Abstract: An image display apparatus according to an embodiment of the present technology includes an optical modulator, an optical device, and a sensor unit. The optical device splits a modulated light beam modulated by the optical modulator into a first split light beam and a second split light beam, the first split light beam and the second split light beam each travelling in a different direction, and prevents a light beam, which backwardly travels on an optical path of the first split light beam and enters the optical device, from travelling along an optical path of the second split light beam. The sensor unit is disposed on the optical path of the second split light beam and detects a state of the second split light beam.

Abstract: A monitoring satellite system includes a space development agency (SDA) satellite investigating a threat object; and a monitoring satellite group including a plurality of monitoring satellites that orbit the Earth at intervals from each other and monitor flying objects, wherein each monitoring satellite monitors the flying object when at a location that allows monitoring of the flying object, and the monitoring satellite, upon discovering the threat object to the flying object while monitoring the flying object, transmits information about the threat object to the other monitoring satellites, the information about the threat object is a mission command that instructs the SDA satellite to investigate the threat object, and of the multiple monitoring satellites that transmit or receive the mission command, the monitoring satellite that is in a location that allows communication with the SDA satellite transmits the mission command to the SDA satellite.

Abstract: A light source module according to an embodiment of the present disclosure includes: a light source unit that outputs excitation light; a wavelength conversion unit having a phosphor region and a reflection region, the phosphor region absorbing the excitation light and outputting, as first light, fluorescence that includes light in a wavelength band different from a wavelength band of the excitation light, the reflection region reflecting the excitation light and outputting the excitation light as second light; a wavelength selective polarization separation element that separates light in a predetermined wavelength band on the basis of a polarization direction; and a phase difference element that is selectively disposed in the reflection region and rotates a polarization direction of the excitation light.

Abstract: A wavelength selective phase difference element according to an embodiment of the present disclosure includes: a light incident surface and a light output surface that are opposed to each other in a Z-axis direction when three axes including an X axis, a Y axis, and a Z axis are orthogonal to one another; a first member that has a multi-layer structure where a plurality of layers are stacked between the light incident surface and the light output surface; and a second member that is disposed on the light output surface of the first member and has an optical axis parallel to the Z-axis direction.

Abstract: Cheese that shows a suppressed decrease in texture and/or stretchability of cheese due to heating, may be produced by allowing glucose oxidase, ?-glucosidase, transglutaminase, or a combination of such enzymes to act on raw cheese. Cheese analogues improved in meltability and/or stretchability during heating, may be produced by allowing ?-glucosidase to act on a mixture containing plant-derived oil and starch, or starch before mixing with plant-derived oil.

Abstract: An image display apparatus according to an embodiment of the present technology includes an optical modulator, an optical device, and a sensor unit. The optical device splits a modulated light beam modulated by the optical modulator into a first split light beam and a second split light beam, the first split light beam and the second split light beam each travelling in a different direction, and prevents a light beam, which backwardly travels on an optical path of the first split light beam and enters the optical device, from travelling along an optical path of the second split light beam. The sensor unit is disposed on the optical path of the second split light beam and detects a state of the second split light beam.

Abstract: An image display apparatus according to an embodiment of the present technology includes an optical modulator, an optical device, and a sensor unit. The optical device splits a modulated light beam modulated by the optical modulator into a first split light beam and a second split light beam, the first split light beam and the second split light beam each travelling in a different direction, and prevents a light beam, which backwardly travels on an optical path of the first split light beam and enters the optical device, from travelling along an optical path of the second split light beam. The sensor unit is disposed on the optical path of the second split light beam and detects a state of the second split light beam.

Abstract: An image display apparatus according to an embodiment of the present technology includes a polarizer, a polarization conversion element, and a ¼ wave plate. The polarizer causes to transmit linearly polarized light having a predetermined polarization direction. The polarization conversion element converts a polarization state of the linearly polarized light transmitted through the polarizer and emits the light as light in a non-polarized state. The ¼ wave plate is arranged on an optical path of the light in the non-polarized state emitted from the polarization conversion element.

Abstract: An improvement in quality is achieved by improving a contrast ratio. Therefore, in a projector device including a light source device using a solid-state light source (AR) includes a temperature adjustment device (190) capable of setting a state in which a temperature of at least the solid-state light source is caused to increase. Then, a determination unit (12) determines a luminance state of an image and a control unit (16) controls a heat state of the solid-state light source (AR) by controlling the temperature adjustment device (190) on the basis of a determination result. In particular, by increasing the temperature of the solid-state light source (AR) in accordance with an image, light emission efficiency is lowered to decrease luminance.

Abstract: An image display apparatus according to an embodiment of the present technology includes: a light emission unit; and a polarization conversion element. The light emission unit emits image light. The polarization conversion element has an incident surface, converts a polarization state of the image light that enters the incident surface, emits the converted light as image light in an unpolarized state, and is configured such that conversion properties of the polarization state are non-uniform in the incident surface. As a result, it is possible to sufficiently depolarize the image light and display a high-quality image. In addition, it is possible to reduce uneven polarization and speckles.

Abstract: An image display apparatus according to an embodiment of the present technology includes an optical modulator, an optical device, and a sensor unit. The optical device splits a modulated light beam modulated by the optical modulator into a first split light beam and a second split light beam, the first split light beam and the second split light beam each travelling in a different direction, and prevents a light beam, which backwardly travels on an optical path of the first split light beam and enters the optical device, from travelling along an optical path of the second split light beam. The sensor unit is disposed on the optical path of the second split light beam and detects a state of the second split light beam.

Abstract: An image display apparatus according to an embodiment of the present technology includes an optical modulator, an optical device, and a sensor unit. The optical device splits a modulated light beam modulated by the optical modulator into a first split light beam and a second split light beam, the first split light beam and the second split light beam each travelling in a different direction, and prevents a light beam, which backwardly travels on an optical path of the first split light beam and enters the optical device, from travelling along an optical path of the second split light beam. The sensor unit is disposed on the optical path of the second split light beam and detects a state of the second split light beam.

Abstract: An image display apparatus according to an embodiment of the present technology includes an optical modulator, an optical device, and a sensor unit. The optical device splits a modulated light beam modulated by the optical modulator into a first split light beam and a second split light beam, the first split light beam and the second split light beam each travelling in a different direction, and prevents a light beam, which backwardly travels on an optical path of the first split light beam and enters the optical device, from travelling along an optical path of the second split light beam. The sensor unit is disposed on the optical path of the second split light beam and detects a state of the second split light beam.

Abstract: An image display apparatus according to an embodiment of the present technology includes a polarizer, a polarization conversion element, and a ¼ wave plate. The polarizer causes to transmit linearly polarized light having a predetermined polarization direction. The polarization conversion element converts a polarization state of the linearly polarized light transmitted through the polarizer and emits the light as light in a non-polarized state. The ¼ wave plate is arranged on an optical path of the light in the non-polarized state emitted from the polarization conversion element.

Abstract: [Solving Means] A projector according to the present technology includes a lightbulb, a projection section, and a replacement mechanism. The lightbulb modulates light. The projection section projects light modulated by the lightbulb. The replacement mechanism holds a transmissive member arranged on an optical path between the lightbulb and the projection section and is capable of replacing the transmissive member.

Abstract: An improvement in quality is achieved by improving a contrast ratio. Therefore, in a projector device including a light source device using a solid-state light source (AR) includes a temperature adjustment device (190) capable of setting a state in which a temperature of at least the solid-state light source is caused to increase. Then, a determination unit (12) determines a luminance state of an image and a control unit (16) controls a heat state of the solid-state light source (AR) by controlling the temperature adjustment device (190) on the basis of a determination result. In particular, by increasing the temperature of the solid-state light source (AR) in accordance with an image, light emission efficiency is lowered to decrease luminance.

Abstract: A projector according to the present technology includes a blower mechanism, a liquid crystal lightbulb, a light-incident-side polarization plate, and a light-emitting-side polarization plate. The blower mechanism generates a cooling wind. The light-incident-side polarization plate includes a plurality of wires formed to extend non-parallel to the cooling wind blown by the blower mechanism and is arranged on a light-incident side of the liquid crystal lightbulb. The light-emitting-side polarization plate includes a plurality of wires formed to extend non-parallel to the cooling wind blown by the blower mechanism and is arranged on a light-emitting side of the liquid crystal lightbulb.

Abstract: There is provided an image display apparatus including: a light source unit; at least one light modulation device configured to modulate light from the light source unit, and to emit a modulated light beam; and a sensor configured to receive diffracted light of the modulated light beam emitted from the at least one light modulation device, and to measure intensity of the modulated light.

Abstract: [Solving Means] A projector includes a first light-emitting side polarization plate, a second light-emitting side polarization plate, a third light-emitting side polarization plate, and a cross dichroic prism. The first light-emitting side polarization plate is arranged on a light-emitting side of a first liquid crystal lightbulb that modulates light of a first wavelength band. The second light-emitting side polarization plate is arranged on a light-emitting side of a second liquid crystal lightbulb that modulates light of a second wavelength band. The third light-emitting side polarization plate is arranged on a light-emitting side of a third liquid crystal lightbulb that modulates light of a third wavelength band.

Abstract: A projector according to the present technology includes a blower mechanism, a liquid crystal lightbulb, a light-incident-side polarization plate, and a light-emitting-side polarization plate. The blower mechanism generates a cooling wind. The light-incident-side polarization plate includes a plurality of wires formed to extend non-parallel to the cooling wind blown by the blower mechanism and is arranged on a light-incident side of the liquid crystal lightbulb. The light-emitting-side polarization plate includes a plurality of wires formed to extend non-parallel to the cooling wind blown by the blower mechanism and is arranged on a light-emitting side of the liquid crystal lightbulb.