Radiation-emitting component
AssigneeOSRAM Opto Semiconductors GmbH
InventorUlrich Streppel
Life of this patent
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Abstract
A radiation-emitting component with a semiconductor body is intended for emitting electromagnetic radiation from its front side. The component also includes a reflective optical element. This optical element is intended to direct some of the radiation emitted by the semiconductor body, which impinges directly on the reflective optical element, into an outer region of a target zone. A refractive optical element is intended to focus the reflected fraction of the radiation into the outer region of the target zone and to focus the remaining fraction of the radiation into an inner region of the target zone.
Claims13
A radiation-emitting component comprising:
- a semiconductor body configured to emit electromagnetic radiation from its front side;
- a reflective optical element with a plurality of oblique, reflective side faces, which are arranged so as to surround the semiconductor body;
- and
- a refractive optical element arranged downstream of the reflective optical element in a direction of emission of the semiconductor body,
- wherein a first part of the radiation of the semiconductor body, which is emitted from the front side of the semiconductor body under a flat angle relative to the front side being an angle smaller than or equal to 60°, impinges directly on the reflective element and is directed to an outer region of a target region by the reflective element, and thereby passes through an outer region of the refractive optical element, and
- wherein a second part of the radiation of the semiconductor body, which is emitted from the front side of the semiconductor body under a comparatively steep angle relative to the front side of greater than 60°, impinges directly on the refractive optical element without first impinging on the reflective optical element, passes through an inner region of the refractive optical element and thereby is bundled in an inner region of the target region by the refractive optical element.
A radiation-emitting component comprising:
- a semiconductor body configured to emit electromagnetic radiation from its front side;
- a reflective optical element with a plurality of oblique, reflective side faces, which are arranged so as to surround the semiconductor body;
- and
- a refractive optical element arranged downstream of the reflective optical element in a direction of emission of the semiconductor body,
- wherein a first part of the radiation of the semiconductor body, which is emitted from the front side of the semiconductor body under a flat angle relative to the front side being an angle smaller than or equal to 60°, impinges directly on the reflective element and is directed to an outer region of a target region by the reflective element, and thereby passes through an outer region of the refractive optical element,
- wherein a second part of the radiation of the semiconductor body, which is emitted from the front side of the semiconductor body under a comparatively steep angle relative to the front side of greater than 60°, impinges directly on the refractive optical element without firstly impinging on the reflective optical element, passes through an inner region of the refractive optical element and thereby is bundled in an inner region of the target region by the refractive optical element, and
- wherein a first or second aperture of the reflective element limit an octagonal area, the first or second aperture being limited by the oblique side faces of the reflective element.
Dependencies are inferred from the claim text.