EP0539907A2
Expired / Lapsed
EP
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Head-mounted image display
Assignee: Sega Corp
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Filing: 1992-10-26
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Granted: —
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Expires: 2012-10-26
Abstract
Abstract A head-mounted image display comprising a housing for covering both the eyes of the user, a support for mounting the housing on the head of the user, an image light emitting unit provided at a predetermined position in the housing for emitting image light, a pair of right and left convex lenses provided at both the eyes in the housing for enlarging the image produced by the image light emitting means, and an optical system provided within the housing for guiding the image appearing on the image light emitting unit to the pair of right and left convex lenses. <IMAGE>
Inventors
- 👤 Kenji c/o K.K. Sega Enterprises Tosaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:37
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/017; G02B27/0172; H; H04; H04N; H04N13/00; H04N13/30; H04N13/332; H04N13/344; H04N13/398; G02B27/0101; G02B2027/011; G02B2027/0132; G02B2027/0136; G02B2027/0178; G02B27/0179; G02B2027/0187; H04N13/10; H04N13/106; H04N13/167; H04N13/189; H04N13/194; H04N13/20; H04N13/204; H04N13/286; H04N13/324
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
93 words
A head-mounted image display comprising: a housing for covering both the eyes of the user; means for mounting the housing on the head of the user: means provided at a predetermined position in the housing for emitting image light; a pair of right and left convex lenses provided at both the eyes in the housing for enlarging the image produced by the image light emitting means; and optical means provided within the housing for guiding the image appearing on the image light emitting means to the pair of right and left convex lenses.
Claim 2
Dependent Claim
20 words
A head-mounted image display according to claim 1, wherein the image light emitting means includes a liquid crystal display plate.
Claim 3
Dependent Claim
22 words
A head-mounted image display according to claim 1, wherein the image light emitting means is provided between the eyes in the housing.
Claim 4
Dependent Claim
47 words
A head-mounted image display according to claim 1, wherein the optical means comprises a prism disposed opposite to the light emitting surface of the image light emitting means and a reflector for guiding the image light emitted from the prism to the right and left convex lenses.
Claim 5
Dependent Claim
150 words
A head-mounted image display comprising: a housing for covering both the eyes of the user: means for mounting the housing on the head of the user; means fixed between both the eyes in the housing and having a directed forward light emitting surface for emitting image light; a pair of right and left convex lenses provided at the positions of both the eyes in the housing for enlarging the image produced by the image light emitting means; a prism having an isosceles-triangular cross-section fixed within the housing and having a bottom surface facing the light emitting surface of the image light emitting means; and a pair of right and left reflector mirrors for guiding to the right and left convex lenses separately the image from the image light emitting means and exiting from left and right tilted surfaces of the prism so as to be perpendicular to those tilted surfaces.
Claim 6
Dependent Claim
119 words
A head-mounted image display comprising: a housing for covering both the eyes of the user: means for mounting the housing on the head of the user; means fixed at a position between both the eyes in the housing for emitting image light; a pair of right and left convex lenses provided at the positions of both the eyes in the housing for enlarging the image produced by the image light emitting means; and a plurality of sets of right and left reflectors provided between the light emitting surface of the image light emitting means and the light and left convex lenses for guiding the image from the image light emitting means separately to the right and left convex lenses.
Claim 7
Dependent Claim
101 words
A head-mounted image display according to claim 6, wherein the image light emitting means is fixed within the housing such that the light emitting surface of the light emitting means faces the face of the user, and comprising a pair of first light and left reflector mirrors disposed in the form of a V opposite to the light emitting surface of the image light emitting meas, and a pair of second right and left reflector mirrors for guiding the image in the image light emitting means reflected by the first reflectors right and left to the right and left convex lenses.
Claim 8
Dependent Claim
88 words
A head-mounted image display comprising: a housing for covering both the eyes of the user; means for mounting the housing on the head of the user; means provided at a predetermined position within the housing for emitting image light; a half mirror provided at a position before both the eyes in the housing; and optical means for guiding the image appearing on the image light emitting means to both the eyes of the user by causing the image to be reflected by and transmitted through the half mirror.
Claim 9
Dependent Claim
88 words
A head-mounted image display according to claim 8, comprising: means with a downward facing light emitting surface for emitting image light; a half mirror having an upper edge close to the face of the user, and a lower edge tilted so as to be an outer edge for reflecting light entering from above in the horizontal direction and allowing horizontal light to be transmitted therethrough; and a reflector provided perpendicular to an outer surface of the housing for reflecting light from inside the housing toward the half mirror.
Claim 10
Dependent Claim
26 words
A head-mounted image display according to claim 1, wherein a convex lens is provided close to the light emitting surface of the image light emitting means.
Claim 11
Dependent Claim
15 words
A head-mounted image display according to claim 9, wherein the reflector includes a half mirror.
Claim 12
Dependent Claim
15 words
A head-mounted image display according to claim 9, wherein the reflector includes a concave mirror.
References Cited (Backward Citations)
No citation records indexed.
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