GB1093131A - Stabilised telescope - Google Patents

Stabilised telescope

Info

Publication number
GB1093131A
GB1093131A GB2925363A GB2925363A GB1093131A GB 1093131 A GB1093131 A GB 1093131A GB 2925363 A GB2925363 A GB 2925363A GB 2925363 A GB2925363 A GB 2925363A GB 1093131 A GB1093131 A GB 1093131A
Authority
GB
United Kingdom
Prior art keywords
objective
lens system
prisms
optical axis
instrument
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
GB2925363A
Inventor
David Scarth Ritchie
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.)
Thales Optronics Ltd
Original Assignee
Thales Optronics Ltd
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 Thales Optronics Ltd filed Critical Thales Optronics Ltd
Priority to GB2925363A priority Critical patent/GB1093131A/en
Priority to NL6408492A priority patent/NL6408492A/xx
Publication of GB1093131A publication Critical patent/GB1093131A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/644—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for large deviations, e.g. maintaining a fixed line of sight while a vehicle on which the system is mounted changes course
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telescopes (AREA)

Abstract

1,093,131. Telescopes. BARR & STROUD Ltd. July 15, 1964 [July 24, 1963], No.29253/63. Heading G2J. An optical telescope instrument comprises an objective lens system 2, an eyepiece lens system 3 and a gyro-stabilized means having at least one reflecting surface positioned so that where d is the distance, along the optical axis, between said surface and the focal point of the objective lens system, and f 1 and f 2 are the focal lengths of the objective and eyepiece lens systems respectively. In the embodiment shown in Fig. 1 in which a rotor 6 is mounted in a pair of gimbals 8, 9, the three axes being parallel to the line of sight, the pitch axis and the yaw axis respectively, a plane mirror 4 is secured to the inner gimbal 8. This mirror 4 is positioned so that where i is the angle of incidence of the optical axis on the mirror surface. A collimation mark may be viewed in superposition on a distant object by means of a semi-reflector 10 which directs an image of the mark displayed on a cathode ray tube towards the objective lens system 2. In the embodiment of Figs. 3, 4 (not shown) the stabilizing means is incorporated into a binocular instrument. For each eye is provided an objective (15), three prisms (16), (17) and (18) and an eyepiece (19). The two sets of prisms are mounted on the inner gimbal of a gyroscope. For optimum correction of the instrument, the mean distance D measured along the optical axis between the reflecting surfaces of the prisms and the focal point of the objective (15) is D =f1-f2/2
GB2925363A 1963-07-24 1963-07-24 Stabilised telescope Expired GB1093131A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2925363A GB1093131A (en) 1963-07-24 1963-07-24 Stabilised telescope
NL6408492A NL6408492A (en) 1963-07-24 1964-07-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2925363A GB1093131A (en) 1963-07-24 1963-07-24 Stabilised telescope

Publications (1)

Publication Number Publication Date
GB1093131A true GB1093131A (en) 1967-11-29

Family

ID=10288582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2925363A Expired GB1093131A (en) 1963-07-24 1963-07-24 Stabilised telescope

Country Status (2)

Country Link
GB (1) GB1093131A (en)
NL (1) NL6408492A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001204A1 (en) * 1977-07-22 1979-04-04 Fuji Photo Optical Co., Ltd. Binocular system with gyro-stabilized image
EP0015061A1 (en) * 1979-01-20 1980-09-03 Fuji Photo Optical Co., Ltd. Image stabilized optical system
FR2459444A1 (en) * 1979-06-14 1981-01-09 Bofors Ab AUTOMATIC POINTING INSTRUMENT FOR CANON

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001204A1 (en) * 1977-07-22 1979-04-04 Fuji Photo Optical Co., Ltd. Binocular system with gyro-stabilized image
US4235506A (en) * 1977-07-22 1980-11-25 Fuji Photo Optical Co., Ltd. Image stabilized optical system
EP0015061A1 (en) * 1979-01-20 1980-09-03 Fuji Photo Optical Co., Ltd. Image stabilized optical system
FR2459444A1 (en) * 1979-06-14 1981-01-09 Bofors Ab AUTOMATIC POINTING INSTRUMENT FOR CANON

Also Published As

Publication number Publication date
NL6408492A (en) 1965-01-25

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