CH569304A5 - - Google Patents
Info
- Publication number
- CH569304A5 CH569304A5 CH535474A CH535474A CH569304A5 CH 569304 A5 CH569304 A5 CH 569304A5 CH 535474 A CH535474 A CH 535474A CH 535474 A CH535474 A CH 535474A CH 569304 A5 CH569304 A5 CH 569304A5
- Authority
- CH
- Switzerland
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
- G03B27/00—Photographic printing apparatus
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
- G03B27/727—Optical projection devices wherein the contrast is controlled optically (e.g. uniform exposure, two colour exposure on variable contrast sensitive material)
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Projection-Type Copiers In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2321002A DE2321002A1 (de) | 1973-04-26 | 1973-04-26 | Vorrichtung zur belichtung von probebelichtungsfilmen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH569304A5 true CH569304A5 (xx) | 1975-11-14 |
Family
ID=5879224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH535474A CH569304A5 (xx) | 1973-04-26 | 1974-04-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3901598A (xx) |
| BE (1) | BE814049A (xx) |
| CH (1) | CH569304A5 (xx) |
| DE (1) | DE2321002A1 (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4182560A (en) * | 1975-07-23 | 1980-01-08 | Konishiroku Photo Industry Co. Ltd. | Color printing method |
| US4257702A (en) * | 1977-07-05 | 1981-03-24 | Miller Bertram W | Apparatus for ascertaining color balance of photographic printing paper |
| US4368974A (en) * | 1980-05-02 | 1983-01-18 | Ciba-Geigy Ag | Illuminating system for producing prints on variable contrast photosensitive material, filter strip for said system and lamphouse comprising the same |
| US4468123A (en) * | 1982-05-26 | 1984-08-28 | Miller Bertram W | Method and apparatus for ascertaining color balance of photographic printing paper |
| US5083154A (en) * | 1990-04-02 | 1992-01-21 | Fuji Photo Film Co., Ltd. | Copying apparatus, print evaluating method for copying apparatus, method for setting printing conditions, and copying apparatus controller |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2053317A (en) * | 1933-11-03 | 1936-09-08 | Billing Noel Pemberton | Photographic printing or enlarging apparatus |
| US2291347A (en) * | 1941-07-18 | 1942-07-28 | Polaroid Corp | Light filter |
| US3469914A (en) * | 1966-11-04 | 1969-09-30 | Charles Leslie Thomson | Enlarger head for use with variable contrast paper |
-
1973
- 1973-04-26 DE DE2321002A patent/DE2321002A1/de active Pending
-
1974
- 1974-04-18 CH CH535474A patent/CH569304A5/xx not_active IP Right Cessation
- 1974-04-23 BE BE1005901A patent/BE814049A/xx unknown
- 1974-04-26 US US464687A patent/US3901598A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2321002A1 (de) | 1974-11-14 |
| BE814049A (nl) | 1974-10-23 |
| US3901598A (en) | 1975-08-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |