GB685725A - Improvements relating to light projection and viewing equipment for turrets of tanks and other vehicles or ships - Google Patents

Improvements relating to light projection and viewing equipment for turrets of tanks and other vehicles or ships

Info

Publication number
GB685725A
GB685725A GB1772550A GB1772550A GB685725A GB 685725 A GB685725 A GB 685725A GB 1772550 A GB1772550 A GB 1772550A GB 1772550 A GB1772550 A GB 1772550A GB 685725 A GB685725 A GB 685725A
Authority
GB
United Kingdom
Prior art keywords
aperture
screen
light
infra
viewing
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
GB1772550A
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.)
ALBERT VICTOR MARCEL MITZAKIS
Original Assignee
ALBERT VICTOR MARCEL MITZAKIS
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 ALBERT VICTOR MARCEL MITZAKIS filed Critical ALBERT VICTOR MARCEL MITZAKIS
Priority to GB1772550A priority Critical patent/GB685725A/en
Publication of GB685725A publication Critical patent/GB685725A/en
Expired legal-status Critical Current

Links

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
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/08—Periscopes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/26—Peepholes; Windows; Loopholes
    • F41H5/266—Periscopes for fighting or armoured vehicles
    • 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
    • G02B23/12—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

685,725. Viewing objects by infra-red rays. MITZAKIS, A. V. M. July 11, 1951 [July 14, 1950], No. 17725/50. Class 40 (iii). An optical projection and viewing apparatus for use in the turrets of tanks and other vehicles or ships of the type having a light projector mounted therein includes an infra-red screen which can be introduced into the beam of the light projector, and the turret is formed with an aperture which is normally closed by a shutter and behind which is disposed an infrared image converter. As shown in the drawings, the turret, which is rotatable, contains optical apparatus 6, 7, 9 for projecting a beam of light through an aperture 10, and a periscope 30, 31 for normal viewing. For viewing by infra-red light, a screen 40 is placed in the light beam and the observer then views by infra-red image converter 45 mounted in front of a second aperture 44. A spring-loaded shutter 46 normally closes aperture 44 and is lowered through a forward movement of the observer's seat 36 by a cable and pulley system 48, 49. This movement may also be employed to position screen 40 in the light beam. The light projector can be elevated and depressed through a few degrees by curved rack 19 engaged by a pinion 20 driven through chain 24 from handle 26. The projector pivots about 18 and a corresponding motion is imparted to the image converter, which pivots about 55, by a chain-engaging sprockets 56, 57. A counter-weight 28 is provided sliding in guides 29. Aperture 10 can be closed by shutter 11 positioned by motor 12 driving through a rack- and-pinion mechanism.. The image converter, Fig. 3 (not shown), comprises, in an evacuated envelope, a photo-cathode from which an electron image is obtained and brought to focus on a luminescent screen. The screen is viewed by means of two inclined mirrors carried on flaps 71, 72, flap 71 being made of bullet-proof steel in order to protect the observer.
GB1772550A 1950-07-14 1950-07-14 Improvements relating to light projection and viewing equipment for turrets of tanks and other vehicles or ships Expired GB685725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1772550A GB685725A (en) 1950-07-14 1950-07-14 Improvements relating to light projection and viewing equipment for turrets of tanks and other vehicles or ships

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1772550A GB685725A (en) 1950-07-14 1950-07-14 Improvements relating to light projection and viewing equipment for turrets of tanks and other vehicles or ships

Publications (1)

Publication Number Publication Date
GB685725A true GB685725A (en) 1953-01-07

Family

ID=10100129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1772550A Expired GB685725A (en) 1950-07-14 1950-07-14 Improvements relating to light projection and viewing equipment for turrets of tanks and other vehicles or ships

Country Status (1)

Country Link
GB (1) GB685725A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954478A (en) * 1954-12-27 1960-09-27 Andre A C Bayle Radiant energy sensitive devices
US3470380A (en) * 1964-12-12 1969-09-30 Nat Res Dev Photoelectronic image detecting devices
GB2519767A (en) * 2013-10-29 2015-05-06 Kent Periscopes Ltd Periscope

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954478A (en) * 1954-12-27 1960-09-27 Andre A C Bayle Radiant energy sensitive devices
US3470380A (en) * 1964-12-12 1969-09-30 Nat Res Dev Photoelectronic image detecting devices
GB2519767A (en) * 2013-10-29 2015-05-06 Kent Periscopes Ltd Periscope
US9915817B2 (en) 2013-10-29 2018-03-13 Kent Periscopes Ltd Periscope with a reflector forming a light tight seal
GB2519767B (en) * 2013-10-29 2018-05-09 Kent Periscopes Ltd Periscope

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