PROJECTION APPARATUS
First Claim
1. A projection apparatus, comprising:
- an illumination system, for providing an illumination beam;
a light valve, disposed on a transmission path of the illumination beam, for converting the illumination beam into an image beam;
a first optical element, disposed on a transmission path of the image beam, a portion of the image beam reflected by the first optical element, a remaining portion of the image beam passing through the first optical element;
a first projection lens, disposed on a transmission path of the image beam passing through the first optical element; and
a second projection lens, disposed on a transmission path of the image beam reflected by the first optical element.
2 Assignments
0 Petitions
Accused Products
Abstract
A projection apparatus including an illumination system, a light valve, a first optical element, a first projection lens, and a second projection lens is provided. The illumination system is suitable to provide an illumination beam, and the light valve is disposed on a transmission path of the illumination beam. The light valve is suitable to convert the illumination beam into an image beam. The first optical element is disposed on a transmission path of the image beam. A portion of the image beam is reflected by the first optical element, and a remaining portion of the image beam passes through the first optical element. The first projection lens is disposed on a transmission path of the image beam passing through the first optical element, and the second projection lens is disposed on a transmission path of the image beam reflected by the first optical element.
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Citations
10 Claims
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1. A projection apparatus, comprising:
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an illumination system, for providing an illumination beam; a light valve, disposed on a transmission path of the illumination beam, for converting the illumination beam into an image beam; a first optical element, disposed on a transmission path of the image beam, a portion of the image beam reflected by the first optical element, a remaining portion of the image beam passing through the first optical element; a first projection lens, disposed on a transmission path of the image beam passing through the first optical element; and a second projection lens, disposed on a transmission path of the image beam reflected by the first optical element. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A projection apparatus, comprising:
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an illumination system, for providing an illumination beam; a light valve, disposed on a transmission path of the illumination beam, for converting the illumination beam into an image beam; a first optical element, disposed on a transmission path of the image beam, comprising a body and a driving device connected to the body, wherein the body comprises; a reflecting portion; a light splitting portion; and a light-transmission portion, wherein the driving device is adopted to drive the body to intersect the reflecting portion, the light splitting portion or the light-transmission portion on the transmission path of the image beam; wherein when the reflecting portion intersects the transmission path of the image beam, the image beam is reflected by the reflecting portion;
when the light splitting portion intersects the transmission path of the image beam, a portion of the image beam is reflected by the light splitting portion and the other portion of the image beam passes through the light splitting portion; and
when the light-transmission portion intersects the transmission path of the image beam, the image beam passes through the light-transmission portion;a first projection lens, disposed on a transmission path of the image beam passing through the first optical element; and a second projection lens, disposed on a transmission path of the image beam reflected by the first optical element. - View Dependent Claims (8, 9, 10)
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Specification