Visual display apparatus
First Claim
1. A head- or face-mounted display apparatus comprising:
- screen means for displaying an image;
a relay optical system for relaying said image displayed by said screen means; and
an ocular optical system disposable in front of an observer'"'"'s eyeball to lead an optical path from said relay optical system to said observer'"'"'s eyeball so that said image relayed by said relay optical system is projectable inside said observer'"'"'s eyeball as an enlarged image;
wherein said relay optical system includes;
a first lens unit having at least one positive lens and having positive power as a whole; and
a second lens unit having negative power;
said first and second lens units being disposed in the mentioned order from said screen means side; and
said relay optical system being disposed so that a lens center axis of at least said second lens unit is decentered with respect to a visual axis that is led from said ocular optical system to said screen means when said observer sees forward.
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Accused Products
Abstract
A head- or face-mounted display apparatus which enables observation at a field angle of 40° or more and provides an image which is flat and clear as far as the peripheries thereof. The display apparatus has a two-dimensional image display element (1), a relay optical system (2 and 3) for projecting a two-dimensional image displayed by the two-dimensional image display element (1), and a concaves mirror (4) disposed forwardly of an observer'"'"'s eyeball (5) to project the two-dimensional image in the air as an enlarged image and to lead the projected image to the observer'"'"'s eyeball (5). The relay optical system includes a first lens unit (2) including at least one positive lens and having positive or negative refracting power, and a second lens unit (3) including at least one negative lens and having negative refracting power. The relay optical system is decentered so that the front focal surface (8) of the concave mirror (4) coincides with the image surface (7) of the relay optical system.
97 Citations
11 Claims
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1. A head- or face-mounted display apparatus comprising:
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screen means for displaying an image; a relay optical system for relaying said image displayed by said screen means; and an ocular optical system disposable in front of an observer'"'"'s eyeball to lead an optical path from said relay optical system to said observer'"'"'s eyeball so that said image relayed by said relay optical system is projectable inside said observer'"'"'s eyeball as an enlarged image; wherein said relay optical system includes; a first lens unit having at least one positive lens and having positive power as a whole; and a second lens unit having negative power; said first and second lens units being disposed in the mentioned order from said screen means side; and said relay optical system being disposed so that a lens center axis of at least said second lens unit is decentered with respect to a visual axis that is led from said ocular optical system to said screen means when said observer sees forward. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification
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- Resources
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Current AssigneeOlympus Optical Corporation Limited (Olympus Corporation)
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Original AssigneeOlympus Optical Corporation Limited (Olympus Corporation)
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InventorsTogino, Takayoshi
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Primary Examiner(s)Ben, Loha
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Assistant Examiner(s)NGUYEN, THONG Q
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Application NumberUS08/095,514Time in Patent Office729 DaysField of Search359/631, 359/630, 359/629, 359/727, 359/728, 359/432-435US Class Current359/631CPC Class CodesG02B 2027/011 comprising device for corre...G02B 2027/0123 comprising devices increasi...G02B 2027/0132 comprising binocular systemsG02B 2027/0143 the two eyes not being equi...G02B 2027/0178 Eyeglass type eyeglass deta...G02B 27/017 Head mountedG02B 27/0172 characterised by optical fe...
