Abstract: A lighting device includes: a light-emitting element having multiple first light-emitting sections and multiple second light-emitting sections; a first optical member that causes multiple pieces of first light outputted from the multiple first light-emitting sections and multiple pieces of second light outputted from the multiple second light-emitting sections to be substantially collimated, and outputs the multiple pieces of first light and the multiple pieces of second light; and a second optical member that shapes beam shapes of the multiple pieces of first light, beam shapes of the multiple pieces of second light, or both the beam shapes of the multiple pieces of first light and the multiple pieces of second light, and outputs the multiple pieces of first light and the multiple pieces of second light in a manner that the beam shapes are different between the multiple pieces of first light and the multiple pieces of second light.

Abstract: In a semiconductor laser drive device, wiring inductance between a semiconductor laser and a laser driver is reduced. A substrate has a laser driver built inside. A semiconductor laser is mounted on one surface of a substrate of the semiconductor laser drive device and emits irradiation light from an irradiation surface. A connection wiring electrically connects the laser driver and the semiconductor laser with a wiring inductance of 0.5 nH or less. A passive component is disposed to face a side of the semiconductor laser having the least number of pads and connects to the semiconductor laser and the laser driver.

Abstract: [Object] To provide a light-emitting element that has a vertical-cavity surface-emitting laser structure and is suitable for a long-distance light irradiation, and a ranging apparatus. [Solving Means] A light-emitting element according to the present technology includes a plurality of light emitters, a first electrode terminal, and a second electrode terminal. The plurality of light emitters is a plurality of light emitters one-dimensionally or two-dimensionally arranged in a direction that is vertical to an optical axis corresponding to light that exits each of the plurality of light emitters, each of the plurality of light emitters being a vertical-cavity surface-emitting laser element, each of the plurality of light emitters including a first electrode and a second electrode, each of the plurality of light emitters emitting the light due to current flowing from the first electrode to the second electrode. The first electrode terminal is electrically connected to the first electrode.

Abstract: Provided are an illumination device and a display apparatus capable of reducing generation of an interference pattern, while achieving downsizing and enhancing light use efficiency. An illumination device includes: a light source section that includes a laser light source; an optical device disposed on a light path through which laser light from the laser light source travels; an optical member that outputs illumination light; and a driving section that displaces a relative position between the optical device and the optical member to vary at least one of an incidence position and an incidence angle, in an incidence surface of the optical member, of the laser light.

Abstract: An illumination unit includes one or more light sources each including a solid-state light-emitting device having a light emission region configured of one or more light-emission spots, one or more traveling-direction angle conversion device each converting a traveling-direction-angle of light, and an integrator including a first fly-eye lens having cells which receive light from the traveling-direction angle conversion device and a second fly-eye lens having cells which receive light from the first fly-eye lens, the integrator uniformalizing illumination distribution in a predetermined illumination area. An optical system configured with the traveling-direction angle conversion device and the first and second fly-eye lenses has an optical magnification which allows each of light source images to have a size not exceeding a size of the cell in the second fly-eye lens, the light source images being formed on the second fly-eye lens by the respective cells in the first fly-eye lens.

Abstract: An illuminator and a display capable of achieving miniaturization are provided with use of a plurality of light sources emitting light with two or more kinds of wavelengths. In the light source unit 11, a red-color laser 11R, a green-color laser 11G, a blue-color laser 11B, a microlens section 116, and a microprism 117 are integrated on a base material. Each laser beam emitted from each of the laser light sources is transmitted through the microlens section 116, and then, comes into the microprism 117. In the microprism 117, optical path conversion is performed to shorten the distance between the optical paths of the incident light beams (to allow the optical axes of the incident light beams to be closer to each other). Due to the above-described integration, the optical paths of the laser beams are allowed to be synthesized using the microscopic-scaled microlens section and microprisms.

Abstract: Provided are an illumination device and a display apparatus capable of reducing generation of an interference pattern, while achieving downsizing and enhancing light use efficiency. An illumination device includes: a light source section that includes a laser light source; an optical device disposed on a light path through which laser light from the laser light source travels; an optical member that outputs illumination light; and a driving section that displaces a relative position between the optical device and the optical member to vary at least one of an incidence position and an incidence angle, in an incidence surface of the optical member, of the laser light.

Abstract: Provided are an illumination device and a display apparatus capable of reducing generation of an interference pattern, while achieving downsizing and enhancing light use efficiency. An illumination device includes: a light source section that includes a laser light source; an optical device disposed on a light path through which laser light from the laser light source travels; an optical member that outputs illumination light; and a driving section that displaces a relative position between the optical device and the optical member to vary at least one of an incidence position and an incidence angle, in an incidence surface of the optical member, of the laser light.

Abstract: Provided are an illumination unit and a display capable of achieving size reduction in a case where a plurality types of light sources emitting light with various different wavelengths are in use. An optical-path conversion member 12 is provided for performing optical-path conversion to light (red laser light Lr, green laser light Lg, and blue laser light Lg) coming from three types of light sources (a red laser 11R, a green laser 11G, and a blue laser 11B) in a light source unit 11 in such a manner that, compared with an angle formed by center rays in the light, an angle formed by center rays in outgoing light becomes much smaller. Such optical-path conversion is performed without using a large-scale optical system (optical members).

Abstract: An illumination unit includes one or more light sources each including a solid-state light-emitting device having a light emission region configured of one or more light-emission spots, one or more traveling-direction angle conversion device each converting a traveling-direction-angle of light, and an integrator including a first fly-eye lens having cells which receive light from the traveling-direction angle conversion device and a second fly-eye lens having cells which receive light from the first fly-eye lens, the integrator uniformalizing illumination distribution in a predetermined illumination area. An optical system configured with the traveling-direction angle conversion device and the first and second fly-eye lenses has an optical magnification which allows each of light source images to have a size not exceeding a size of the cell in the second fly-eye lens, the light source images being formed on the second fly-eye lens by the respective cells in the first fly-eye lens.

Abstract: An illumination unit includes one or more light sources each including a solid-state light-emitting device having a light emission region configured of one or more light-emission spots, one or more traveling-direction angle conversion device each converting a traveling-direction-angle of light, and an integrator including a first fly-eye lens having cells which receive light from the traveling-direction angle conversion device and a second fly-eye lens having cells which receive light from the first fly-eye lens, the integrator uniformalizing illumination distribution in a predetermined illumination area. An optical system configured with the traveling-direction angle conversion device and the first and second fly-eye lenses has an optical magnification which allows each of light source images to have a size not exceeding a size of the cell in the second fly-eye lens, the light source images being formed on the second fly-eye lens by the respective cells in the first fly-eye lens.

Abstract: An illumination device includes: a light source section having plural kinds of light sources, in which the light sources emits light beams having different wavelengths; a parallelizing optical system parallelizing each of the light beams entered from the light sources, and allowing each of the parallelized light beams to exit therefrom; a light path unifying optical system unifying the parallelized light beams exited from the parallelizing optical system into a single light path; an expanding optical system expanding a beam diameter of each of the parallelized light beams unified into the single light path, and allowing each of the expanded and parallelized light beams to exit therefrom; and a uniformizing optical system uniformizing an in-plane intensity distribution in each of the expanded and parallelized light beams exited from the expanding optical system.

Abstract: An illuminator and a display capable of achieving miniaturization are provided with use of a plurality of light sources emitting light with two or more kinds of wavelengths. In the light source unit 11, a red-color laser 11R, a green-color laser 11G, a blue-color laser 11B, a microlens section 116, and a microprism 117 are integrated on a base material. Each laser beam emitted from each of the laser light sources is transmitted through the microlens section 116, and then, comes into the microprism 117. In the microprism 117, optical path conversion is performed to shorten the distance between the optical paths of the incident light beams (to allow the optical axes of the incident light beams to be closer to each other).

Abstract: Provided are an illumination unit and a display capable of achieving size reduction in a case where a plurality types of light sources emitting light with various different wavelengths are in use. An optical-path conversion member 12 is provided for performing optical-path conversion to light (red laser light Lr, green laser light Lg, and blue laser light Lg) coming from three types of light sources (a red laser 11R, a green laser 11G, and a blue laser 11B) in a light source unit 11 in such a manner that, compared with an angle formed by center rays in the light, an angle formed by center rays in outgoing light becomes much smaller. Such optical-path conversion is performed without using a large-scale optical system (optical members).

Abstract: Provided are an illumination device and a display apparatus capable of reducing generation of an interference pattern, while achieving downsizing and enhancing light use efficiency. An illumination device includes: a light source section that includes a laser light source; an optical device disposed on a light path through which laser light from the laser light source travels; an optical member that outputs illumination light; and a driving section that displaces a relative position between the optical device and the optical member to vary at least one of an incidence position and an incidence angle, in an incidence surface of the optical member, of the laser light.

Abstract: An illumination device includes: a light source section having plural kinds of light sources, in which the light sources emits light beams having different wavelengths; a parallelizing optical system parallelizing each of the light beams entered from the light sources, and allowing each of the parallelized light beams to exit therefrom; a light path unifying optical system unifying the parallelized light beams exited from the parallelizing optical system into a single light path; an expanding optical system expanding a beam diameter of each of the parallelized light beams unified into the single light path, and allowing each of the expanded and parallelized light beams to exit therefrom; and a uniformizing optical system uniformizing an in-plane intensity distribution in each of the expanded and parallelized light beams exited from the expanding optical system.

Abstract: An illumination unit includes one or more light sources each including a solid-state light-emitting device having a light emission region configured of one or more light-emission spots, one or more traveling-direction angle conversion device each converting a traveling-direction-angle of light, and an integrator including a first fly-eye lens having cells which receive light from the traveling-direction angle conversion device and a second fly-eye lens having cells which receive light from the first fly-eye lens, the integrator uniformalizing illumination distribution in a predetermined illumination area. An optical system configured with the traveling-direction angle conversion device and the first and second fly-eye lenses has an optical magnification which allows each of light source images to have a size not exceeding a size of the cell in the second fly-eye lens, the light source images being formed on the second fly-eye lens by the respective cells in the first fly-eye lens.