Image displaying apparatus
First Claim
1. An image displaying apparatus comprising:
- an image displaying element configured to form an image to be projected; and
a projection optical system having a positive refractive power and configured to project the image to be projected onto a screen,wherein the projection optical system includes a lens optical system and a mirror optical system, the lens optical system including plural lens groups, the mirror optical system including a first mirror and a second mirror, the second mirror being a concave mirror,wherein an intermediate image of a pixel of the image displaying element is formed between the image displaying element and the second mirror,wherein the first mirror is held by a position adjusting part which adjusts a position thereof, the position adjusting part including a plurality of spacers which are inserted between a back face of the first mirror and a back supporting part, the position of the first mirror being adjusted by a thickness of each of the spacers, andwherein the thickness of each of the spacers is identical thereto and the first mirror is held to be capable of adjusting the position thereof in a direction perpendicular to a reflection surface thereof.
1 Assignment
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Accused Products
Abstract
Disclosed is an image displaying apparatus including an image displaying element configured to form an image to be projected and a projection optical system having a positive refractive power and configured to project the image to be projected onto a screen, wherein the projection optical system includes a lens optical system and a mirror optical system, the lens optical system including plural lens groups, the mirror optical system including a first mirror and a second mirror, the second mirror being a concave mirror, wherein an intermediate image of a pixel of the image displaying element is formed between the image displaying element and the second mirror, and wherein the first mirror is held to be capable of adjusting a position thereof.
44 Citations
17 Claims
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1. An image displaying apparatus comprising:
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an image displaying element configured to form an image to be projected; and a projection optical system having a positive refractive power and configured to project the image to be projected onto a screen, wherein the projection optical system includes a lens optical system and a mirror optical system, the lens optical system including plural lens groups, the mirror optical system including a first mirror and a second mirror, the second mirror being a concave mirror, wherein an intermediate image of a pixel of the image displaying element is formed between the image displaying element and the second mirror, wherein the first mirror is held by a position adjusting part which adjusts a position thereof, the position adjusting part including a plurality of spacers which are inserted between a back face of the first mirror and a back supporting part, the position of the first mirror being adjusted by a thickness of each of the spacers, and wherein the thickness of each of the spacers is identical thereto and the first mirror is held to be capable of adjusting the position thereof in a direction perpendicular to a reflection surface thereof. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An image displaying apparatus comprising:
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an image displaying element configured to form an image to be projected; and a projection optical system having a positive refractive power and configured to project the image to be projected onto a screen, wherein the projection optical system includes a lens optical system and a mirror optical system, the lens optical system including plural lens groups, the mirror optical system including a first mirror and a second mirror, the second mirror being a concave mirror, wherein an intermediate image of a pixel of the image displaying element is formed between the image displaying element and the second mirror, wherein the first mirror is held by a position adjusting part which adjusts a position thereof, the position adjusting part including a plurality of spacers which are inserted between a back face of the first mirror and a back supporting part, the position of the first mirror being adjusted by a thickness of each of the spacers, and wherein the thicknesses of the spacers are different from one another and the first mirror is held to be capable of adjusting a tilt of a reflection surface thereof. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An image displaying apparatus comprising:
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an image displaying element configured to form an image to be projected; and a projection optical system having a positive refractive power and configured to project the image to be projected onto a screen, wherein the projection optical system includes a lens optical system and a mirror optical system, the lens optical system including plural lens groups, the mirror optical system including a first mirror and a second mirror, the second mirror being a concave mirror, wherein an intermediate image of a pixel of the image displaying element is formed between the image displaying element and the second mirror, wherein the first mirror is held by a position adjusting part which adjusts a position thereof, the position adjusting part including a spacer which is inserted between a back face of the first mirror and a back supporting part, the position of the first mirror being adjusted by a thickness of the spacer, and wherein the position adjusting part includes a fastening member configured to fix the first mirror and the spacer on the back supporting part, the fastening member passing through the first mirror and the spacer. - View Dependent Claims (14, 15, 16, 17)
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Specification