GB729602A - Telescope for levelling and similar instruments - Google Patents

Telescope for levelling and similar instruments

Info

Publication number
GB729602A
GB729602A GB5078/53A GB507853A GB729602A GB 729602 A GB729602 A GB 729602A GB 5078/53 A GB5078/53 A GB 5078/53A GB 507853 A GB507853 A GB 507853A GB 729602 A GB729602 A GB 729602A
Authority
GB
United Kingdom
Prior art keywords
mirror
telescope
plate
small
concave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5078/53A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB729602A publication Critical patent/GB729602A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Telescopes (AREA)

Abstract

729,602. Sighting telescopes. ZEISS STIFTUNG, C., [trading as ZEISS, C. [Firm of].]. Feb. 24, 1953 [Feb. 27, 1952], No. 5078/53. Class 97 (1). To maintain the line of sight of a telescope constant independent of small rotations about a horizontal axis it is combined with a collective system receiving light from the object and directing it to a small accessory mirror located in its focal plane whence it passes to a concave spherical mirror also having its focus at the auxiliary mirror so forming a collimated beam which passes to the telescope, the concave mirror being pendulously mounted about a point lying on the optical axis of the collective system as mirrored by the small mirror and at a distance from the centre of curvature of the concave mirror equal to the focal length of the collective system. As shown, light from the object, after passing a Schmidt correcting plate b is focused by a concave mirror a on a small mirror c fixed relative thereto. Light from this image is collimated by a spherical mirror d, passes a Schmidt plate e at the centre of curvature A of the mirror d and reaches the observing telescope g, h via a mirror f. The concave reflector d and plate e are pivoted about point B, the distance of which from the point A is equal to the focal length of the mirror a. All the elements except the mirror d and plate e are rigidly attached together so that as they execute small oscillations about an horizontal axis the mirror d and plate e remain fixed with respect to the vertical and so maintain the line of sight through the centre i of the telescope graticule.
GB5078/53A 1952-02-27 1953-02-24 Telescope for levelling and similar instruments Expired GB729602A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE729602X 1952-02-27

Publications (1)

Publication Number Publication Date
GB729602A true GB729602A (en) 1955-05-11

Family

ID=6635983

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5078/53A Expired GB729602A (en) 1952-02-27 1953-02-24 Telescope for levelling and similar instruments

Country Status (1)

Country Link
GB (1) GB729602A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115202061A (en) * 2022-07-11 2022-10-18 中国科学院长春光学精密机械与物理研究所 Main optical system assembling, adjusting and aligning method of large-aperture telescope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115202061A (en) * 2022-07-11 2022-10-18 中国科学院长春光学精密机械与物理研究所 Main optical system assembling, adjusting and aligning method of large-aperture telescope

Similar Documents

Publication Publication Date Title
GB394285A (en) Improvements in supplementary devices for optical observation instruments
US3531176A (en) Multiple telescope stabilizing optical system
US2741940A (en) Telescope
GB729602A (en) Telescope for levelling and similar instruments
US3951553A (en) Apparatus for aiming a gun
GB1405122A (en) Sighting and tracking apparatus
US3588250A (en) Telemetric telescope for direct firing arms
GB878463A (en) Improvements in and relating to optical instruments
US2638814A (en) Reflecting telescope
US1167991A (en) Illuminating means for telescope cross-hairs.
GB1455029A (en) Apparatus for checking the line of sight of a telescope in relation to that of an infra-red goniometer
US2428797A (en) Wide angle binocular telescope and range finder
GB684292A (en) Improvements in or relating to optical aligning instruments
GB650826A (en) Improvements in or relating to optical apparatus
SU382046A1 (en) MENICA TELE OBJECT
US3526447A (en) Optical systems
GB563973A (en) Optical comparators
GB873434A (en) Improvements in or relating to optical measuring or testing apparatus
SU109685A1 (en) Optical microscope attachment
SU62878A1 (en) Optical range finder
GB1093131A (en) Stabilised telescope
GB645619A (en) Improvements in or relating to optical projection systems
GB476147A (en) Improvements in telescopes
GB877877A (en) Optical compensator and tilt detector
GB1118022A (en) Improvements in or relating to periscopes