Light source guiding device
AssigneeDelta Electronics, Inc.
InventorChung-Min JOU
Life of this patent
Estimating the term…
Abstract
A light source guiding device comprises a light source refracting unit and a light source reflecting unit. The light source refracting unit receives a part of a light beam emitted by a light source, and the light source refracting unit utilizes geometric shapes disposed on inner and outer surfaces to form a rectangular light spot on a light-receiving surface by the part of the light beam. The light source reflecting unit receives another part of the light beam emitted by the light source, and the light source reflecting unit reflects the other part of the light beam emitted by the light source to form another rectangular light spot by using geometric shapes disposed on its surface, and the two rectangular light spots are overlapped with each other to enhance an illuminance of the rectangular light spot.
Claims10
A light source guiding device, comprising:
- a light source refracting unit, an inner surface of the light source refracting unit receiving a part of a light beam emitted by a light source, wherein a direction of a largest light intensity of the light source in a center of the light source pointing to or a direction in a symmetry axis of light intensity is extended is a light-emitting main axis, and a geometric shape of an outer surface of the light source refracting unit projects the part of the light beam on a light-receiving surface to form a rectangular light spot on a side offset from the light-emitting main axis;
- and
- a light source reflecting unit, by using a geometric shape of a side facing the light source, the light source reflecting unit reflects another part of the light beam emitted by the light source on the same light-receiving surface to form another rectangular light spot, and the other rectangular light spot is overlapped with the rectangular light spot formed by the light source refracting unit.
Dependencies are inferred from the claim text.