GB996634A - Apparatus for improving the long range observation of an object - Google Patents

Apparatus for improving the long range observation of an object

Info

Publication number
GB996634A
GB996634A GB4715/63A GB471563A GB996634A GB 996634 A GB996634 A GB 996634A GB 4715/63 A GB4715/63 A GB 4715/63A GB 471563 A GB471563 A GB 471563A GB 996634 A GB996634 A GB 996634A
Authority
GB
United Kingdom
Prior art keywords
emission
reception
diaphragm
sighting device
searchlight
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
GB4715/63A
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.)
PAULO EULER DE SALLES COELHO
Original Assignee
PAULO EULER DE SALLES COELHO
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 PAULO EULER DE SALLES COELHO filed Critical PAULO EULER DE SALLES COELHO
Publication of GB996634A publication Critical patent/GB996634A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
    • F21S41/13—Ultraviolet light; Infrared light

Abstract

996,634. Searchlights. P. E. DE S. COELHO. Feb. 5, 1963 [Feb. 23, 1962], No. 4715/63. Heading F4R. [Also in Division G2] Apparatus for improving the long range observation of an object especially through fog, mist and cloud, comprises a searchlight for projecting a light beam towards the object, means for causing the beam to be projected intermittently and a sighting device disposed adjacent and parallel to the searchlight having means for intermittently preventing light entering the sighting device. The searchlight 1, Fig. 1, comprises a light source 2, a condenser lens 3, a diaphragm 4 at the conjugate focus of the lens and an objective lens 6, the back focal point of which coincides with the image at the diaphragm 4. The sighting device has an eyepiece 10 and a fixed diaphragm 9. A disc 5 driven by a motor 21 has two series of apertures 11, 12, and 13, 14 cooperating with the diaphragms 4, 9 respectively as shown in Fig. 2. During rotation of the disc there are successive periods during which (1) there is emission but no visual reception, (2) there is neither emission nor reception and (3) there is reception but no emission. If the interval between emission and reception is #T, visual impressions will only be received which are derived from a distance L/2 where L is the distance covered by the light in the time #T. This distance can be varied by varying the speed of the motor 21 or by a small adjustment of the position of the diaphragm 9 concentrically of the shaft of the disc. If desired, the sighting device may be fitted with lenses.
GB4715/63A 1962-02-23 1963-02-05 Apparatus for improving the long range observation of an object Expired GB996634A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR13671062 1962-02-23

Publications (1)

Publication Number Publication Date
GB996634A true GB996634A (en) 1965-06-30

Family

ID=4074913

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4715/63A Expired GB996634A (en) 1962-02-23 1963-02-05 Apparatus for improving the long range observation of an object

Country Status (2)

Country Link
US (1) US3183347A (en)
GB (1) GB996634A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041765A1 (en) * 1980-06-11 1981-12-16 Union Carbide Corporation Method and apparatus for detecting optical signals under ambient light conditions

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901580A (en) * 1970-10-08 1975-08-26 Denis L Mccarthy Laser instrument for viewing through dense atmospheres
US3744874A (en) * 1970-10-08 1973-07-10 D Mccarthy Fire fighting apparatus
GB1373715A (en) * 1972-01-20 1974-11-13 Redifon Ltd Optical systems
CN101672621B (en) * 2008-09-11 2012-07-04 深圳富泰宏精密工业有限公司 Laser pen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268133A (en) * 1938-06-17 1941-12-30 Robert W Carlson Electric timing device
US3049962A (en) * 1955-10-03 1962-08-21 Baulio Ets Method and apparatus for eliminating the dazzling effect of strong sources of light, particularly for automotive vehicles
US3005374A (en) * 1958-01-21 1961-10-24 Albert G Thomas Non-glare headlight system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041765A1 (en) * 1980-06-11 1981-12-16 Union Carbide Corporation Method and apparatus for detecting optical signals under ambient light conditions

Also Published As

Publication number Publication date
US3183347A (en) 1965-05-11

Similar Documents

Publication Publication Date Title
GB1477289A (en) Variable focal length lens system
FR2418476A1 (en) OPTICAL DEVICE FOR GOGGLES FOR NIGHT VISION
GB996634A (en) Apparatus for improving the long range observation of an object
JPS54106225A (en) Display device in finder for auto-focus camera
GB437444A (en) Improvements in or connected with optical sights
JPS5330350A (en) Optical microscope
ATE18T1 (en) THEODOLITE FOR FOLLOWING AND MEASURING AN AIRCRAFT WITH A TELEVISION CAMERA ARRANGED ON THE TELESCOPE
JPS5714818A (en) Reflection lighting type projector
JPS5397447A (en) Optical scanning system
GB1290021A (en)
GB521452A (en) Sighting device for moving picture cameras
GB1012838A (en) Illuminating device for opthalmoscope
GB1455029A (en) Apparatus for checking the line of sight of a telescope in relation to that of an infra-red goniometer
EP0680027A3 (en) Apparatus for measuring the distance between an object and its picture.
GB1411655A (en) Optical diffractometers
FR2255620A1 (en) Variable focus lens for TV cameras - gives uniform high contrast over whole image field even at extreme edges
GB754018A (en) Aiming device for firearms
FR2380561A1 (en) Image intensifying weapon sights - has Cassegrain objective comprising two mirrors, dioptric elements and image tube
GB1109172A (en) Telescopic direction-finding apparatus
JPS5567732A (en) Finder optical system
SU93689A1 (en) Illumination system for copier
GB731759A (en) Improvements in and relating to reflection sights
GB940839A (en) Optical aiming device
GB581987A (en) Improvements in cameras
GB581768A (en) Improvements in or relating to range finders