US4623223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereo image display using a concave mirror and two contiguous reflecting mirrors
Assignee: Individual
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Filing: 1985-05-20
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Granted: 1986-11-18
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Expires: 2005-05-20
Abstract
Abstract Stereo views of a scene are reflected by plano mirrors onto a concave mirror. The plano mirrors are positioned to cause the reflected light from the concave mirror to converge on and cross the optical axis. The concave mirror focuses real images in planar registration in front of the concave mirror and on the optical axis. When viewed from beyond the real images an observer sees a separate stereo view in each eye which combine to provide a 3-D picture.
Inventors
- 👤 Paul S. Kempf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:33
CPC Classifications
G; G02; G02B; G02B17/00; G02B17/02; G02B17/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
170 words
Apparatus for creating a stereo image display from right and left stereo views of a common object, comprising: a concave mirror; two contiguous reflecting mirrors whose juncture is located at or near the conjugate point of the image plane of the entrance pupils of the eyes of an observer, said reflecting mirrors being positioned and orientated for separately directing light rays from right and left stereo views, respectively, of a common object onto the concave mirror such that the light rays are focussed after reflection from the concave mirror; the concave mirror comprising means for focussing the right and left view light rays directed from the reflecting mirrors into a right and left real image in space between the concave mirror and the eyes of an observer, both real images being superimposed in apparent registration in the same plane at their point of focus to the eyes of an observer positioned beyond their point of focus for being viewed by an observer on or off axis to the concave mirror.
Claim 2
Dependent Claim
170 words
Apparatus for creating a stereo image display from right and left stereo views of a common object, comprising: a concave mirror; two contiguous reflecting mirrors whose juncture is located at or near the conjugate point of the image plane of the entrance pupils of the eyes of an observer, said reflecting mirrors being positioned and orientated for separately directing light rays from right and left stereo views, respectively, of a common object onto the concave mirror such that the light rays are focussed after reflection from the concave mirror; the concave mirror comprising means for focussing the right and left view light rays directed from the reflecting mirrors into a right and left real image in space between the concave mirror and the eyes of an observer, both real images being superimposed in apparent registration in the same plane at their point of focus to the eyes of an observer positioned beyond their point of focus for being viewed by an observer on or off axis to the concave mirror.
Claim 3
Dependent Claim
24 words
Apparatus according to claim 1, wherein: said mirrors have their reflecting axes rotated to produce left and right real images superimposed in planar registration.
Claim 4
Dependent Claim
15 words
Apparatus according to claim 1 wherein: said right and left stereo views comprise video images.
Claim 5
Dependent Claim
14 words
Apparatus according to claim 1 wherein: said concave mirror comprises a concave spherical mirror.
Claim 6
Dependent Claim
13 words
Apparatus according to claim 1 wherein: said concave mirror comprises an aspheric mirror.
Claim 7
Dependent Claim
20 words
Apparatus according to claim 1 wherein: said left and right real images of said object are superimposed in planar alignment.
Claim 8
Dependent Claim
13 words
Apparatus according to claim 5 wherein: said aspheric mirror comprises an elliptical mirror.
Claim 9
Dependent Claim
12 words
Apparatus according to claim 1 wherein: said reflecting mirrors comprise planar mirrors.
Claim 10
Dependent Claim
27 words
Apparatus according to claim 1 wherein: said left and right stereo views comprises images each having planar aspect canted from the planar aspect of the other image.
Claim 11
Dependent Claim
20 words
Apparatus according to claim 1 wherein: the right and left stereo views comprise alternating images from a single video monitor.
Claim 12
Dependent Claim
26 words
Apparatus according to claim 1 wherein: the contiguous mirrors are occulted synchronously with the right and left stereo views to the respective right and left eyes.
Claim 13
Dependent Claim
44 words
Apparatus according to claim 1 wherein: a beamsplitter (half-mirror) is employed to reflect the images from the reflecting mirrors into the concave mirror and to transmit the images reflected from the concave mirror through the beamsplitter on axis to the eyes of the observer.
Claim 14
Dependent Claim
174 words
Apparatus for creating a stereo image from right and left stereo views of a common object, comprising: a concave mirror; two contiguous reflecting mirrors for reflecting right and left stereo views of a common object separately onto the concave mirror such that the light rays from the two views are non-converging on arrival at the concave mirror and converge and cross over one another after reflection from the concave mirror; the concave mirror comprising means for focussing right and left real images of the object in the same plane in space between the concave mirror and an observer positioned beyond the point of focus of the real images, the real images being formed at the point of crossover of light rays from the left and right views; said real images being directed into corresponding eyes of an observer positioned at the conjugate point of the two reflecting mirrors and beyond the point of focus of the images, and being superimposed in apparent visual registration in the same plane to the eyes of the observer.
Claim 15
Dependent Claim
174 words
Apparatus for creating a stereo image from right and left stereo views of a common object, comprising: a concave mirror; two contiguous reflecting mirrors for reflecting right and left stereo views of a common object separately onto the concave mirror such that the light rays from the two views are non-converging on arrival at the concave mirror and converge and cross over one another after reflection from the concave mirror; the concave mirror comprising means for focussing right and left real images of the object in the same plane in space between the concave mirror and an observer positioned beyond the point of focus of the real images, the real images being formed at the point of crossover of light rays from the left and right views; said real images being directed into corresponding eyes of an observer positioned at the conjugate point of the two reflecting mirrors and beyond the point of focus of the images, and being superimposed in apparent visual registration in the same plane to the eyes of the observer.
Claim 16
Independent Claim
184 words
A method for producing a stereo image comprising the steps of: positioning a first mirror to reflect a right stereo view of an object onto a concave mirror; positioning a second mirror contiguous with the first mirror to reflect a left stereo view of the same object onto the concave mirror separately from the right stereo view, the positioning and relative orientation of the two mirrors being such that light rays from the left and right stereo view do not converge or cross over between the mirrors and the concave mirror; forming right and left real images in space of the right and left stereo views by reflection from the concave mirror, the point of focus of the real images being located between the concave mirror and the eyes of an observer and at the crossover point of the left and right eye view light rays reflected from the first and second mirrors, respectively, and the concave mirror, and directing the respective right and left images into the corresponding eye of the observer located at the conjugate point of first and second contiguous mirrors.
Claim 17
Independent Claim
184 words
A method for producing a stereo image comprising the steps of: positioning a first mirror to reflect a right stereo view of an object onto a concave mirror; positioning a second mirror contiguous with the first mirror to reflect a left stereo view of the same object onto the concave mirror separately from the right stereo view, the positioning and relative orientation of the two mirrors being such that light rays from the left and right stereo view do not converge or cross over between the mirrors and the concave mirror; forming right and left real images in space of the right and left stereo views by reflection from the concave mirror, the point of focus of the real images being located between the concave mirror and the eyes of an observer and at the crossover point of the left and right eye view light rays reflected from the first and second mirrors, respectively, and the concave mirror, and directing the respective right and left images into the corresponding eye of the observer located at the conjugate point of first and second contiguous mirrors.
References Cited (Backward Citations)
US2045120A
Cited
US3447854A
Cited
US3572893A
Cited
US3785715A
Cited
US3964818A
Cited
US4322743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |