Nichia Corporation

Norimasa Yoshida

Tsuyoshi Okahisa

Yuta Oka

Shinya Matsuoka

Saiki Yamamoto

A light emitting module includes: a substrate; a plurality of light sources fixed on the substrate and generating individually controllable outputs; a light shielding member disposed between the light sources; a first lens that is disposed above the light sources and on which the light emitted from each of the light sources becomes incident; and a drive unit capable of rotating the substrate. The light sources include a first light source and a second light source. The angle formed by the axis of rotation of the substrate and the optical axis of first light emitted by the first light source and exiting the first lens differs from the angle formed by the axis of rotation and the optical axis of second light emitted by the second light source and exiting the first lens. The second light can irradiate a first circular track having the axis of rotation as its center.

Light emitting module

A light emitting module includes a plurality of light emitting parts; an optical member including at least one first region where light having a first chromaticity is extracted and at least one second region where light having a second chromaticity different from the first chromaticity is extracted, and configured to transmit or pass light emitted from the plurality of light emitting parts; a change mechanism configured to change a distance between the optical member and the plurality of light emitting parts in a direction along a center axis of the first lens; and a first lens on which light transmitted or passing through the optical member is incident. The first region or the second region is provided so as to correspond to one of the plurality of light emitting parts.

A light source device includes: a plurality of light emitting parts, each having an upper surface that includes a light emitting surface; an optical lens located above the light emitting surfaces of the light emitting parts, the optical lens having: a first surface including a first incident region, and a second surface including a second incident region; and a light converging member located between the light emitting parts and the optical lens, the light converging member including: a plurality of light entering portions, each corresponding to a respective one of a plurality of light emitting parts and covering the light emitting surface of the respective one of the light emitting parts, and a plurality of light emission portions, each corresponding to a respective one of the plurality of light entering portions.

Light source device

A light source device includes: a plurality of light-emitting units, each including a light-emitting surface; an optical member configured to allow light emitted from the light-emitting units to be transmitted or passed therethrough, the optical member including: one or a plurality of first regions from which light of a first chromaticity is extracted upon operation of the light-emitting units, and one or a plurality of second regions from which light of a second chromaticity different from the first chromaticity is extracted upon operation of the light-emitting units; a first movement assembly configured to cause a relative movement between the plurality of light-emitting units and the optical member so that the light-emitting surface and the optical member face one another; and a control unit configured to: control light emission of each of the plurality of light-emitting units, and control operation of the first movement assembly.

A light source device includes: a plurality of independently operable light emitting devices; a first lens having a lower face that faces the light emitting devices, and an upper face opposite the lower face. The lower face of the first lens includes: an entrance part located in a center of the lower face where light from the light emitting devices enters, and a light guide part located outward of the entrance part and configured to guide the light entering the entrance part. The upper face of the first lens comprises a plurality of annular protruding portions.

An optical member includes: a plurality of light controllers, each including: a first surface, a convex surface that is located opposite to the first surface and is curved in a direction away from the first surface, and a concave surface that opens at the first surface and is curved from the first surface toward the convex surface. A radius of curvature of the concave surface is less than a radius of curvature of the convex surface. In a plan view, a center of the concave surface coincides with a center of the convex surface. A first distance from the first surface to a topmost portion of the convex surface is 4.5 times or more a second distance from the first surface to a deepest portion of the concave surface.

Optical member and light source module

A light source device includes: a light emitting device having an upper face including a light emission face; and a first lens having a lower face that faces the light emitting device, and an upper face opposite the lower face. The lower face of the first lens includes: an entrance part located in a center of the lower face where light from the light emitting device enters, and a light guide part located outward of the entrance part and configured to guide the light entering the entrance part. The upper face of the first lens includes a plurality of annular protruding portions.

A light source device includes: a combined body comprising light emitting portions including: a first light emitting portion comprising a first light emitting element, and a second light emitting portion provided separately from and along an outer periphery of the first light emitting portion in a plan view, the second light emitting portion comprising a plurality of second light emitting elements; and a lens disposed above the combined body. The first light emitting element and the plurality of second light emitting elements are arrayed in first and second directions that are perpendicular to each other. The first light emitting element and the plurality of second light emitting elements are controllable to be lit independently.

A light-emitting module includes: a first light source unit including: a first light source, and a first lens on which light emitted from the first light source is incident; a driver configured to rotate the first lens; and a controller configured to, conjunctively with the driver, control an output of the first light source. A central axis of light emitted from the first lens is oblique to a rotation axis of the first lens. The controller is configured to control the output of the first light source according to a position along a trajectory of the central axis of the light emitted from the first lens.

Light-emitting module and lens

A light emitting module includes a light source, a first lens configured to transmit light from the light source and including at least a portion that is elastically deformable, and an actuator configured to move the first lens in a direction along an optical axis of the first lens. The light source includes a contact portion with which the first lens comes into contact. The actuator is configured to move the first lens to change a state of the first lens relative to the contact portion of the light source.

A light source device includes: a mounting board; a plurality of light-emitting parts disposed on the mounting board, each of the plurality of light-emitting parts being configured to be individually turned on; a light-shielding member defining an opening; and a light-guide member supported by the light-shielding member, the light-guide member comprising a Fresnel lens portion, wherein, in a top view, the Fresnel lens portion is located within an area of the opening of the light-shielding member. In the top view, irradiation areas of the respective light-emitting parts are at least partially separated from each other.

A light emitting device includes: a light emitting unit; an optical member configured to transmit or pass light emitted by the light emitting unit, the optical member including: a first region configured to transmit or pass light having a first chromaticity; and a second region configured to transmit or pass light having a second chromaticity different from the first chromaticity; and a movable member configured to move to change a distance between the light emitting unit and the optical member along an optical axis of the light emitting unit.

Light emitting device

A light-emitting device includes: a light-emitting unit having a light-emitting surface; a light guide member configured to guide light from the light-emitting unit, the light guide member having a first surface that includes an incident portion on which light from the light-emitting unit is incident, and a second surface from which the light exits, the second surface including a plurality of concentric protrusions; and a movement mechanism configured to move the light guide member such that the incident portion and the plurality of concentric protrusions move together relative to the light-emitting unit in a first direction that intersects a center axis of the light-emitting surface.

Light-emitting device including movement mechanism

A light source device for irradiating two or more irradiation regions with light includes a plurality of light emitting parts, an optical lens, and a light converging member. The optical lens includes the first surface including a plurality of incident regions and the second surface including a plurality of emission regions. The light converging member includes a plurality of light entering portions and a plurality of light emission portions. The light converging member is located between the light emitting parts and the optical lens.

A light source device includes: a combined body including light emitting portions including: a first light emitting portion including a first light emitting element, and a second light emitting portion provided separately from and along an outer periphery of the first light emitting portion in a plan view, the second light emitting portion including a plurality of second light emitting elements; and a lens disposed above the combined body. The first light emitting element and the plurality of second light emitting elements are arrayed in first and second directions that are perpendicular to each other. The first light emitting element and the plurality of second light emitting elements are controllable to be lit independently.

Growing community of inventors

Komatsushima, Japan

Norimasa Yoshida