GB863557A - Improvements in or relating to underwater cameras - Google Patents

Improvements in or relating to underwater cameras

Info

Publication number
GB863557A
GB863557A GB2335358A GB2335358A GB863557A GB 863557 A GB863557 A GB 863557A GB 2335358 A GB2335358 A GB 2335358A GB 2335358 A GB2335358 A GB 2335358A GB 863557 A GB863557 A GB 863557A
Authority
GB
United Kingdom
Prior art keywords
sleeve
mount
objective
ring
tube
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
GB2335358A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2335358A priority Critical patent/GB863557A/en
Publication of GB863557A publication Critical patent/GB863557A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/08—Waterproof bodies or housings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Structure And Mechanism Of Cameras (AREA)

Abstract

863,557. Underwater cameras. DE WOUTERS D'OPLINTER, J.G.M.J. July 21, 1958, No. 23353/58. Classes 97(1) and 98(1) In an underwater camera, the objective assembly incorporates an objective mount arranged for axial adjustment in a lens tube and urged by resilient means towards a reference surface which is a fixed distance from a photosensitive surface, said distance being unaltered by deformation of the camera casing. The objective assembly shown is contained in a lens tube 2 which is screwed on to the external casing 1 of the camera body and the join is made fluid tight by means of rings 8 in the casing 1 and lens tube 2 which bear against a sleeve 9. The objective mount 16 is urged by a spring 33, positioned between a ring 21 and a collar 34 on said mount, against a reference surface comprising a ring 31. This ring is fixed to the tube 2 and not the casing 1 and forms the front face of a dark chamber which incorporates the photo-sensitive layer. The sleeve 9 is movable axially and rotatably relative to the tube 2. In the position shown a rod 10 on the sleeve 9 rests in a socket in a sleeve 14. An arm 18 on an extension of the tube 2 engages a groove 20 in a bush 14 and prevents it from rotating so that rotation of the sleeve 9 causes this bush 14 and the mount 16 to move axially by means of screw threads 17 thereby adjusting the focus of the objective. In the forward position of the sleeve 9 the arm 10 engages a notch in ring 21 a pin 26 of which moves in a circumferential slot 27 in a sleeve 22 and engages the objective mount 16. The sleeve 22 is coupled to a diaphragm ring 28 and the mount 16 by means of pin 29. Rotation of sleeve 9 therefore causes the mount 16 and diaphragm control ring 28 to rotate to alter the diaphragm aperture. Scales indicating the focus and aperture of the objective may be engraved on the lens tube 2 so that only the appropriate scale is uncovered for each of the controlling positions of sleeve 9.
GB2335358A 1958-07-21 1958-07-21 Improvements in or relating to underwater cameras Expired GB863557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2335358A GB863557A (en) 1958-07-21 1958-07-21 Improvements in or relating to underwater cameras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2335358A GB863557A (en) 1958-07-21 1958-07-21 Improvements in or relating to underwater cameras

Publications (1)

Publication Number Publication Date
GB863557A true GB863557A (en) 1961-03-22

Family

ID=10194293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2335358A Expired GB863557A (en) 1958-07-21 1958-07-21 Improvements in or relating to underwater cameras

Country Status (1)

Country Link
GB (1) GB863557A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241345A (en) * 1990-02-27 1991-08-28 Asahi Optical Co Ltd Water resistant camera
EP0497383A2 (en) * 1986-05-12 1992-08-05 Asahi Kogaku Kogyo Kabushiki Kaisha Photographic optical system and camera including such a system
GB2309542A (en) * 1996-01-26 1997-07-30 Asahi Optical Co Ltd Lens barrel having a watertight structure
US5754893A (en) * 1996-01-26 1998-05-19 Asahi Kogaku Kogyo Kabushiki Kaisha Lens barrel having waterproof coating
GB2432917A (en) * 2005-12-01 2007-06-06 Vtc Electronics Corp Surveillance camera assembly with external adjusting rings and internal rods

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5966551A (en) 1986-05-12 1999-10-12 Asahi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens
US5713051A (en) 1986-05-12 1998-01-27 Asahi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens
EP0497383A3 (en) * 1986-05-12 1992-09-02 Asahi Optical Co Ltd Photographic optical system and camera including such a system
US5583596A (en) 1986-05-12 1996-12-10 Asahi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens
US5673099A (en) 1986-05-12 1997-09-30 Asahi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens
US5424796A (en) 1986-05-12 1995-06-13 Asabi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens
EP0497383A2 (en) * 1986-05-12 1992-08-05 Asahi Kogaku Kogyo Kabushiki Kaisha Photographic optical system and camera including such a system
US5465131A (en) 1986-05-12 1995-11-07 Asahi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens
US5321462A (en) 1986-05-12 1994-06-14 Asahi Kogaku Kogyo Kabushiki Kaisha Lens shutter camera including zoom lens
GB2241345B (en) * 1990-02-27 1994-03-16 Asahi Optical Co Ltd Waterproof and/or water-resistant camera
GB2241345A (en) * 1990-02-27 1991-08-28 Asahi Optical Co Ltd Water resistant camera
GB2309542A (en) * 1996-01-26 1997-07-30 Asahi Optical Co Ltd Lens barrel having a watertight structure
US5754893A (en) * 1996-01-26 1998-05-19 Asahi Kogaku Kogyo Kabushiki Kaisha Lens barrel having waterproof coating
GB2309542B (en) * 1996-01-26 2000-06-21 Asahi Optical Co Ltd Lens barrel having a watertight structure
GB2432917A (en) * 2005-12-01 2007-06-06 Vtc Electronics Corp Surveillance camera assembly with external adjusting rings and internal rods
GB2432917B (en) * 2005-12-01 2008-03-12 Vtc Electronics Corp Surveillence camera assembly with external adjusting rings

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