DD97316A1 - - Google Patents
Info
- Publication number
- DD97316A1 DD97316A1 DD16001271A DD16001271A DD97316A1 DD 97316 A1 DD97316 A1 DD 97316A1 DD 16001271 A DD16001271 A DD 16001271A DD 16001271 A DD16001271 A DD 16001271A DD 97316 A1 DD97316 A1 DD 97316A1
- Authority
- DD
- German Democratic Republic
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD16001271A DD97316A1 (en:Method) | 1971-12-21 | 1971-12-21 | |
| DE19722235741 DE2235741A1 (de) | 1971-12-21 | 1972-07-21 | Verfahren zur erzeugung fotochromer systeme |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD16001271A DD97316A1 (en:Method) | 1971-12-21 | 1971-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD97316A1 true DD97316A1 (en:Method) | 1973-04-23 |
Family
ID=5484919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD16001271A DD97316A1 (en:Method) | 1971-12-21 | 1971-12-21 |
Country Status (2)
| Country | Link |
|---|---|
| DD (1) | DD97316A1 (en:Method) |
| DE (1) | DE2235741A1 (en:Method) |
-
1971
- 1971-12-21 DD DD16001271A patent/DD97316A1/xx unknown
-
1972
- 1972-07-21 DE DE19722235741 patent/DE2235741A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2235741A1 (de) | 1973-06-28 |