GB343512A - Improvements in or relating to cinematography - Google Patents
Improvements in or relating to cinematographyInfo
- Publication number
- GB343512A GB343512A GB3494029A GB3494029A GB343512A GB 343512 A GB343512 A GB 343512A GB 3494029 A GB3494029 A GB 3494029A GB 3494029 A GB3494029 A GB 3494029A GB 343512 A GB343512 A GB 343512A
- Authority
- GB
- United Kingdom
- Prior art keywords
- images
- objective
- projected
- axis
- plano
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/08—Anamorphotic objectives
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Endoscopes (AREA)
Abstract
343,512. Kinematograph and sound record films. DOUGLASS, L. F., Valparaiso Avenue, Menlo Park, California, U.S.A. Nov. 15, 1929, No. 34940. [Class 97 (i).] Images on a kinematograph film are reduced in width by photographing through an anamorphotic system, and the space thus freed is used to accommodate a sound track ; the projected images are restored to normal proportions by projecting through an anamorphotic system. The field of view of the images may be wider than usual, and they may be taken by placing before the objective 2, a cylindrical plano-convex lens 3, and a cylindrical plano-concave lens 4. The images may be projected by means of a similar system in which the axes of the cylindrical lenses are turned through a right-angle about the projection axis. The images may, alternatively, be taken and projected with the aid of a spherical plano-concave lens 10 (placed before the objective 2 with its axis at approximately 45‹ to the axis of the objective.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3494029A GB343512A (en) | 1929-11-15 | 1929-11-15 | Improvements in or relating to cinematography |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3494029A GB343512A (en) | 1929-11-15 | 1929-11-15 | Improvements in or relating to cinematography |
Publications (1)
Publication Number | Publication Date |
---|---|
GB343512A true GB343512A (en) | 1931-02-16 |
Family
ID=10371831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3494029A Expired GB343512A (en) | 1929-11-15 | 1929-11-15 | Improvements in or relating to cinematography |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB343512A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2938279A (en) * | 1954-09-21 | 1960-05-31 | Gen Precision Inc | Means for producing visual display in grounded aircraft trainers |
US3014402A (en) * | 1953-03-23 | 1961-12-26 | Twentieth Cent Fox Film Corp | Recording and reproducing of pictures enhancing the illusion of realism |
US3157883A (en) * | 1960-06-07 | 1964-11-17 | Glenn J Easter | Wide screen projection system for standard prints |
-
1929
- 1929-11-15 GB GB3494029A patent/GB343512A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3014402A (en) * | 1953-03-23 | 1961-12-26 | Twentieth Cent Fox Film Corp | Recording and reproducing of pictures enhancing the illusion of realism |
US2938279A (en) * | 1954-09-21 | 1960-05-31 | Gen Precision Inc | Means for producing visual display in grounded aircraft trainers |
US3157883A (en) * | 1960-06-07 | 1964-11-17 | Glenn J Easter | Wide screen projection system for standard prints |
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