Abstract: Provided is a vehicle headlight device including: a first light irradiator that irradiates light from a light source at a first magnification m1 in a form of a first radiation pattern in which a bright region and a dark region are alternately repeated; and a second light irradiator that irradiates light from a light source at a second magnification in a form of a second radiation pattern in which an entire region is a bright region. In the vehicle headlight device, directivity of the light radiated from the first light irradiator overlaps with directivity of the light radiated from the second light irradiator, and the first magnification m1 is smaller than the second magnification. Thus, it is possible to prevent or reduce failure to notice a pedestrian by a driver even under adverse conditions such as nighttime and rainy weather.

Abstract: A collimator lens in use for a vehicle lighting apparatus includes: an incident surface which allows incident light to become primary light that passes through an inside of the collimator lens; and an emission surface that is configured to emit secondary light parallel to an optical axis of the collimator lens, wherein a diffusion angle of a horizontal component of the primary light is larger than a diffusion angle of a component in a vertical direction of the primary light.

Abstract: A lighting tool for a vehicle configured to radiate light toward a side in front of a vehicle includes: a light radiation unit having a light source main body; a first optical system configured to condense light radiated from the light radiation unit; and a cover member disposed in front of the first optical system and configured to overlap at least a part of the first optical system when seen from the front, wherein an opening disposed on an optical axis of the first optical system is provided in the cover member.

Abstract: A vehicular lamp includes a laser light source configured to radiate a laser beam, a wavelength conversion member configured to receive the laser beam and radiate white light, and a lens body disposed between the laser light source and the wavelength conversion member and configured to emit the white light, wherein the lens body has a laser beam incident surface configured to allow incidence of the laser beam, a white light incident surface configured to emit the laser beam from inside of the lens body and to allow incidence of the white light radiated from the wavelength conversion member, and an emission surface configured to emit the white light, and the wavelength conversion member is disposed to be separated from the white light incident surface.

Abstract: A vehicular lighting fixture is a vehicular lighting fixture configured to illuminate a side in front of a vehicle, and includes a parallel light illumination device configured to emit parallel light and a projection optical system configured to project the parallel light emitted from the parallel light illumination device to a forward side, and in the projection optical system, a focal length of a horizontal component is smaller than a focal length of a vertical component.

Abstract: To form a light distribution pattern having a light illuminance distribution desirable for a vehicular lamp while reducing the temperature bias of a liquid crystal element. A vehicular lamp system capable of variably setting an irradiation pattern of light irradiated to the surroundings of an own vehicle including a light source, a first optical system for making uniform the intensity distribution of light from the light source, a liquid crystal element for modulating light emitted from the first optical system to form an image, a driving unit for driving the liquid crystal element, and a second optical system for projecting the image formed by the liquid crystal element, wherein the vehicular lamp system has a central axis in which the image incident on the plane including the central axis is projected at a relatively large enlargement ratio as it is farther from the central axis.

Abstract: A lighting tool for a vehicle configured to radiate light toward a side in front of a vehicle includes: a light radiation unit having a light source main body; a first optical system configured to condense light radiated from the light radiation unit; and a cover member disposed in front of the first optical system and configured to overlap at least a part of the first optical system when seen from the front, wherein an opening disposed on an optical axis of the first optical system is provided in the cover member.

Abstract: A light irradiation device (1) includes a light-source module (2), a light deflector (3), a parallel light generation unit (4), and a projecting light generation unit (5) in this order along the optical path. All of the light-collection point of the light-source module (2) on the emission side, the center mirror Or of the light deflector (3), and the focal point of the parallel light generation unit (4) on the incidence side are set at the same position P1. The mirror (31) of the light deflector (3) forward- and reverse-rotates about the axis passing through the mirror center Or to emit scanning light Ls as the reflected light and the deflected light to the parallel light generation unit (4). The parallel light generation unit (4) collimates the scanning light Ls to be parallel light that is parallel to the optical axis for emission.

Abstract: Provided is a vehicular headlight that is capable of generating a clear light distribution pattern using a monolithic array light source of surface emitting lasers. The vehicular headlight 1a includes a VCSEL array 5, an image generation unit including a lens array 6 which outputs incident light from the VCSEL array 5 as collimated light so that an image of a light distribution pattern as an illuminance distribution is generated on an output side, a light distribution pattern forming unit 7 having an image forming surface on which the image is formed by the incident light from the image generation unit, and a projection unit 8 outputting the incident light from the light distribution pattern forming unit to an irradiation region in front of the vehicle.

Abstract: A vehicular lighting fixture is a vehicular lighting fixture configured to illuminate a side in front of a vehicle, and includes a parallel light illumination device configured to emit parallel light and a projection optical system configured to project the parallel light emitted from the parallel light illumination device to a forward side, and in the projection optical system, a focal length of a horizontal component is smaller than a focal length of a vertical component.

Abstract: A lighting tool for a vehicle includes a first condensing optical system configured to condense a first beam at a first condensing magnification, a second condensing optical system configured to condense a second beam at a second condensing magnification, and a projection optical system configured to project the first beam and the second beam forward, wherein each of a condensing point of the first beam condensed by the first condensing optical system and a condensing point of the second beam condensed by the second condensing optical system are adjusted according to a rear-side focus of the projection optical system.

Abstract: A vehicular lamp includes a laser light source configured to radiate a laser beam, a wavelength conversion member configured to receive the laser beam and radiate white light, and a lens body disposed between the laser light source and the wavelength conversion member and configured to emit the white light, wherein the lens body has a laser beam incident surface configured to allow incidence of the laser beam, a white light incident surface configured to emit the laser beam from inside of the lens body and to allow incidence of the white light radiated from the wavelength conversion member, and an emission surface configured to emit the white light, and the wavelength conversion member is disposed to be separated from the white light incident surface.

Abstract: A collimator lens in use for a vehicle lighting apparatus includes: an incident surface which allows incident light to become primary light that passes through an inside of the collimator lens; and an emission surface that is configured to emit secondary light parallel to an optical axis of the collimator lens, wherein a diffusion angle of a horizontal component of the primary light is larger than a diffusion angle of a component in a vertical direction of the primary light.

Abstract: Provided is a vehicular headlight that is capable of generating a clear light distribution pattern using a monolithic array light source of surface emitting lasers. The vehicular headlight 1a includes a VCSEL array 5, an image generation unit including a lens array 6 which outputs incident light from the VCSEL array 5 as collimated light so that an image of a light distribution pattern as an illuminance distribution is generated on an output side, a light distribution pattern forming unit 7 having an image forming surface on which the image is formed by the incident light from the image generation unit, and a projection unit 8 outputting the incident light from the light distribution pattern forming unit to an irradiation region in front of the vehicle.

Abstract: An optical source unit includes a first optical source for emitting a P-polarized light beam, a first detector for detecting whether the first optical source is normal or abnormal, a second optical source for emitting an S-polarized light beam, a second detector for detecting whether the second optical source is normal or abnormal, and a light beam combining section including a polarization beam splitter for transmitting the P-polarized light beam and reflecting the S-polarized light beam to combine the P-polarized light beam and the S-polarized light beam into an output light beam of the optical source unit.

Abstract: According to the present invention, a printing apparatus is provided which comprises an image forming unit to form an ink image on a transfer member; a heater to heat the ink image on the transfer member; a transfer unit to transfer the ink image on the transfer member to a print medium; a conveyer to convey the print medium; and a controller to control the image forming so as to complete the heating when the print medium conveyed by the conveyer is to be stopped at a predetermined position, stop the conveyance when the heating is completed before the print medium arrives at the predetermined position, and continue the conveyance when the heating is not completed before the print medium arrives at the predetermined position.

Abstract: A lighting tool for a vehicle includes a first condensing optical system configured to condense a first beam at a first condensing magnification, a second condensing optical system configured to condense a second beam at a second condensing magnification, and a projection optical system configured to project the first beam and the second beam forward, wherein each of a condensing point of the first beam condensed by the first condensing optical system and a condensing point of the second beam condensed by the second condensing optical system are adjusted according to a rear-side focus of the projection optical system.

Abstract: To form a light distribution pattern having a light illuminance distribution desirable for a vehicular lamp while reducing the temperature bias of a liquid crystal element. A vehicular lamp system capable of variably setting an irradiation pattern of light irradiated to the surroundings of an own vehicle including a light source, a first optical system for making uniform the intensity distribution of light from the light source, a liquid crystal element for modulating light emitted from the first optical system to form an image, a driving unit for driving the liquid crystal element, and a second optical system for projecting the image formed by the liquid crystal element, wherein the vehicular lamp system has a central axis in which the image incident on the plane including the central axis is projected at a relatively large enlargement ratio as it is farther from the central axis.

Abstract: A light irradiation device (1) includes a light-source module (2), a light deflector (3), a parallel light generation unit (4), and a projecting light generation unit (5) in this order along the optical path. All of the light-collection point of the light-source module (2) on the emission side, the center mirror Or of the light deflector (3), and the focal point of the parallel light generation unit (4) on the incidence side are set at the same position P1. The mirror (31) of the light deflector (3) forward- and reverse-rotates about the axis passing through the mirror center Or to emit scanning light Ls as the reflected light and the deflected light to the parallel light generation unit (4). The parallel light generation unit (4) collimates the scanning light Ls to be parallel light that is parallel to the optical axis for emission.

Abstract: An optical source unit includes a first optical source for emitting a P-polarized light beam, a first detector for detecting whether the first optical source is normal or abnormal, a second optical source for emitting an S-polarized light beam, a second detector for detecting whether the second optical source is normal or abnormal, and a light beam combining section including a polarization beam splitter for transmitting the P-polarized light beam and reflecting the S-polarized light beam to combine the P-polarized light beam and the S-polarized light beam into an output light beam of the optical source unit.