FR2153447B1 - - Google Patents
Info
- Publication number
- FR2153447B1 FR2153447B1 FR7233769A FR7233769A FR2153447B1 FR 2153447 B1 FR2153447 B1 FR 2153447B1 FR 7233769 A FR7233769 A FR 7233769A FR 7233769 A FR7233769 A FR 7233769A FR 2153447 B1 FR2153447 B1 FR 2153447B1
- Authority
- FR
- France
- 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
- G03B27/00—Photographic printing apparatus
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
- G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Optical Filters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712147261 DE2147261C3 (de) | 1971-09-22 | 1971-09-22 | Optisches Keilfilter und Verfahren zu seiner Herstellung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2153447A1 FR2153447A1 (da) | 1973-05-04 |
| FR2153447B1 true FR2153447B1 (da) | 1976-10-29 |
Family
ID=5820250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7233769A Expired FR2153447B1 (da) | 1971-09-22 | 1972-09-22 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS577410B2 (da) |
| BE (1) | BE789070A (da) |
| DE (1) | DE2147261C3 (da) |
| FR (1) | FR2153447B1 (da) |
| GB (1) | GB1392564A (da) |
| IT (1) | IT965428B (da) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243279C (zh) * | 2002-07-30 | 2006-02-22 | 佳能电子株式会社 | 滤光片制造方法、有该滤光片的光通量光阑装置和照相机 |
-
0
- BE BE789070D patent/BE789070A/xx unknown
-
1971
- 1971-09-22 DE DE19712147261 patent/DE2147261C3/de not_active Expired
-
1972
- 1972-09-20 IT IT5285472A patent/IT965428B/it active
- 1972-09-21 GB GB4368972A patent/GB1392564A/en not_active Expired
- 1972-09-22 FR FR7233769A patent/FR2153447B1/fr not_active Expired
- 1972-09-22 JP JP9472172A patent/JPS577410B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2147261C3 (de) | 1980-02-07 |
| DE2147261A1 (de) | 1973-03-29 |
| JPS577410B2 (da) | 1982-02-10 |
| FR2153447A1 (da) | 1973-05-04 |
| JPS4841752A (da) | 1973-06-18 |
| IT965428B (it) | 1974-01-31 |
| BE789070A (fr) | 1973-03-21 |
| GB1392564A (en) | 1975-04-30 |
| DE2147261B2 (de) | 1979-05-23 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |