FR1222887A - Voyant - Google Patents
VoyantInfo
- Publication number
- FR1222887A FR1222887A FR786827A FR786827A FR1222887A FR 1222887 A FR1222887 A FR 1222887A FR 786827 A FR786827 A FR 786827A FR 786827 A FR786827 A FR 786827A FR 1222887 A FR1222887 A FR 1222887A
- Authority
- FR
- France
- Prior art keywords
- seeing
- 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
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR786827A FR1222887A (fr) | 1959-02-16 | 1959-02-16 | Voyant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR786827A FR1222887A (fr) | 1959-02-16 | 1959-02-16 | Voyant |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1222887A true FR1222887A (fr) | 1960-06-14 |
Family
ID=8711323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR786827A Expired FR1222887A (fr) | 1959-02-16 | 1959-02-16 | Voyant |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1222887A (fr) |
-
1959
- 1959-02-16 FR FR786827A patent/FR1222887A/fr not_active Expired
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