BE686973A - - Google Patents
Info
- Publication number
- BE686973A BE686973A BE686973DA BE686973A BE 686973 A BE686973 A BE 686973A BE 686973D A BE686973D A BE 686973DA BE 686973 A BE686973 A BE 686973A
- 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
- G02B5/205—Neutral density filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Joining Of Glass To Other Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU50618 | 1966-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE686973A true BE686973A (ko) | 1967-03-01 |
Family
ID=19724747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE686973D BE686973A (ko) | 1966-03-10 | 1966-09-16 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE686973A (ko) |
| ES (1) | ES336455A1 (ko) |
| FR (1) | FR1501242A (ko) |
| LU (1) | LU50618A1 (ko) |
| NL (1) | NL6701937A (ko) |
-
1966
- 1966-03-10 LU LU50618D patent/LU50618A1/xx unknown
- 1966-09-16 BE BE686973D patent/BE686973A/xx unknown
- 1966-11-10 FR FR83416A patent/FR1501242A/fr not_active Expired
-
1967
- 1967-02-04 ES ES336455A patent/ES336455A1/es not_active Expired
- 1967-02-08 NL NL6701937A patent/NL6701937A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6701937A (ko) | 1967-09-11 |
| ES336455A1 (es) | 1968-01-01 |
| LU50618A1 (ko) | 1967-09-11 |
| FR1501242A (fr) | 1967-11-10 |