FR859877A - Mode of production of projection relief - Google Patents
Mode of production of projection reliefInfo
- Publication number
- FR859877A FR859877A FR859877DA FR859877A FR 859877 A FR859877 A FR 859877A FR 859877D A FR859877D A FR 859877DA FR 859877 A FR859877 A FR 859877A
- Authority
- FR
- France
- Prior art keywords
- production
- mode
- projection relief
- relief
- projection
- Prior art date
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/12—Fluid-filled or evacuated lenses
- G02B3/14—Fluid-filled or evacuated lenses of variable focal length
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR859877T | 1939-06-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR859877A true FR859877A (en) | 1940-12-31 |
Family
ID=9330692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR859877D Expired FR859877A (en) | 1939-06-01 | 1939-06-01 | Mode of production of projection relief |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR859877A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2836101A (en) * | 1955-09-01 | 1958-05-27 | Swart Dev Company De | Optical elements |
-
1939
- 1939-06-01 FR FR859877D patent/FR859877A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2836101A (en) * | 1955-09-01 | 1958-05-27 | Swart Dev Company De | Optical elements |
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