Abstract: A virtual image display device includes an imaging light generation device that generates an imaging light, a first reflection type diffraction element that diffracts the imaging light from the imaging light generation device, a second reflection type diffraction element diffracts the imaging light from the first reflection type diffraction element so that the imaging light reflected by the first reflection type diffraction element is compensated for wavelength distribution, and a concave transmission mirror that has a concave shape and includes a partial reflection film reflecting a part of the imaging light and transmitting other part of the imaging light, In the second reflection type diffraction element diffracts the imaging light toward the mirror and transmits the part of the imaging light reflected by the mirror.

Abstract: A virtual image display device includes an imaging light generation device generating an imaging light, a transmission inclined mirror configured to reflect the imaging light, and a concave transmission mirror including: a partial reflection film reflecting the imaging light reflected transmission inclined mirror, and a reflection type diffraction layer being disposed on opposite to the reflection film. In the reflection type diffraction layer diffracts the imaging light in a direction that is different from a direction in which the reflection film reflects the imaging light.

Abstract: A virtual image display device includes an imaging light generation device, and an optical unit including a concave transmission mirror provided with a partial reflection film, the optical unit being configured to form a virtual image with the imaging light emitted from the imaging light generation device, wherein the optical unit includes a reflection type diffraction element disposed on an external side of the partial reflection film, the reflection type diffraction element being configured to diffract the imaging light so that the imaging light is deviated from an optical path passing through the concave transmission mirror.

Abstract: A diffractive optical element according to the invention includes a holographic element configured to deflect incident light, a first substrate provided on one surface side of the holographic element, a first dielectric film provided between the first substrate and the holographic element, a second dielectric film provided on another surface side of the holographic element, and a third dielectric film provided on a side surface side of the holographic element.

Abstract: A fishing rod includes a hollow rod extending along a central axis; and a shaft member with an outer peripheral surface inclined relative to the central axis inserted into the rod from the one end, and that is supported by an inner peripheral surface of the rod at a support position on another end side of the one end in an axial direction along the central axis, wherein the inner peripheral surface of the rod has at least one convex portion protruding toward the central axis from a virtual curve between the support position and the one end position axially when drawing a virtual curve that is convex toward the central axis through the support position and the one end position at the end of the end side of the inner peripheral surface in an area radially outward from the outer peripheral surface of the shaft member.

Abstract: An analysis device includes an analysis substrate, an optical pickup, a signal processing circuit, and a control unit. The analysis substrate includes a reaction region. The reaction region includes a region fixed with an antibody bound with a detection target substance, and a region other than the region in the reaction region. The optical pickup irradiates the analysis substrate with a laser beam and receives reflected light to generate a light reception level signal. The signal processing circuit has a computation unit that calculates a count value in the region and a count value in the region. The control unit has a computation unit which calculates a relative count value in the reaction region based on the count values.

Abstract: A signal processing circuit uses gate signals corresponding to a plurality of divided measurement ranges to extract a fine particle pulse signal from a light reception level signal generated by an optical pickup, count the pulse number for each of the gate signals, and output a count value for each of the divided measurement ranges. A count value in-plane distribution generating unit generates count value in-plane distribution data in a measurement range based on the count value. A reaction region position coordinate computation unit estimates positions of all reaction regions from the count value in-plane distribution data. A reaction region count value computation unit calculates the count values for each of all the estimated reaction regions.

Abstract: A deflector includes a support substrate including a curved portion that is curved along a first direction intersecting a thickness direction and that includes a convex curved surface convex to a first side in the thickness direction, a holographic element laminated on the curved portion, and a holder configured to hold the support substrate. The holographic element is configured to deflect light incident on the curved portion at least in the first direction. The holder includes a first fixing portion fixed to, in a thickness direction, a first supported portion that is an end portion of the curved portion of the support substrate on a first side in the first direction, and a second fixing portion fixed to, in the thickness direction, a second supported portion that is an end portion of the curved portion on a second side in the first direction by adhesive bonding and the like.

Abstract: A method of fabricating a substrate for analysis fixes antibodies that specifically react with specific antigens included in detection target substances to the substrate for analysis. The method subjects the substrate for analysis to immersion treatment with a predetermined treatment solution so as to form antibody aggregations in which the antibodies are aggregated at boundary regions between recesses and convex portions on the substrate for analysis. The method causes the antigens and the antibodies to react with each other so as to capture the detection target substances on the substrate for analysis by the antibody aggregations.

Abstract: A display device includes an image light generating device, a light-guiding member on which image light emitted from the image light generating device is incident, a first diffraction element provided at an incident side of the light-guiding member and having positive power, a second diffraction element provided at an exit side of the light-guiding member and having positive power, and a mirror provided at an end portion at the incident side of the light-guiding member and having positive power, in which the image light passed through the first diffraction element is reflected by the mirror and propagates in the light-guiding member, and the image light incident on the second diffraction element is deflected by the second diffraction element forming an exit pupil.

Abstract: An analysis device includes an optical disc drive, a gate information processing unit, a detection circuit, and a gate shift processing unit. The optical disc drive rotates a specimen analysis disc and detects a measurement radial position for an optical pickup. The detection circuit generates gate signals shifted by a gate shift amount in each measurement radial position in a rotating direction of the specimen analysis disc, and generates count values of the respective gate signals. The gate shift processing unit divides a gate signal-corresponding region of the corresponding gate signal by a unit gate shift amount in the rotating direction of the specimen analysis disc to define a plurality of divided regions and sets count values of the divided regions based on the count values of the gate signals.

Abstract: In an encore nuclear instrumentation system which is equipped with a movable type neutron detector, an object of the invention is to control measurement errors due to the degradation of the system. The incore nuclear instrumentation system includes a neutron detector which is to be installed in a nuclear reactor stored in a containment vessel, and an instrumentation unit which has a current detector circuit and is to be installed on the outside of the containment vessel. An output signal of the neutron detector is inputted into the current detector circuit, and the instrumentation unit remembers a matrix which shows a relation among a reactor power of the nuclear reactor, a gain of the current detector circuit, and an output voltage Vn of the current detector circuit, and the calibration of the current detector circuit is performed with reference to the matrix.

Abstract: A drive device for an in-core neutron instrumentation system includes a safety circuit between a power supply and a drive motor. The safety circuit is provided inside the cover member, and switches between a conductive state in which power can be supplied to the drive motor and a cut-off state in which power cannot be supplied thereto depending on a mounted state of the cover member. The safety circuit is controlled to be in the conductive state in response to a state in which the cover member is mounted on the base member, and is controlled to be in the cut-off state in response to a state in which the cover member is not mounted on the base member.

Abstract: To provide an impact absorbing member that can be arranged flexibly in accordance with the shape of the space where the impact absorbing member is to be arranged. An impact absorbing member according to an exemplary aspect has a plurality of structural members each having hollow tetrahedron structures arranged continuously at prescribed intervals on an axis. Further, an impact absorbing member according to another exemplary aspect has a plurality of structural members woven by a connecting member that is disposed in a direction orthogonal to an axial direction of the structural members.

Abstract: An analysis device includes a controller configured to count a pulse derived from a particles as a plural particles when a light reception level signal includes the pulse having a first extreme value point, a second extreme value point, and a third extreme value point, and the pulse fulfils a condition in which the third extreme value point is present between the first extreme value point and the second extreme value point in a pulse width direction of the pulse, the third extreme value point is present between the first extreme value point and a threshold in a pulse amplitude direction, the first extreme value point and the second extreme value point are each an extreme value point of a waveform projecting in a common direction, and the third extreme value point is an extreme value point of a waveform in a direction opposite to the common direction.

Abstract: An optical disc device capable of detecting a reference position of an optical disc in a rotating direction includes an optical disc rotation drive unit, an optical sensor, and a control circuit. The optical disc rotation drive unit rotates the optical disc provided with a rotation reference mark. The rotation reference mark is formed into a shape having a width changing in the radial direction of the optical disc. The optical sensor detects the rotation reference mark. The control circuit controls the optical disc rotation drive unit and the optical sensor, extracts a detection signal of the rotation reference mark as a pulse waveform from an output signal of the optical sensor with the optical disc being rotated, and specifies a rotation reference position of the optical disc in accordance with the pulse waveform.

Abstract: A multilayer reflection electrode film includes a Ag film that is formed of Ag or an Ag alloy; and a transparent conductive oxide film that is disposed on the Ag film, in which the transparent conductive oxide film is formed of an oxide that includes Zn and Ga and further includes one element or two or more elements selected from the group consisting of Sn, Y, and Ti.

Abstract: An analysis threshold generation device includes a threshold calculation unit for generating a pair of thresholds for a pulse width of a pulse included in a light reception level signal or a pair of thresholds for a pulse amplitude of the pulse. The analysis threshold generation device includes a threshold correction unit for generating a pair of thresholds used for analysis in accordance with the pair of thresholds generated by the threshold calculation unit and a count value output from a pulse count unit. The threshold calculation unit repeatedly generates a new pair of thresholds in which at least one of the pair of thresholds is changed every time the pulse count unit counts the pulse until reaching a predetermined value.

Abstract: An analysis threshold determination device includes a threshold determination unit for determining a pair of or plural pairs of thresholds used for analysis in accordance with a pair of thresholds generated by a calculation unit and a count value output from a. pulse count unit. The calculation unit repeatedly generates a new pair of thresholds in which at least one of the pair of thresholds is changed every time the pulse count unit counts the pulse until reaching a predetermined value. The threshold determination unit chooses a class of a measure of central tendency according to a frequency distribution defining each pair of thresholds generated as a class and the count value output from the pulse count unit as a frequency. The threshold determination unit determines a pair of or plural pairs of thresholds corresponding to a class of a predetermined range from the class of measure of central tendency.

Abstract: A method for manufacturing an optical element according to the present disclosure includes, a first step of, after affixing a hologram forming material to a glass substrate having a marking portion, performing interference exposure on the hologram forming material, thereby forming a hologram layer at the glass substrate, and a second step of affixing the hologram layer peeled off from the glass substrate to a plastic substrate having a first alignment mark, wherein in the second step, the first alignment mark on the plastic substrate, and a second alignment mark formed at a position corresponding to the marking portion in the hologram layer during the interference exposure are used to implement positioning of the plastic substrate and the hologram layer.