Abstract: An air conditioner includes a housing including an illumination opening at a position viewable by a user; a blower provided in an airflow path connecting an inlet and outlet; a light emitter provided in the housing viewable through the illumination opening and including a light incident portion to receive light emitted from a first light source and a first light emission portion to emit first light generated from the light and including light simulating natural light; and at least one light extractor emitting second light that is part of the light received by the light emitter that reaches an edge portion of the light emitter without being emitted as the first light or second light received from the first light source or a second light source different from the first light source without intervention of the light emitter. The at least one light extractor is provided in the airflow path.

Abstract: An air conditioner includes a housing including an illumination opening at a position viewable by a user; a blower provided in an airflow path connecting an inlet and outlet; a light emitter provided in the housing viewable through the illumination opening and including a light incident portion to receive light emitted from a first light source and a first light emission portion to emit first light generated from the light and including light simulating natural light; and at least one light extractor emitting second light that is part of the light received by the light emitter that reaches an edge portion of the light emitter without being emitted as the first light or second light received from the first light source or a second light source different from the first light source without intervention of the light emitter. The at least one light extractor is provided in the airflow path.

Abstract: A light irradiation device includes a light source, a projection optical system, wedge prisms, and an aberration correction surface. The projection optical system projects an image formed based on light emitted from the light source. The aberration correction surface corrects an aberration occurring when the image is projected by the projection optical system. The wedge prism deflects the light emitted from the projection optical system. The wedge prism deflects the light deflected by the wedge prism. The wedge prisms are held so that a deflection direction of light emitted from the wedge prism is changed by rotation of at least one of the wedge prisms. The aberration correction surface is on the wedge prism side with respect to an emission surface of the projection optical system, and is located on the projection optical system side, with respect to the wedge prism, including an incidence surface of the wedge prism.

Abstract: An illumination device includes a light source, a pair of wedge prisms, and a driving portion. The pair of wedge prisms deflect incident light. The driving portion includes a gear and a gear, and causes the pair of wedge prisms to rotate about a rotation axis by using the gear and the gear. The pair of wedge prisms include a wedge prism held by a barrel and a wedge prism held by a barrel. The barrel is disposed inside the barrel. A gear whose center axis is the rotation axis is provided on an outer periphery of the barrel. A gear whose center axis is the rotation axis is provided on an inner periphery of the barrel. The gear is disposed on an outer peripheral side of the gear and meshes with the gear. The gear is disposed on an inner peripheral side of the gear and meshes with the gear.

Abstract: An illumination device includes a frame forming part that is provided at at least one position on an end part of a light-emitting panel having a light emission surface or in a vicinity of the light-emitting panel and includes a bright part region and a dark part region, a light source that emits light to be incident upon the frame forming part, and a light amount regulation part that makes intensity of light heading for a space facing the light emission surface from the dark part region weaker than intensity of light heading for the space from the bright part region in the light entering the frame forming part from the light source, or makes the intensity of the light from the bright part region stronger than the intensity of the light from the dark part region in the light entering the frame forming part from the light source.

Abstract: An air conditioner includes a housing including an illumination opening at a position viewable by a user; a blower provided in an airflow path connecting an inlet and outlet; a light emitter provided in the housing viewable through the illumination opening and including a light incident portion to receive light emitted from a first light source and a first light emission portion to emit first light generated from the light and including light simulating natural light; and at least one light extractor emitting second light that is part of the light received by the light emitter that reaches an edge portion of the light emitter without being emitted as the first light or second light received from the first light source or a second light source different from the first light source without intervention of the light emitter. The at least one light extractor is provided in the airflow path.

Abstract: A headlight module includes: a light source for emitting light; a condensing optical element for concentrating the light; and an optical element including an incident surface for receiving the concentrated light, a reflecting surface for reflecting the received light, and an emitting surface for emitting the reflected light. The condensing optical element changes a divergence angle of the light to form a light distribution pattern. The reflected light and light that enters the optical element and is not reflected by the reflecting surface are superposed on a plane including a point located at a focal position of the emitting surface in a direction of an optical axis of the emitting surface and being perpendicular to the optical axis, thereby forming a high luminous intensity region in the light distribution pattern on the plane. The emitting surface has positive refractive power and projects the light distribution pattern formed on the plane.

Abstract: An air conditioner includes a housing including an illumination opening at a position viewable by a user; a blower provided in an airflow path connecting an inlet and outlet; a light emitter provided in the housing viewable through the illumination opening and including a light incident portion to receive light emitted from a first light source and a first light emission portion to emit first light generated from the light and including light simulating natural light; and at least one light extractor emitting second light that is part of the light received by the light emitter that reaches an edge portion of the light emitter without being emitted as the first light or second light received from the first light source or a second light source different from the first light source without intervention of the light emitter. The at least one light extractor is provided in the airflow path.

Abstract: An illumination device includes a frame forming part that is provided at at least one position on an end part of a light-emitting panel having a light emission surface or in a vicinity of the light-emitting panel and includes a bright part region and a dark part region, a light source that emits light to be incident upon the frame forming part, and a light amount regulation part that makes intensity of light heading for a space facing the light emission surface from the dark part region weaker than intensity of light heading for the space from the bright part region in the light entering the frame forming part from the light source, or makes the intensity of the light from the bright part region stronger than the intensity of the light from the dark part region in the light entering the frame forming part from the light source.

Abstract: A headlight module includes: a light source for emitting light; a condensing optical element for concentrating the light; and an optical element including an incident surface for receiving the concentrated light, a reflecting surface for reflecting the received light, and an emitting surface for emitting the reflected light. The condensing optical element changes a divergence angle of the light to form a light distribution pattern. The reflected light and light that enters the optical element and is not reflected by the reflecting surface are superposed on a plane including a point located at a focal position of the emitting surface in a direction of an optical axis of the emitting surface and being perpendicular to the optical axis, thereby forming a high luminous intensity region in the light distribution pattern on the plane. The emitting surface has positive refractive power and projects the light distribution pattern formed on the plane.

Abstract: A headlight module includes: a light source for emitting light; a condensing optical element for concentrating the light; and an optical element including an incident surface for receiving the concentrated light, a reflecting surface for reflecting the received light, and an emitting surface for emitting the reflected light. The condensing optical element changes a divergence angle of the light to form a light distribution pattern. The reflected light and light that enters the optical element and is not reflected by the reflecting surface are superposed on a plane including a point located at a focal position of the emitting surface in a direction of an optical axis of the emitting surface and being perpendicular to the optical axis, thereby forming a high luminous intensity region in the light distribution pattern on the plane. The emitting surface has positive refractive power and projects the light distribution pattern formed on the plane.

Abstract: An illumination device includes a light source, a pair of wedge prisms, and a driving portion. The pair of wedge prisms deflect incident light. The driving portion includes a gear and a gear, and causes the pair of wedge prisms to rotate about a rotation axis by using the gear and the gear. The pair of wedge prisms include a wedge prism held by a barrel and a wedge prism held by a barrel. The barrel is disposed inside the barrel. A gear whose center axis is the rotation axis is provided on an outer periphery of the barrel. A gear whose center axis is the rotation axis is provided on an inner periphery of the barrel. The gear is disposed on an outer peripheral side of the gear and meshes with the gear. The gear is disposed on an inner peripheral side of the gear and meshes with the gear.

Abstract: A light irradiation device includes a light source, a projection optical system, wedge prisms, and an aberration correction surface. The projection optical system projects an image formed based on light emitted from the light source. The aberration correction surface corrects an aberration occurring when the image is projected by the projection optical system. The wedge prism deflects the light emitted from the projection optical system. The wedge prism deflects the light deflected by the wedge prism. The wedge prisms are held so that a deflection direction of light emitted from the wedge prism is changed by rotation of at least one of the wedge prisms. The aberration correction surface is on the wedge prism side with respect to an emission surface of the projection optical system, and is located on the projection optical system side, with respect to the wedge prism, including an incidence surface of the wedge prism.

Abstract: A headlight module includes a light source, a light distribution control element and a projection optical element. The light source emits light. The light distribution control element forms a light distribution pattern by changing a divergence angle of the light incident therein. The projection optical element projects the light distribution pattern. The light distribution control element includes a first light distribution formation part configured to form a high luminosity region in the light distribution pattern and a second light distribution formation part configured to form a low luminosity region in the light distribution pattern. The low luminosity region is lower in luminosity than the high luminosity region.