BE603428A - Dispositif atténuateur de l'intensité lumineuse - Google Patents
Dispositif atténuateur de l'intensité lumineuseInfo
- Publication number
- BE603428A BE603428A BE603428A BE603428A BE603428A BE 603428 A BE603428 A BE 603428A BE 603428 A BE603428 A BE 603428A BE 603428 A BE603428 A BE 603428A BE 603428 A BE603428 A BE 603428A
- Authority
- BE
- Belgium
- Prior art keywords
- light intensity
- attenuator device
- intensity attenuator
- light
- intensity
- 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
- G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve
-
- 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)
- Eyeglasses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT818760 | 1960-05-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE603428A true BE603428A (fr) | 1961-09-01 |
Family
ID=33042645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE603428A BE603428A (fr) | 1960-05-07 | 1961-05-05 | Dispositif atténuateur de l'intensité lumineuse |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE603428A (fr) |
DE (1) | DE1860252U (fr) |
-
1961
- 1961-05-05 BE BE603428A patent/BE603428A/fr unknown
- 1961-05-05 DE DEC8291U patent/DE1860252U/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1860252U (de) | 1962-10-18 |
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