PL70042B1 - - Google Patents
Info
- Publication number
- PL70042B1 PL70042B1 PL14265570A PL14265570A PL70042B1 PL 70042 B1 PL70042 B1 PL 70042B1 PL 14265570 A PL14265570 A PL 14265570A PL 14265570 A PL14265570 A PL 14265570A PL 70042 B1 PL70042 B1 PL 70042B1
- Authority
- PL
- Poland
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD14330469 | 1969-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL70042B1 true PL70042B1 (en) | 1973-12-31 |
Family
ID=5481771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL14265570A PL70042B1 (en) | 1969-10-27 | 1970-08-13 |
Country Status (5)
| Country | Link |
|---|---|
| CS (1) | CS180102B1 (en) |
| DE (1) | DE2035823A1 (en) |
| FR (1) | FR2065533B1 (en) |
| PL (1) | PL70042B1 (en) |
| SE (1) | SE367712B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2472197A1 (en) * | 1979-12-18 | 1981-06-26 | Cintra Daniel | Fresnel lens for TV screen - has grooves with sidewall being functions of groove and lens radii |
| AU2000231698A1 (en) * | 1999-03-02 | 2000-09-21 | K-Dream | Image projection device and cooking appliance, electric or home automation household appliance and image projection system using said device |
-
1970
- 1970-07-18 DE DE19702035823 patent/DE2035823A1/en active Pending
- 1970-07-22 FR FR7027069A patent/FR2065533B1/fr not_active Expired
- 1970-08-13 PL PL14265570A patent/PL70042B1/xx unknown
- 1970-10-26 SE SE1440670A patent/SE367712B/xx unknown
- 1970-10-27 CS CS727170A patent/CS180102B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2065533B1 (en) | 1973-10-19 |
| DE2035823A1 (en) | 1971-04-29 |
| CS180102B1 (en) | 1977-12-30 |
| SE367712B (en) | 1974-06-04 |
| FR2065533A1 (en) | 1971-07-30 |