a first arm unit holding the first joint unit and extending in a direction different from the height direction of the microscope unit, a second joint unit holding the first arm unit in a rotationally movable manner around a second axis orthogonal to the first axis, and a second arm unit holding the second joint unit.

Abstract: A polarizing plate has at least a polarizer layer including a polyvinyl alcohol film dyed with iodine and includes a compound exhibiting a polyiodide ion I5? forming ability in an iodide compound-containing solution.

Abstract: The present disclosure relates to an optical apparatus of collecting three-dimensional information of an object, which includes an optical apparatus of collecting three-dimensional information of an object, which includes an optical detector, a first omnidirectional mirror and a second omnidirectional mirror. The second omnidirectional mirror is disposed between the optical detector and the first omnidirectional mirror.

Abstract: A deformable mirror comprises a deformable membrane extending at rest in a first plane and having a reflecting front face and a back face opposite the front face, a supporting structure, an actuator having a first and second end, the first end fixed to the supporting structure, the second end displaced relative to the first end on a first axis substantially at right angles to the first plane to exert, on the back face, an axial load on the first axis, to locally deform the deformable membrane. The mirror comprises a plate that is substantially flat in a second plane substantially parallel to the first plane, positioned between the actuator and deformable membrane, linked to the back face and deformed when the actuator exerts the axial load, and the plate is rigid in the second plane to take up loads applied to the mirror in the second plane.

Abstract: A method for producing a polarizing film includes (1) preparing a laminate (a) which includes a carrier film and a polarizer with a thickness of 10 ?m or less formed on one surface of the carrier film and contains a polyvinyl alcohol-based resin; (2) peeling off the carrier film from the laminate (a); and (3) applying a liquid material to a side of the laminate (a) from which the carrier film has been peeled off and then solidifying or curing the liquid material to form a transparent resin layer with a thickness of 0.2 ?m or more, wherein the liquid material contains a resin component or a curable component capable of forming a resin layer. This production method enables the achievement of a polarizing film which is able to have satisfactory durability in a heated environment even in cases where a thin polarizer is used therefor.

Abstract: A display device includes a substrate and a wire grid polarizer disposed on the substrate. The wire grid polarizer includes a first wire grid layer, a first middle layer, and a second wire grid layer. The first wire grid layer includes a plurality of first wire grid lines separated from each other. The first middle layer is disposed on the first wire grid layer. The first middle layer includes a first portion having a first middle layer thickness and a second portion having a second middle layer thickness thinner than the first middle layer thickness. The second middle layer thickness is thinner than a thickness of each first wire grid line. The second wire grid layer is disposed on the first middle layer and includes a plurality of second wire grid lines separated from each other. The second wire grid lines overlap the second portion of the first middle layer.

Abstract: A configuration including a main pattern region and a measurement pattern region which are set on one surface of a substrate having flexibility, wherein the measurement pattern region has at least a region disposed inside the contour line of the main pattern region, a main pattern, in which a plurality of line-shaped main convex patterns are arrayed with desired intervals, is disposed in the main pattern region, a measurement pattern, in which a plurality of line-shaped unit convex patterns are arrayed with desired intervals, is disposed in the measurement pattern region, and the line direction of the main pattern and the line direction of the measurement pattern are the same.

Abstract: A lamellar bone observation microscope includes: a light source; a condenser lens for focusing light emitted by the light source onto a sample; an objective lens on an opposite side of the sample from the condenser lens; a first polarizing plate between the light source and the condenser lens to pass only a polarization component of the light emitted by the light source; a second polarizing plate configured to pass only a polarization component of the light passed through the sample in accordance with a relative positional relationship with the first polarizing plate; a first wave plate between the first polarizing plate and the condenser lens to introduce a phase difference of ?/4 in a ? direction of the light passed through the first polarizing plate; and a second wave plate for introducing a phase difference of ?/4 in a ? direction of the light passed through the objective lens.

Abstract: Provided is a medical observation apparatus including: a columnar microscope unit configured to image a minute part of an object to be observed with magnification and thereby output an imaging signal; and a support unit including a first joint unit holding the microscope unit in a rotationally movable manner around a first axis parallel to a height direction of the microscope unit, a first arm unit holding the first joint unit and extending in a direction different from the height direction of the microscope unit, a second joint unit holding the first arm unit in a rotationally movable manner around a second axis orthogonal to the first axis, and a second arm unit holding the second joint unit.

Abstract: A light guide device includes an incident section, a parallel light guide body for light guide, and an emitting section. The emitting section includes a reflection unit formed by arraying a plurality of mirrors. The plurality of mirrors configuring the reflection unit are reflection elements having reflectance of P polarized light lower than reflectance of S polarized light. The plurality of mirrors configuring the reflection unit can be accompanied by wavelength plates to be adjacent to the mirrors.

Abstract: A polarization unit includes a plurality of retardation layers that each have a different retardation value, a polarization layer positioned above the plurality of retardation layers, a first compensation layer positioned between the polarization layer and the plurality of retardation layers, and a second compensation layer positioned below the plurality of retardation layers.

Abstract: An object of the present invention is to provide a retroreflective material that shows high chroma for incident light with a wide angle, and can change the color tone of reflected light depending on the incident angle of the incident light, and also has reduced unevenness in the color of the reflected light. An open-type retroreflective material in which a transparent resin layer and a reflective layer formed of a transparent metal compound thin film are laminated between a transparent microsphere and a fixing resin layer, and the layer thickness of the transparent resin layer is set to satisfy predetermined conditions, can show high chroma for incident light with a wide angle, and can change the color tone of reflected light depending on the incident angle of the incident light, and can also have reduced color unevenness.

Abstract: A substantially achromatic multiple element compensator system for use in a wide spectral range, (for example 190-1700 nm), rotating compensator spectroscopic ellipsometer or polarimeter or the like system, which does not require external surface coatings at locations whereat total internal reflections occur. Multiple total internal reflections enter retardance into an entered beam of electromagnetic radiation. Berek-type retarders on both input and output sides of the multiple elements are oriented to minimize changes in the net retardance vs. wavelength via adjustment of Berek-type retarders. Berek-type retarders.

Abstract: An optical scanner comprises a light source and an MEMS mirror. The light source emits a light beam. The MEMS mirror has a reflecting surface for reflecting the light beam coming from the light source. The light source is configured in such a manner that the optical axis of the light beam vertically irradiates the reflecting surface of the MEMS mirror at a specific position.