NL7207921A - - Google Patents
Info
- Publication number
- NL7207921A NL7207921A NL7207921A NL7207921A NL7207921A NL 7207921 A NL7207921 A NL 7207921A NL 7207921 A NL7207921 A NL 7207921A NL 7207921 A NL7207921 A NL 7207921A NL 7207921 A NL7207921 A NL 7207921A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
- G02B17/0884—Catadioptric systems having a pupil corrector
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
- G02B17/0804—Catadioptric systems using two curved mirrors
- G02B17/0808—Catadioptric systems using two curved mirrors on-axis systems with at least one of the mirrors having a central aperture
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
- G02B17/0852—Catadioptric systems having a field corrector only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1979171A GB1388545A (en) | 1971-06-09 | 1971-06-09 | Catadioptric lenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7207921A true NL7207921A (xx) | 1972-12-12 |
Family
ID=10135283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7207921A NL7207921A (xx) | 1971-06-09 | 1972-06-09 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE784606A (xx) |
| DE (1) | DE2228235C2 (xx) |
| FR (1) | FR2140472B1 (xx) |
| GB (1) | GB1388545A (xx) |
| IL (1) | IL39647A (xx) |
| NL (1) | NL7207921A (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0237041B1 (en) * | 1986-03-12 | 1993-08-18 | Matsushita Electric Industrial Co., Ltd. | Projection optical system for use in precise copy |
| CN110579859B (zh) * | 2019-09-03 | 2024-08-13 | 佛山科学技术学院 | 一种紧凑型长焦距星敏感器远心光学系统 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1199515B (de) * | 1961-12-23 | 1965-08-26 | Rodenstock Optik G | Spiegelobjektiv |
-
1971
- 1971-06-09 GB GB1979171A patent/GB1388545A/en not_active Expired
-
1972
- 1972-06-06 FR FR7220248A patent/FR2140472B1/fr not_active Expired
- 1972-06-08 BE BE784606A patent/BE784606A/xx not_active IP Right Cessation
- 1972-06-08 IL IL39647A patent/IL39647A/xx unknown
- 1972-06-09 DE DE2228235A patent/DE2228235C2/de not_active Expired
- 1972-06-09 NL NL7207921A patent/NL7207921A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2228235A1 (de) | 1972-12-21 |
| BE784606A (fr) | 1972-10-02 |
| FR2140472A1 (xx) | 1973-01-19 |
| DE2228235C2 (de) | 1981-11-26 |
| GB1388545A (en) | 1975-03-26 |
| FR2140472B1 (xx) | 1977-06-17 |
| IL39647A (en) | 1975-03-13 |
| IL39647A0 (en) | 1972-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |