Schmidt telescope
E375985
A Schmidt telescope is a wide-field reflecting telescope design that uses a spherical primary mirror and a correcting lens to capture sharp images over a large area of the sky.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Schmidt camera | 4 |
| Schmidt telescope canonical | 2 |
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
telescope design
ⓘ
wide-field reflecting telescope ⓘ |
| correctorPlatePosition | at or near telescope aperture ⓘ |
| correctsAberration |
coma (partially)
ⓘ
spherical aberration ⓘ |
| designedTo | capture sharp images over a large area of the sky ⓘ |
| enables |
discovery of faint, extended astronomical objects
ⓘ
systematic photographic sky surveys ⓘ |
| fieldCorrectionMethod | aspheric corrector plate at entrance pupil ⓘ |
| firstBuiltAt | Hamburg Observatory ⓘ |
| hasAdvantage |
large corrected field
ⓘ
low optical distortion over wide field ⓘ |
| hasCorrectorLocation | center of curvature of primary mirror ⓘ |
| hasCorrectorType | aspheric lens ⓘ |
| hasDisadvantage |
corrector plate can be large and heavy for big apertures
ⓘ
curved focal surface complicates detector mounting ⓘ |
| hasFieldOfView | wide field of view ⓘ |
| hasFocalSurface | curved focal plane ⓘ |
| hasHistoricalImportance | revolutionized photographic sky surveys in 20th century ⓘ |
| hasOpticalConfiguration | prime-focus design ⓘ |
| hasPrimaryMirrorShape | spherical mirror ⓘ |
| hasVariant |
Baker–Nunn camera
ⓘ
Schmidt–Cassegrain telescope design ⓘ
surface form:
Schmidt–Cassegrain telescope
|
| influencedDesign |
Schmidt telescope
self-linksurface differs
ⓘ
surface form:
Schmidt camera
Schmidt–Cassegrain telescope design ⓘ
surface form:
Schmidt–Cassegrain telescope
|
| inventedBy | Bernhard Schmidt ⓘ |
| inventionYear | 1930 ⓘ |
| inventorNationality | Estonian-German ⓘ |
| isNamedAfter | Bernhard Schmidt ⓘ |
| isTypeOf | catadioptric telescope ⓘ |
| lightPath | single reflection from primary mirror to focal surface ⓘ |
| mountingType | various telescope mounts ⓘ |
| notableExample |
ESO Schmidt Telescope at La Silla Observatory
ⓘ
Palomar 48-inch Schmidt Telescope ⓘ
surface form:
Palomar Observatory Oschin Schmidt Telescope
UK Schmidt Telescope ⓘ
surface form:
UK Schmidt Telescope at Siding Spring Observatory
|
| optimizedFor | wide-field imaging ⓘ |
| primaryMirrorType | fixed spherical mirror ⓘ |
| typicallyUsesDetector |
CCD detector (modern)
ⓘ
photographic plate (historically) ⓘ |
| typicalUse |
astronomical sky surveys
ⓘ
comet and asteroid searches ⓘ mapping Milky Way structure ⓘ wide-field astrophotography ⓘ |
| usedBy |
amateur astronomers (smaller versions)
ⓘ
professional observatories ⓘ |
| usesOpticalElement | Schmidt corrector plate ⓘ |
| usesOpticalSystem | combination of mirror and lens ⓘ |
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Schmidt camera
this entity surface form:
Schmidt camera
this entity surface form:
Schmidt camera
this entity surface form:
Schmidt camera