Light-homogenizing device and optical apparatus with light-homogenizing device
AssigneeDelta Electronics, Inc.
InventorsSean Chang, Albert Lin
Life of this patent
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Abstract
The specification discloses a light-homogenizing device configured between a light source and a light valve. The device has a light-entering surface and a light-exiting surface. In particular, the light-entering surface is square. The shape of the light-exiting surface matches with that of the active region in the light valve.
Claims20
A light-homogenizing device having a wedge structure with an expanding angle, wherein the wedge structure has a light-entering surface and a light-exiting surface, featured in that:
- the light-entering surface has a square shape;
- and
- the light-exiting surface has a rectangular shape.
A light-homogenizing device placed between a light source and a light valve, wherein the light-homogenizing device has a light-entering surface and a light-exiting surface featured in that:
- the light-entering surface has a square shape;
- and
- the shape of the light-exiting surface matches with that of the active region in the light valve.
An optical apparatus with a light-homogenizing device for delivering homogeneous light to a light valve, comprising:
- a light source, which provides needed light;
- a light-homogenizing device, which has a light-entering surface and a light-exiting surface for receiving light from the light source and outputting homogenous light, respectively;
- and
- a light valve, which has an active region for receiving light from the light-homogenizing device;
- wherein the light-entering surface has a square shape, and the shape of the light-exiting surface matches with that of the active region in the light valve.
Dependencies are inferred from the claim text.