GB385623A - Improvements in or relating to means for the production of stereoscopic representations of objects - Google Patents
Improvements in or relating to means for the production of stereoscopic representations of objectsInfo
- Publication number
- GB385623A GB385623A GB979231A GB979231A GB385623A GB 385623 A GB385623 A GB 385623A GB 979231 A GB979231 A GB 979231A GB 979231 A GB979231 A GB 979231A GB 385623 A GB385623 A GB 385623A
- Authority
- GB
- United Kingdom
- Prior art keywords
- objective
- objectives
- prism
- reflectors
- focal plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B35/00—Stereoscopic photography
- G03B35/18—Stereoscopic photography by simultaneous viewing
- G03B35/20—Stereoscopic photography by simultaneous viewing using two or more projectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Stereoscopic And Panoramic Photography (AREA)
Abstract
385,623. Stereoscopic photography. SAVAGE, L. F., 20, Old Compton Street, London. March 31, 1931, No. 9792. [Classes 97 (i) and 98 (i).] An optical system for the production of stereoscopic photographs &c. by projecting the separare view point images in opposite directions on a common focal plane which contains the axis of binocular vision, comprises two objectives and an arrangement of reflectors giving, in the case of one objective, a single reflection, and in the case of the other objective, two reflections to secure correct disposition of the image, means being provided to compensate the difference between the lengths of path of the two beams resulting from the extra reflection of one of them. In the Figure, the rays passing through the objective a undergo a single reflection by the prism b while those from the objective a<1> undergo two reflections by the prism c to give correctly disposed images in the focal plane d. The extra ray path through the prism c is compensated by extending the prism b to form a block b<1>, and the difference between the image sizes due to the objective a being nearer the object plane is compensated by placing a block e of glass &c. in front of the objective a<1>. Alternatively either of the above-mentioned compensations may be effected by using dissimilar objectives or by adding components to one of two similar objectives. The objectives may be between the reflectors and the focal plane. The effective separation of the view points may be varied by placing in front of the objectives &c. rhomboidal prisms or other reflectors producing lateral displacement of the rays. Specification 385,624 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB979231A GB385623A (en) | 1931-03-31 | 1931-03-31 | Improvements in or relating to means for the production of stereoscopic representations of objects |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB979231A GB385623A (en) | 1931-03-31 | 1931-03-31 | Improvements in or relating to means for the production of stereoscopic representations of objects |
Publications (1)
Publication Number | Publication Date |
---|---|
GB385623A true GB385623A (en) | 1933-01-02 |
Family
ID=9878840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB979231A Expired GB385623A (en) | 1931-03-31 | 1931-03-31 | Improvements in or relating to means for the production of stereoscopic representations of objects |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB385623A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2895374A (en) * | 1954-09-14 | 1959-07-21 | James R Forman | Stereo-optical system |
US2991690A (en) * | 1953-09-04 | 1961-07-11 | Polaroid Corp | Stereoscopic lens-prism optical system |
-
1931
- 1931-03-31 GB GB979231A patent/GB385623A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2991690A (en) * | 1953-09-04 | 1961-07-11 | Polaroid Corp | Stereoscopic lens-prism optical system |
US2895374A (en) * | 1954-09-14 | 1959-07-21 | James R Forman | Stereo-optical system |
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