摘要:
A marking device, a medium, a container, and a marking method. The marking device includes a first marker including a first optical system having a first focal point, the first marker being configured to concentrate a first light onto a first area of a non-planar portion of a medium to perform marking on the first area, the non-planar portion including a plurality of areas including the first area and a second area, and a second marker including a second optical system having a second focal point. The second marker is configured to concentrate a second light onto the second area to perform the marking on the second area, and the second focal point of the second optical system is different from the first focal point of the first optical system in a direction parallel to a central axis of the first optical system.
摘要:
A light-source device includes an excitation light source, an optical member, and a wavelength converter. The excitation light source is configured to emit first color light. The optical member has a reflecting surface configured to reflect the first color light emitted from the excitation light source. The wavelength converter includes a wavelength conversion member on which the first color light reflected by the optical member is incident. The wavelength conversion member is configured to convert at least part of the first color light into second color light having a wavelength different from a wavelength of the first color light and emit the second color light. A center of the first color light on the reflecting surface of the optical member does not intersect with a light flux of the first color light emitted from the wavelength converter.
摘要:
An HUD apparatus is configured to irradiate light for forming an image on a transmissive reflector provided in a movable body, and to display a virtual image in a display area to overlap the virtual image with scenery outside the movable body. A given distance range in the scenery from a reference point that is set in the movable body is included in the display area, and a difference between a first convergence angle to a target object (e.g., road surface) that is present in the given distance range and a second convergence angle to the virtual image displayed in the display area is at most one degree.
摘要:
A light source device includes a light source section that emits laser light, a reflection and diffusion member that diffuses and reflects the laser light emitted from the light source section, and a cooler that cools the reflection and diffusion member. The cooler includes at least one of an axial fan, an electronic cooling element, and a heat pipe.
摘要:
An illumination light source system includes an excitation light source; a reflection/transmission member having a transmission area which transmits excitation light from the excitation light source and a reflection area which reflects the excitation light, the transmission area and the reflection area sequentially crossing an emission light path of the excitation light source; a fluorescent member provided in at least one of a reflection light path of the excitation light reflected by the reflection area and a transmission light path of the excitation light transmitted through the transmission area, the fluorescent member being provided with a phosphor which generates a color different from that of the excitation light by excitation with the excitation light; and a controller which reduces a light volume of the excitation light source while a boundary area between the transmission area and the reflection area of the reflection/transmission member is located on the emission light path.
摘要:
An illumination light source device, comprising: a light path junction member which splits light emitted from a light source into a first light path emitting excitation light for phosphor and a second light path irradiating illumination light; a first diffuser disposed in the first light path; and a second diffuser disposed in the second light path, the second diffuser having a diffusion degree larger than that of the first diffuser.
摘要:
Disclosed is a projection optical system including a first optical system configured to form a first image conjugate to an object and have an optical axis and a second optical system configured to project a second image conjugate to the first image onto a surface to be projected on, wherein the first image satisfies a condition of: Im×Tr≦1.70 wherein Im denotes a length of the first image in a direction of an optical axis of the first optical system, normalized by a focal length of the first optical system, and Tr denotes a throw ratio for the projection optical system.
摘要:
An illumination apparatus emits light onto an optical modulation device for forming an image according to a modulation signal and illuminating an object. The illumination apparatus includes a light source; a fluorescent material that emits light of a color different from a color of light emitted by the light source; and a light guiding unit that switches between a state in which the light emitted from the light source is guided to the fluorescent material and a state in which the light emitted from the light source is not guided to the fluorescent material.