NO813396L - Afokalt refraktorteleskop - Google Patents
Afokalt refraktorteleskopInfo
- Publication number
- NO813396L NO813396L NO813396A NO813396A NO813396L NO 813396 L NO813396 L NO 813396L NO 813396 A NO813396 A NO 813396A NO 813396 A NO813396 A NO 813396A NO 813396 L NO813396 L NO 813396L
- Authority
- NO
- Norway
- Prior art keywords
- telescope
- lens element
- afocal
- lens
- refractive index
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 12
- 230000003595 spectral effect Effects 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 210000001747 pupil Anatomy 0.000 description 9
- 238000000926 separation method Methods 0.000 description 7
- 239000005387 chalcogenide glass Substances 0.000 description 4
- 230000004075 alteration Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 241000234479 Narcissus Species 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Astronomy & Astrophysics (AREA)
- Lenses (AREA)
- Telescopes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Oxide Ceramics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8032397 | 1980-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO813396L true NO813396L (no) | 1982-04-13 |
Family
ID=10516547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO813396A NO813396L (no) | 1980-10-08 | 1981-10-07 | Afokalt refraktorteleskop |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4479695A (sv) |
| BE (1) | BE890655A (sv) |
| CH (1) | CH656012A5 (sv) |
| DE (1) | DE3138818A1 (sv) |
| FR (1) | FR2491635A1 (sv) |
| IN (1) | IN154125B (sv) |
| IT (1) | IT1172851B (sv) |
| NL (1) | NL8104194A (sv) |
| NO (1) | NO813396L (sv) |
| SE (1) | SE453868B (sv) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4682862A (en) * | 1986-01-17 | 1987-07-28 | U.S. Precision Lens Incorporated | Projection lens |
| US4776681A (en) * | 1986-01-17 | 1988-10-11 | U.S. Precision Lens, Incorporated | Projection lens |
| US4685774A (en) * | 1986-01-17 | 1987-08-11 | U.S. Precision Lens, Incorporated | Projection lens |
| US4802717A (en) * | 1986-04-21 | 1989-02-07 | Hughes Aircraft Company | Infrared afocal zoom telescope |
| US5055683A (en) * | 1989-12-15 | 1991-10-08 | Mccracken William L | Line scanner |
| US5493441A (en) * | 1994-01-13 | 1996-02-20 | Texas Instruments Incorporated | Infrared continuous zoom telescope using diffractive optics |
| JP3427461B2 (ja) * | 1994-02-18 | 2003-07-14 | 株式会社ニコン | 再結像光学系 |
| US5796514A (en) * | 1996-03-04 | 1998-08-18 | Raytheon Ti Systems, Inc. | Infrared zoom lens assembly having a variable F/number |
| GB9809739D0 (en) * | 1998-05-08 | 1998-07-08 | Pilkington Perkin Elmer Ltd | Afocal telescope |
| GB9809736D0 (en) | 1998-05-08 | 1998-07-08 | Pilkington Perkin Elmer Ltd | Objective lens system |
| GB9809738D0 (en) | 1998-05-08 | 1998-07-08 | Pilkington Perkin Elmer Ltd | Optical systems |
| US5933272A (en) * | 1998-05-28 | 1999-08-03 | The United States Of America As Represented By The Secretary Of The Army | Dual field of view afocal |
| EP1662278A1 (de) * | 2004-11-27 | 2006-05-31 | Leica Geosystems AG | Plankonvex- oder Plankonkavlinse mit damit verbundenem Umlenkmittel |
| US8508864B2 (en) * | 2008-08-25 | 2013-08-13 | Acm Projektentwicklung Gmbh | Objective lens system |
| US7880978B2 (en) * | 2008-08-25 | 2011-02-01 | Acm Projektentwicklung Gmbh | Objective lens system |
| TWI461728B (zh) | 2011-09-02 | 2014-11-21 | Largan Precision Co Ltd | 影像鏡組 |
| US20220299679A1 (en) * | 2021-03-19 | 2022-09-22 | Raytheon Company | Athermal infrared optical telescope and method for manufacturing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4397520A (en) * | 1980-03-05 | 1983-08-09 | Barr & Stroud Limited | Afocal refractor telescopes |
-
1981
- 1981-09-03 US US06/299,200 patent/US4479695A/en not_active Expired - Lifetime
- 1981-09-10 NL NL8104194A patent/NL8104194A/nl not_active Application Discontinuation
- 1981-09-24 IT IT68234/81A patent/IT1172851B/it active
- 1981-09-28 IN IN1086/CAL/81A patent/IN154125B/en unknown
- 1981-09-30 DE DE19813138818 patent/DE3138818A1/de not_active Withdrawn
- 1981-10-07 NO NO813396A patent/NO813396L/no unknown
- 1981-10-07 BE BE2/59405A patent/BE890655A/fr not_active IP Right Cessation
- 1981-10-07 FR FR8118906A patent/FR2491635A1/fr active Granted
- 1981-10-07 SE SE8105942A patent/SE453868B/sv not_active IP Right Cessation
- 1981-10-08 CH CH6463/81A patent/CH656012A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH656012A5 (de) | 1986-05-30 |
| BE890655A (fr) | 1982-02-01 |
| US4479695A (en) | 1984-10-30 |
| IN154125B (sv) | 1984-09-22 |
| DE3138818A1 (de) | 1982-06-03 |
| SE453868B (sv) | 1988-03-07 |
| FR2491635B3 (sv) | 1983-07-08 |
| IT1172851B (it) | 1987-06-18 |
| IT8168234A0 (it) | 1981-09-24 |
| SE8105942L (sv) | 1982-04-09 |
| NL8104194A (nl) | 1982-05-03 |
| FR2491635A1 (fr) | 1982-04-09 |
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