BE740248A - - Google Patents
Info
- Publication number
- BE740248A BE740248A BE740248DA BE740248A BE 740248 A BE740248 A BE 740248A BE 740248D A BE740248D A BE 740248DA BE 740248 A BE740248 A BE 740248A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/201—Filters in the form of arrays
-
- 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
-
- 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
- G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Eyeglasses (AREA)
- Eye Examination Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1001168A AT279209B (en) | 1968-10-14 | 1968-10-14 | Glasses for people with color disorders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE740248A true BE740248A (en) | 1970-04-14 |
Family
ID=3619179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE740248D BE740248A (en) | 1968-10-14 | 1969-10-14 |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5020848B1 (en) |
| AT (1) | AT279209B (en) |
| BE (1) | BE740248A (en) |
| CA (1) | CA941647A (en) |
| CS (1) | CS152334B2 (en) |
| DE (1) | DE1950651A1 (en) |
| FR (1) | FR2020669A1 (en) |
| GB (1) | GB1291453A (en) |
| NL (1) | NL6915549A (en) |
| SU (1) | SU391785A3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2230347A (en) * | 1987-05-15 | 1990-10-17 | Plessey Co Plc | Multi-spectral transmission coatings |
| CA2169771C (en) * | 1993-08-18 | 2000-02-15 | Gyorgy Abraham | Method and optical means for improving or modifying color vision and method for making said optical means |
-
1968
- 1968-10-14 AT AT1001168A patent/AT279209B/en not_active IP Right Cessation
-
1969
- 1969-10-08 DE DE19691950651 patent/DE1950651A1/en active Pending
- 1969-10-10 GB GB4997769A patent/GB1291453A/en not_active Expired
- 1969-10-13 SU SU1371465A patent/SU391785A3/ru active
- 1969-10-14 BE BE740248D patent/BE740248A/xx unknown
- 1969-10-14 NL NL6915549A patent/NL6915549A/xx unknown
- 1969-10-14 JP JP44081645A patent/JPS5020848B1/ja active Pending
- 1969-10-14 CA CA064,774A patent/CA941647A/en not_active Expired
- 1969-10-14 CS CS683669A patent/CS152334B2/cs unknown
- 1969-10-14 FR FR6935150A patent/FR2020669A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| SU391785A3 (en) | 1973-07-25 |
| CA941647A (en) | 1974-02-12 |
| DE1950651A1 (en) | 1970-04-23 |
| NL6915549A (en) | 1970-04-16 |
| FR2020669A1 (en) | 1970-07-17 |
| GB1291453A (en) | 1972-10-04 |
| JPS5020848B1 (en) | 1975-07-18 |
| AT279209B (en) | 1970-02-25 |
| CS152334B2 (en) | 1973-12-19 |