Abstract: 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.

Abstract: A light source device includes: a light-shielding member defining an opening; a light-guide member located in the opening in a top view and including two or more divided lens portions; and a plurality of light-emitting parts disposed such that each of the plurality of light-emitting parts corresponds to a respective one of the lens portions, each of the plurality of light-emitting parts being configured to be individually turned on. Each of the light-emitting parts has an upper surface serving as a light-emitting surface. The two or more lens portions are Fresnel lenses. Irradiation areas corresponding to the light-emitting parts are at least partially different from each other.

Abstract: 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.

Abstract: A light source device includes: a plurality of independently operable light emitting devices; a first lens facing the light emitting devices; and a second lens facing the first lens. A lower face of the first lens facing the light emitting devices includes: an entrance part located in a center where light from the light emitting devices enters, and a light guide part located outward of the entrance part and configured to guide light entering the entrance part. A lower face of the second lens facing the first lens includes a Fresnel lens face including a plurality of annular protruding portions.

Abstract: A light source device includes: a light emitting device having an upper face comprising a light emission face; a first lens facing the light emitting device; and a second lens facing the first lens. A lower face of the first lens facing the light emitting device includes an entrance part provided in a center of the lower face where light from the light emitting device enters, and a light guide part provided on an outside of the entrance part to guide the light entering the entrance part. A lower face of the second lens facing the first lens includes a Fresnel lens face composed of a plurality of annular protruding portions.

Abstract: A light source device includes a substrate having an upper surface including mounting areas; light-emitting elements on the upper surface of the substrate in the mounting areas; a light-shielding member on an upper surface of at least one of the light-emitting elements; and a light guide member defining, in a lower surface, first recesses and at least one second recess. The light-emitting elements are disposed on the mounting areas in the first recesses. Light emitted from the light-emitting elements enters the light guide member through first inner surfaces defining the first recesses, is reflected at second inner surfaces defining the second recess toward the upper surface of the light guide member, is emitted from the upper surface of the light guide member, and illuminates illumination areas at positions that are point-symmetrical, with respect to a point above the substrate, to the mounting areas where the light-emitting elements are disposed.

Abstract: A light source device includes a plurality of light emitting parts, a first lens, and an optical lens. Each light emitting part is configured to emit light from the light emitting surface at a first full-width half-maximum and is configured to be individually turned on. The optical lens has a first surface including incident regions and a second surface including emission regions. A minimum distance between the first surface of the optical lens and the first lens is 0.1 mm or more and 1.0 mm or less. A light emitted from each of the light emitting parts enters the optical lens through the first lens, the light being emitted from the first lens at a second full-width half-maximum smaller than the first full-width half-maximum, such that lights emitted from two or more of the light emitting parts are irradiated to two or more corresponding irradiation regions.

Abstract: 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.

Abstract: A light source device includes a substrate having an upper surface including mounting areas; light-emitting elements on the upper surface of the substrate in the mounting areas; a light-shielding member on an upper surface of at least one of the light-emitting elements; and a light guide member defining, in a lower surface, first recesses and at least one second recess. The light-emitting elements are disposed on the mounting areas in the first recesses. Light emitted from the light-emitting elements enters the light guide member through first inner surfaces defining the first recesses, is reflected at second inner surfaces defining the second recess toward the upper surface of the light guide member, is emitted from the upper surface of the light guide member, and illuminates illumination areas at positions that are point-symmetrical, with respect to a point above the substrate, to the mounting areas where the light-emitting elements are disposed.

Abstract: A light source device includes: a light-shielding member defining an opening; a light-guide member located in the opening in a top view and including two or more divided lens portions; and a plurality of light-emitting parts disposed such that each of the plurality of light-emitting parts corresponds to a respective one of the lens portions, each of the plurality of light-emitting parts being configured to be individually turned on. Each of the light-emitting parts has an upper surface serving as a light-emitting surface. The two or more lens portions are Fresnel lenses. Irradiation areas corresponding to the light-emitting parts are at least partially different from each other.

Abstract: A light source device includes: a light-shielding member defining an opening; a light-guide member located in the opening in a top view and including two or more divided lens portions; and a plurality of light-emitting parts disposed such that each of the plurality of light-emitting parts corresponds to a respective one of the lens portions, each of the plurality of light-emitting parts being configured to be individually turned on. Each of the light-emitting parts has an upper surface serving as a light-emitting surface. The light-shielding member covers a portion of the light-emitting surface of at least one of the plurality of light-emitting parts in the top view. Irradiation areas corresponding to the light-emitting parts are at least partially different from each other.

Abstract: A light source device includes: a light-shielding member defining an opening; a light-guide member located in the opening in a top view and including two or more divided lens portions; and a plurality of light-emitting parts disposed such that each of the plurality of light-emitting parts corresponds to a respective one of the lens portions, each of the plurality of light-emitting parts being configured to be individually turned on. Each of the light-emitting parts has an upper surface serving as a light-emitting surface. The light-shielding member covers a portion of the light-emitting surface of at least one of the plurality of light-emitting parts in the top view. Irradiation areas corresponding to the light-emitting parts are at least partially different from each other.

Abstract: In an embodiment, communities are generated on demand. In this specification a community is a group of webpages in which users share ideas with one another by posting ideas and sending messages for one another to read. An on-demand community is a community that may be created via tools specialized for creating communities, with just a few keys strokes and/or mouse clicks and by adding information (e.g., about the members and/or the topic or set of topics that the community is focused upon), such that a community may be established within a short amount of time, such as a few minutes or a few hours. Optionally, the communities may be initially populated with ideas related to a particular topic or set of topics. Optionally, each member may be provided with tools for establishing one or more profile page and/or one or more friend pages.

Abstract: In an embodiment, communities are generated on demand. In this specification a community is a group of webpages in which users share ideas with one another by posting ideas and sending messages for one another to read. An on-demand community is a community that may be created via tools specialized for creating communities, with just a few keys strokes and/or mouse clicks and by adding information (e.g., about the members and/or the topic or set of topics that the community is focused upon), such that a community maybe established within a short amount of time, such as a few minutes or a few hours. Optionally, the communities may be initially populated with ideas related to a particular topic or set of topics. Optionally, each member may be provided with tools for establishing one or more profile page and/or one or more friend pages.

Abstract: In an embodiment, communities are generated on demand. In this specification a community is a group of webpages in which users share ideas with one another by posting ideas and sending messages for one another to read. An on-demand community is a community that may be created via tools specialized for creating communities, with just a few keys strokes and/or mouse clicks and by adding information (e.g., about the members and/or the topic or set of topics that the community is focused upon), such that a community maybe established within a short amount of time, such as a few minutes or a few hours. Optionally, the communities may be initially populated with ideas related to a particular topic or set of topics. Optionally, each member may be provided with tools for establishing one or more profile page and/or one or more friend pages.

Abstract: In an embodiment, communities are generated on demand. In this specification a community is a group of webpages in which users share ideas with one another by posting ideas and sending messages for one another to read. An on-demand community is a community that may be created via tools specialized for creating communities, with just a few keys strokes and/or mouse clicks and by adding information (e.g., about the members and/or the topic or set of topics that the community is focused upon), such that a community maybe established within a short amount of time, such as a few minutes or a few hours. Optionally, the communities may be initially populated with ideas related to a particular topic or set of topics. Optionally, each member may be provided with tools for establishing one or more profile page and/or one or more friend pages.

Abstract: In an embodiment, communities are generated on demand. In this specification a community is a group of webpages in which users share ideas with one another by posting ideas and sending messages for one another to read. An on-demand community is a community that may be created via tools specialized for creating communities, with just a few keys strokes and/or mouse clicks and by adding information (e.g., about the members and/or the topic or set of topics that the community is focused upon), such that a community maybe established within a short amount of time, such as a few minutes or a few hours. Optionally, the communities may be initially populated with ideas related to a particular topic or set of topics. Optionally, each member may be provided with tools for establishing one or more profile page and/or one or more friend pages.

Abstract: In an embodiment, communities are generated on demand. In this specification a community is a group of webpages in which users share ideas with one another by posting ideas and sending messages for one another to read. An on-demand community is a community that may be created via tools specialized for creating communities, with just a few keys strokes and/or mouse clicks and by adding information (e.g., about the members and/or the topic or set of topics that the community is focused upon), such that a community may be established within a short amount of time, such as a few minutes or a few hours. Optionally, the communities may be initially populated with ideas related to a particular topic or set of topics. Optionally, each member may be provided with tools for establishing one or more profile page and/or one or more friend pages.

Abstract: In an embodiment, communities are generated on demand. In this specification a community is a group of webpages in which users share ideas with one another by posting ideas and sending messages for one another to read. An on-demand community is a community that may be created via tools specialized for creating communities, with just a few keys strokes and/or mouse clicks and by adding information (e.g., about the members and/or the topic or set of topics that the community is focused upon), such that a community maybe established within a short amount of time, such as a few minutes or a few hours. Optionally, the communities may be initially populated with ideas related to a particular topic or set of topics. Optionally, each member may be provided with tools for establishing one or more profile page and/or one or more friend pages.

Abstract: In an embodiment, communities are generated on demand. In this specification a community is a group of webpages in which users share ideas with one another by posting ideas and sending messages for one another to read. An on-demand community is a community that may be created via tools specialized for creating communities, with just a few keys strokes and/or mouse clicks and by adding information (e.g., about the members and/or the topic or set of topics that the community is focused upon), such that a community may be established within a short amount of time, such as a few minutes or a few hours. Optionally, the communities may be initially populated with ideas related to a particular topic or set of topics. Optionally, each member may be provided with tools for establishing one or more profile page and/or one or more friend pages.