Image displaying apparatus
First Claim
1. An image displaying apparatus, comprising:
- a light source;
a scanning member for two-dimensionally scanning with light from the light source; and
an optical system for directing the light deflected by the scanning member for scanning to an observer, the optical system being provided with an optical element in which a plurality of optical surfaces including refracting surfaces and internal reflecting surfaces are formed on a medium, wherein the light deflected by the scanning member for scanning forms a two-dimensional image on a predetermined surface through a portion of the plurality of optical surfaces of the optical element; and
wherein the plurality of optical surfaces formed in the optical element are disposed so that an effective area of an incidence surface of the optical element and an effective area of the internal reflecting surface may not overlap each other.
1 Assignment
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Accused Products
Abstract
Disclosed is a compact image displaying apparatus which is high in light utilizing efficiency. The image displaying apparatus is provided with a light source, a scanning member for two-dimensionally scanning with light from the light source, and an optical system for directing the light deflected by the scanning member for scanning to an observer. The optical system is provided with an optical element in which a plurality of optical surfaces including refracting surfaces and internal reflecting surfaces are formed on a medium. The light deflected by the scanning member for scanning forms a two-dimensional image on a predetermined surface through a portion of the plurality of optical surfaces formed in the optical element. The plurality of optical surfaces formed in the optical element are disposed so that an effective area of the incidence surface of the optical element and an effective area of the internal reflecting surface may not overlap each other.
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Citations
6 Claims
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1. An image displaying apparatus, comprising:
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a light source;
a scanning member for two-dimensionally scanning with light from the light source; and
an optical system for directing the light deflected by the scanning member for scanning to an observer, the optical system being provided with an optical element in which a plurality of optical surfaces including refracting surfaces and internal reflecting surfaces are formed on a medium, wherein the light deflected by the scanning member for scanning forms a two-dimensional image on a predetermined surface through a portion of the plurality of optical surfaces of the optical element; and
wherein the plurality of optical surfaces formed in the optical element are disposed so that an effective area of an incidence surface of the optical element and an effective area of the internal reflecting surface may not overlap each other. - View Dependent Claims (2, 3, 4, 5)
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6. An image displaying apparatus, comprising:
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a light source;
a scanning member for two-dimensionally scanning with light from the light source; and
an optical system for directing the light deflected by the scanning member for scanning to an observer, the optical system including a turn-back reflecting surface and an optical surface existing in optical paths before and after the turn-back reflecting surface, wherein a two-dimensional image is formed on or near the turn-back reflecting surface by the light deflected by the scanning member for scanning.
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Specification