BE664376A - - Google Patents
Info
- Publication number
- BE664376A BE664376A BE664376DA BE664376A BE 664376 A BE664376 A BE 664376A BE 664376D A BE664376D A BE 664376DA BE 664376 A BE664376 A BE 664376A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
- G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/23—Photochromic filters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Optics & Photonics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33292163A | 1963-12-23 | 1963-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE664376A true BE664376A (de) | 1965-11-24 |
Family
ID=23300448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE664376D BE664376A (de) | 1963-12-23 | 1965-05-24 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE664376A (de) |
| DE (1) | DE1292880B (de) |
| GB (1) | GB1078695A (de) |
| NL (1) | NL6407696A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3660299A (en) * | 1969-04-10 | 1972-05-02 | American Optical Corp | Variable density light filtering means utilizing leuco phenazine dyes |
| JPS5339036B2 (de) * | 1973-10-29 | 1978-10-19 | ||
| US4166043A (en) * | 1974-12-23 | 1979-08-28 | American Optical Corporation | Stabilized photochromic materials |
-
1964
- 1964-07-07 NL NL6407696A patent/NL6407696A/xx unknown
- 1964-08-26 GB GB3501764A patent/GB1078695A/en not_active Expired
- 1964-12-18 DE DE1964A0047933 patent/DE1292880B/de active Pending
-
1965
- 1965-05-24 BE BE664376D patent/BE664376A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1292880B (de) | 1969-04-17 |
| NL6407696A (de) | 1965-06-24 |
| GB1078695A (en) | 1967-08-09 |