Ocular optics system having at least four reflections occurring between curved surfaces
First Claim
Patent Images
1. An ocular optical system comprising:
- at least three juxtaposed optical surfaces, at least two optical surfaces of said at least three optical surfaces are defined by curved surfaces which are concave on a pupil position side of said ocular optical system and at least four reflections occur between said curved surfaces, wherein said at least four reflections are four combined reflections occurring at said at least two optical surfaces.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to an ocular optics system which forms no intermediate image, is reduced in terms of size and weight with well-corrected aberrations, and is best suited for use on face- or head-mounted image display devices, and provides an ocular optics system 7 comprising three juxtaposed optical surfaces 3, 4 and 5, wherein a space defined by three optical surfaces 3, 4 and 5 is filled with a transparent medium having a refractive index greater than 1, at least two optical surfaces 3 and 4 of these three optical surfaces are defined by curved surfaces concave on a pupil position side of the optics system, and at least four reflections occur between curved surfaces 3 and 4.
-
Citations
22 Claims
-
1. An ocular optical system comprising:
at least three juxtaposed optical surfaces, at least two optical surfaces of said at least three optical surfaces are defined by curved surfaces which are concave on a pupil position side of said ocular optical system and at least four reflections occur between said curved surfaces, wherein said at least four reflections are four combined reflections occurring at said at least two optical surfaces. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
2. An ocular optical system comprising:
-
at least three juxtaposed optical surfaces, at least two optical surfaces of said at least three optical surfaces are defined by curved surfaces which are concave on a pupil position side of said ocular optical system and at least four reflections occur between said curved surfaces wherein said ocular optical system satisfies the following condition;
space="preserve" listing-type="equation">70°
<
θ
.sub.1 <
100°with the proviso that a light ray leaving a center of an object point and arriving at a center of a pupil defines a principal ray, wherein θ
2 represents an angle which the principal ray incident on a second reflecting surface makes with the principal ray emerging therefrom, as counted in the order of progress of the light ray.
-
-
3. An ocular optical system comprising:
-
at least three juxtaposed optical surfaces at least two optical surfaces of said at least three optical surfaces are defined by curved surfaces which are concave on a pupil position side of said ocular optical system and at least four reflections occur between said curved surfaces, wherein said ocular optical system satisfies the following condition;
space="preserve" listing-type="equation">110°
<
θ
.sub.4 <
160°with the proviso that a light ray leaving a center of an object point and arriving at a center of a pupil defines a principal ray, wherein θ
4 represents an angle which the principal ray incident on a fourth reflecting surface makes with the principal ray emerging therefrom, as counted in the order of progress of the light ray.
-
-
17. An image display device, comprising:
-
an ocular optical system having at least three juxtaposed optical surfaces, at least two optical surfaces of said at least three optical surfaces are defined by curved surfaces which are concave on a pupil position side of said ocular optical system and at least four reflections occur between said curved surfaces; an image display element located on an object surface of said ocular optical system; and a locating means provided to locate an eyeball of an observer on a pupil position of said ocular optical system, wherein said at least four reflections are four combined reflections occurring at said at least two optical surfaces. - View Dependent Claims (18, 19)
-
-
20. A head-mounted image display device, comprising:
-
an ocular optical system having at least three juxtaposed optical surfaces, at least two optical surfaces of said at least three optical surfaces are defined by curved surfaces which are concave on a pupil position side of said ocular optical system and at least four reflections occur between said curved surfaces; an image display element located on an object surface of said ocular optical system; and a locating means provided to locate an eyeball of an observer on a pupil position of said ocular optical system, wherein said at least four reflections are four combined reflections occurring at said at least two optical surfaces. - View Dependent Claims (21, 22)
-
Specification