FR735457A - écran anti-éblouissement - Google Patents
écran anti-éblouissementInfo
- Publication number
- FR735457A FR735457A FR735457DA FR735457A FR 735457 A FR735457 A FR 735457A FR 735457D A FR735457D A FR 735457DA FR 735457 A FR735457 A FR 735457A
- Authority
- FR
- France
- Prior art keywords
- glare screen
- glare
- screen
- 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
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C7/105—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having inhomogeneously distributed colouring
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C9/00—Attaching auxiliary optical parts
- G02C9/02—Attaching auxiliary optical parts by hinging
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US735457XA | 1931-04-07 | 1931-04-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR735457A true FR735457A (fr) | 1932-11-09 |
Family
ID=22114341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR735457D Expired FR735457A (fr) | 1931-04-07 | 1932-04-01 | écran anti-éblouissement |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR735457A (fr) |
-
1932
- 1932-04-01 FR FR735457D patent/FR735457A/fr not_active Expired
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