BE353322A - - Google Patents
Info
- Publication number
- BE353322A BE353322A BE353322DA BE353322A BE 353322 A BE353322 A BE 353322A BE 353322D A BE353322D A BE 353322DA BE 353322 A BE353322 A BE 353322A
- Authority
- BE
- Belgium
- Prior art keywords
- eye
- screen
- observer
- desc
- rod
- Prior art date
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
- G02C7/16—Shades; shields; Obturators, e.g. with pinhole, with slot
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Rehabilitation Tools (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE353322A true BE353322A (https=) |
Family
ID=27931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE353322D BE353322A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE353322A (https=) |
-
0
- BE BE353322D patent/BE353322A/fr unknown
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