Optical projection system and method
First Claim
1. An optical projection system, comprising:
- a light source, to provide a parallel light beam;
a first color splitter, to split the parallel light beam into a first primary color beam and a color mixing beam, wherein the color mixing beam includes a second primary color beam and a third primary color beam;
a first both-side telecentric group, implemented after the first color splitter and on a first light path of the first primary color beam, so as to produce a first light beam;
a second both-side telecentric group, implemented after the first color splitter and on a second light path of the color mixing beam;
a second color splitter, disposed at a position, so as to split the color mixing beam into a second light beam and a third light beam; and
a mixing and projection unit, receiving the first light beam, the second light beam, and the third light beam to combine and project.
1 Assignment
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Accused Products
Abstract
An optical projection system has a parallel light source for producing a parallel light beam. A first color splitter splits the parallel light beam into a first color beam and a color mixing beam. The color mixing beam includes a second color beam and a third color beam. A first both-side telecentric group is disposed on a first light path of the first color beam, so as to transform into a first light beam. A second both-side telecentric group is disposed on a second light path of the color mixing beam. A second color splitter is disposed on the second light path to split the color mixing beam into a second light beam and a third light beam. A light-combining unit receives the first, second, and third light beams and combines into a mixed beam. Then the mixed beam is projected.
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Citations
16 Claims
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1. An optical projection system, comprising:
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a light source, to provide a parallel light beam; a first color splitter, to split the parallel light beam into a first primary color beam and a color mixing beam, wherein the color mixing beam includes a second primary color beam and a third primary color beam; a first both-side telecentric group, implemented after the first color splitter and on a first light path of the first primary color beam, so as to produce a first light beam; a second both-side telecentric group, implemented after the first color splitter and on a second light path of the color mixing beam; a second color splitter, disposed at a position, so as to split the color mixing beam into a second light beam and a third light beam; and a mixing and projection unit, receiving the first light beam, the second light beam, and the third light beam to combine and project. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An optical projection method, comprising:
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providing a parallel light beam; splitting the parallel light beam into a first light beam and a color mixing beam; leading the first light beam to enter a first both-side telecentric group; leading the color mixing beam to enter a second both-side telecentric group; splitting the color mixing beam into a second light beam and a third light beam; combining the first light beam, the second light beam and the third light beam, so as to form a mixed light beam; and projecting the mixed light beam. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification