OPITCAL PROJECTION AND IMAGE SENSING APPARATUS
First Claim
1. An optical projection and image sensing apparatus for projecting an image light to display an image on a screen and sensing a sensing light from the image on the screen, the optical projection apparatus comprising:
- a light source, for providing an illumination light;
a light valve, disposed on the optical path of the illumination light, for converting the illumination light to the image light;
a first lens set, disposed on the optical path of the image light, for projecting the image light to display the image on the screen;
a beam splitter, disposed on the optical path of the image light and the optical path of the sensing light, the beam splitter being used to reflect a part of the sensing light and allowing a part of the sensing light to pass through, wherein one of the sensing module and the light valve is disposed on the optical path of the sensing light passing through the beam splitter, and the other is disposed on the optical path of the sensing light reflected by the beam splitter; and
a sensing module, for sensing the sensing light from the image on the screen.
1 Assignment
0 Petitions
Accused Products
Abstract
An optical projection and image sensing apparatus including a light source, a light valve, a first lens set, a sensing module, and a beam splitter is provided. The light valve is used to convert an illumination light from the light source to an image light beam. The first lens set is used to project the image light to display an image on a screen, and the sensing module is used to sense a sensing light from the image on the screen. The beam splitter is disposed on the optical paths of the image light and the sensing light from the image on the screen. One of the sensing module and the light valve is disposed on the optical path of the sensing light passing through the beam splitter, and the other is disposed on optical path of the sensing light reflected by the beam splitter.
201 Citations
20 Claims
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1. An optical projection and image sensing apparatus for projecting an image light to display an image on a screen and sensing a sensing light from the image on the screen, the optical projection apparatus comprising:
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a light source, for providing an illumination light; a light valve, disposed on the optical path of the illumination light, for converting the illumination light to the image light; a first lens set, disposed on the optical path of the image light, for projecting the image light to display the image on the screen; a beam splitter, disposed on the optical path of the image light and the optical path of the sensing light, the beam splitter being used to reflect a part of the sensing light and allowing a part of the sensing light to pass through, wherein one of the sensing module and the light valve is disposed on the optical path of the sensing light passing through the beam splitter, and the other is disposed on the optical path of the sensing light reflected by the beam splitter; and a sensing module, for sensing the sensing light from the image on the screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An optical projection and image sensing apparatus for projecting an image light to display an image on a screen and sensing a sensing light from the image on the screen, the optical projection apparatus comprising:
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a light source, for providing an illumination light; a DMD, disposed on the optical path of the illumination light, the DMD having a plurality of micro-mirrors respectively in ON state or OFF state, wherein the micro-mirrors in ON state are used to convert the illumination light to the image light; a first lens set, disposed on the optical path of the image light, for projecting the image light to display the image on the screen; and a sensing module, for sensing the sensing light from the image on the screen, and the sensing module is disposed on the optical path of the sensing light reflected by the micro-mirrors in OFF state. - View Dependent Claims (18, 19, 20)
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Specification