US3675554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for recording and reproducing steroscopic images
Assignee: Bpifrance Financement SA
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Filing: 1971-03-08
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Granted: 1972-07-11
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Expires: 1991-03-08
Abstract
Abstract The device allows one to photograph an object and to reproduce it by giving to the observer the feeling of seeing this object true-to-life and full-size. The device consists of an optical unit having at least an objective which forms, in each position taken by the unit, the image of an object being on an optical system directing the rays to a frame holding a cylindrical lenticular element film coated with a sensitive layer recording successively all composite images thus transmitted and which, during reproduction, will allow an observer to view a relief image of the object under the same conditions as a direct and actual view of this object. Such a device can be used for relief photography.
Inventors
- 👤 Maurice Bonnet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:38
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/18; G03B35/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
161 words
A device for recording and reproducing stereoscopic images, said device comprising a parallelepipedic chamber with upstanding sides, one of said sides having a window formed therein, a frame mounted in such chamber carrying cylindrical lenticular element film coated with a sensitive layer capable of recording successively all composite images transmitted thereto, an optical unit including at least an objective which provides in each position of said optical unit an image of an object to infinity, mounting means for removably mounting said optical unit on said chamber in general alignment with said window, said mounting means including moving means for moving said optical unit generally across said window while remaining in alignment therewith, an optical system within said chamber for receiving rays defining an image of an object from said optical unit And directing such rays to said film, and said window also defining a viewing opening for viewing said film subsequent to the development thereof after said optical unit is removed.
Claim 2
Independent Claim
161 words
A device for recording and reproducing stereoscopic images, said device comprising a parallelepipedic chamber with upstanding sides, one of said sides having a window formed therein, a frame mounted in such chamber carrying cylindrical lenticular element film coated with a sensitive layer capable of recording successively all composite images transmitted thereto, an optical unit including at least an objective which provides in each position of said optical unit an image of an object to infinity, mounting means for removably mounting said optical unit on said chamber in general alignment with said window, said mounting means including moving means for moving said optical unit generally across said window while remaining in alignment therewith, an optical system within said chamber for receiving rays defining an image of an object from said optical unit And directing such rays to said film, and said window also defining a viewing opening for viewing said film subsequent to the development thereof after said optical unit is removed.
Claim 3
Dependent Claim
68 words
The device according to claim 1, in which the optical system which directs the rays to the sensitive layer is made of an element chosen along a field lens and an objective, the whole of this system and the holder frame being made movable and moving in a parallel direction with the linear moving direction of the optical unit, but by moving twice as far as this unit.
Claim 4
Dependent Claim
108 words
The device according to claim 1, in which the optical system includes a concave mirror, said frame and said mirror are fixed, the optical unit includes two prisms each having an output axis, and said optical system also includes a semi-transparent separator plane mirror disposed between said concave mirror and the output face of the second prism, said semi-transparent separator plane mirror being inclined at a 45* angle to the output axis of said second prism, and said concave mirror being located perpendicular to the output axis of said second prism and the film sensitive layer being located in a parallel direction with said second prism output axis.
Claim 5
Independent Claim
188 words
A device for recording and reproducing stereoscopic image comprising a parallelepipedic chamber with upright side walls, one of said side walls having a first rectangular window, an optical unit, means mounting said optical unit generally in alignment with said window for movement in a longitudinal direction, said optical unit having an objective located between two prisms, said chamber having mounted on a horizontal wall thereof adjacent to said one side wall a second rectangular window of larger dimensions than the first window, and a frame holding a cylindrical lenticular element film coated with a sensitive layer inserted in said second window, one of said prisms being capable of collecting the successive images of an object and reflecting them towards the objective for projection thereby on the second prism, said second prism having a beam axis and being positioned for reflecting them to a concave mirror mounted in the chamber along the wall opposite to the one wall carrying said optical unit, and a semi-transparent separator plane mirror crossing and inclined at a 45* angle with respect to the beam axis for directing the rays to the sensitive layer.
Claim 6
Independent Claim
188 words
A device for recording and reproducing stereoscopic image comprising a parallelepipedic chamber with upright side walls, one of said side walls having a first rectangular window, an optical unit, means mounting said optical unit generally in alignment with said window for movement in a longitudinal direction, said optical unit having an objective located between two prisms, said chamber having mounted on a horizontal wall thereof adjacent to said one side wall a second rectangular window of larger dimensions than the first window, and a frame holding a cylindrical lenticular element film coated with a sensitive layer inserted in said second window, one of said prisms being capable of collecting the successive images of an object and reflecting them towards the objective for projection thereby on the second prism, said second prism having a beam axis and being positioned for reflecting them to a concave mirror mounted in the chamber along the wall opposite to the one wall carrying said optical unit, and a semi-transparent separator plane mirror crossing and inclined at a 45* angle with respect to the beam axis for directing the rays to the sensitive layer.
Claim 7
Dependent Claim
36 words
The device according to claim 1 in which the mounting means includes rails fixed on the one wall slidably mounting said optical unit, and an electrical motor coupled to said optical unit for sliding the same.
Claim 8
Dependent Claim
75 words
The device according to claim 4 wherein said mounting means includes a dark-slide shutter curtain rolling up around two cylinders mounted on said one side wall and spaced from both sides of the optical unit, said shutter curtain having a window corresponding with an output opening of said optical unit and sealed relative thereto thereby ensuring the light-tightness of the chamber from both sides of said optical unit during the displacement of the optical unit.
Claim 9
Dependent Claim
30 words
The device of claim 6 in which the linear movement of the optical unit and of the dark-slide shutter curtain is obtained through a motor via a cable and pulleys.
Claim 10
Dependent Claim
182 words
The device of claim 1 wherein said frame is mounted in an opening of a second wall of said chamber, and said device, when utilized in viewing recorded and developed composite images, includes a case having an end means for mounting said chamber inverted 180* from its normal position and seated on said second wall, said case containing a light source, an optical surface with cylindrical lenticular elements receiving rays from said light source, and a field lens of sufficiently large dimensions for covering the opening of the chamber second wall equipped with the frame holding the cylindrical lenticular element film whose sensitive surface has been acted upon, and the lenticular elements of said optical surface being oriented perpendicular with respect To the lenticular elements of the film, the images on said film being observable through said window in said one side of the chamber on the concave mirror of this latter and through the semi-transparent separator plane mirror with said concave mirror and said semi-transparent separator plane mirror functioning in a manner opposite to that thereof during shooting of a picture.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |