35B/16 deformation lens for motion picture film processing machine
The utility model relates to a film printing equipment, especially relates to a printing lens for the film printer, which is characterized in that the ratio between the focal length f1 of the front lens group 1 and the focal length f3 of the back lens group equals 2, that is: f1/f3=2; the deformatio...
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| Main Authors | , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
16.10.2002
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| Edition | 7 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | The utility model relates to a film printing equipment, especially relates to a printing lens for the film printer, which is characterized in that the ratio between the focal length f1 of the front lens group 1 and the focal length f3 of the back lens group equals 2, that is: f1/f3=2; the deformation coefficient is 2; when in working state, the bus of the cylindrical lens of deformation lens group 2 is vertical to the vertical plane. The utility model has an advantage that no wide-screen lens is needed when screening non-deformation wide-screen film; instead, the normal film screening lens can be used, which is convenient for the users. |
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| AbstractList | The utility model relates to a film printing equipment, especially relates to a printing lens for the film printer, which is characterized in that the ratio between the focal length f1 of the front lens group 1 and the focal length f3 of the back lens group equals 2, that is: f1/f3=2; the deformation coefficient is 2; when in working state, the bus of the cylindrical lens of deformation lens group 2 is vertical to the vertical plane. The utility model has an advantage that no wide-screen lens is needed when screening non-deformation wide-screen film; instead, the normal film screening lens can be used, which is convenient for the users. |
| Author | CHEN CHEN BAOQI WANG |
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| Snippet | The utility model relates to a film printing equipment, especially relates to a printing lens for the film printer, which is characterized in that the ratio... |
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| Title | 35B/16 deformation lens for motion picture film processing machine |
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