BE667505A - - Google Patents
Info
- Publication number
- BE667505A BE667505A BE667505DA BE667505A BE 667505 A BE667505 A BE 667505A BE 667505D A BE667505D A BE 667505DA BE 667505 A BE667505 A BE 667505A
- Authority
- BE
- Belgium
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
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/08—Auxiliary lenses; Arrangements for varying focal length
- G02C7/086—Auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity of main spectacles
-
- 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
- G02C9/04—Attaching auxiliary optical parts by fitting over or clamping on
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Eyeglasses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6007444 | 1964-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE667505A true BE667505A (en) | 1965-11-16 |
Family
ID=8970468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE667505D BE667505A (en) | 1964-07-29 | 1965-07-28 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE667505A (en) |
| CH (1) | CH418000A (en) |
-
1965
- 1965-07-24 CH CH1056465A patent/CH418000A/en unknown
- 1965-07-28 BE BE667505D patent/BE667505A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH418000A (en) | 1966-07-31 |