FIELD: photography. SUBSTANCE: negative is projected on to photochrome screen 4 with the use of quartz lamp 1 and lens 2. Screen 4 is viewed through window 10 with lighted up lamp 5. Clear areas of screen 4 become light and opaque areas remain dark. Image turns into positive one. EFFECT: simplified design of equipment to review photomaterials. 8 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| OPTICAL PROJECTION SYSTEM FOR COPYING DEVICE | 0 |
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| DEVICE FOR COLORED ADDITIVE PHOTOGRAPHIC PRINTING | 1989 |
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| COLOR-CORRECTING MASK PRODUCING METHOD | 0 |
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SU1030765A1 |
