BE689708A - - Google Patents
Info
- Publication number
- BE689708A BE689708A BE689708DA BE689708A BE 689708 A BE689708 A BE 689708A BE 689708D A BE689708D A BE 689708DA BE 689708 A BE689708 A BE 689708A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/23—Photochromic filters
-
- 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
- G02C7/102—Photochromic filters
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
- G02C2202/16—Laminated or compound lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Health & Medical Sciences (AREA)
- Liquid Crystal (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4866565A GB1171294A (en) | 1965-11-16 | 1965-11-16 | Light-Transmitting Screens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE689708A true BE689708A (enrdf_load_stackoverflow) | 1967-05-16 |
Family
ID=10449466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE689708D BE689708A (enrdf_load_stackoverflow) | 1965-11-16 | 1966-11-16 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE689708A (enrdf_load_stackoverflow) |
| GB (1) | GB1171294A (enrdf_load_stackoverflow) |
| NL (1) | NL6615996A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101263407A (zh) * | 2005-09-15 | 2008-09-10 | 皇家飞利浦电子股份有限公司 | 光学滤光器 |
| US9535264B2 (en) * | 2012-07-13 | 2017-01-03 | Adlens Beacon, Inc. | Fluid lenses, lens blanks, and methods of manufacturing the same |
| WO2015136088A1 (en) * | 2014-03-14 | 2015-09-17 | Essilor International (Compagnie Generale D'optique) | An optical see-trough head-mounted device |
-
1965
- 1965-11-16 GB GB4866565A patent/GB1171294A/en not_active Expired
-
1966
- 1966-11-14 NL NL6615996A patent/NL6615996A/xx unknown
- 1966-11-16 BE BE689708D patent/BE689708A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6615996A (enrdf_load_stackoverflow) | 1967-01-25 |
| GB1171294A (en) | 1969-11-19 |