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US4487490A Expired / Lapsed US ⏱️ 0.0 years remaining

Instantaneous three-dimensional camera

Assignee: Individual
•
Filing: 1982-08-16
•
Granted: 1984-12-11
•
Expires: 2002-08-16
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Abstract

Abstract A camera for taking true three-dimensional photographs in which the camera includes a housing having a lenticulated screen for focusing the image of an object on a plurality of locations on a photographic film. The screen and film are mounted in fixed positions at one end of the housing and light rays from an object to be photographed enter an opening in the housing near the opposite end thereof. A beamsplitter divides the incoming light rays and directs a portion of the light rays onto a mirror which causes the light rays to converge and to be reflected back onto the beamsplitter and then toward and through the lenticulated screen to the film. In one embodiment, the mirror is a concave mirror; in a second embodiment, the mirror is a convex mirror. The only moving part of the camera is the shutter, preferably a curtain shutter.

Inventors

  • 👤 William J. McKee

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 05:31
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/18; G03B35/24

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 143 words
A camera comprising: a housing having an opening for receiving light rays emanating from an object to be photographed, said housing having a space remote from said opening for receiving a photographic film; a lenticular screen between the opening and the film-receiving space, said screen having a first, lenticulated surface and a second flat surface contiguous to said space; and a pair of mirrors in the path of the light rays from the object for forming and inverting the image of the object and for focusing the light rays onto the lenticulated surface of the screen, one of the mirrors being a beamsplitter and the other mirror being a convex mirror, whereby the light rays will be directed through said screen and onto the film when the film is in said space to result in the image of the object on the film.
Claim 2
Dependent Claim 143 words
A camera comprising: a housing having an opening for receiving light rays emanating from an object to be photographed, said housing having a space remote from said opening for receiving a photographic film; a lenticular screen between the opening and the film-receiving space, said screen having a first, lenticulated surface and a second flat surface contiguous to said space; and a pair of mirrors in the path of the light rays from the object for forming and inverting the image of the object and for focusing the light rays onto the lenticulated surface of the screen, one of the mirrors being a beamsplitter and the other mirror being a convex mirror, whereby the light rays will be directed through said screen and onto the film when the film is in said space to result in the image of the object on the film.
Claim 3
Dependent Claim 22 words
A camera as set forth in claim 1, wherein is included a light converging lens between the beamsplitter and the convex mirror.
Claim 4
Dependent Claim 41 words
A camera as set forth in claim 1, wherein said housing is elongated to present a pair of opposed ends, the convex mirror being adjacent to one end of the housing and the screen being adjacent to the opposite end thereof.

References Cited (Backward Citations)

US3675554A Cited
US3882513A Cited
US4180313A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-12-11 1988-06-11 1988-12-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-12-11 1992-06-11 1992-12-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-12-11 1996-06-11 1996-12-11 $7700.00 Window Closed / Lapsed

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