FR2427018A1 - IMPROVEMENT RELATED TO IMAGE FORMING EQUIPMENT - Google Patents

IMPROVEMENT RELATED TO IMAGE FORMING EQUIPMENT

Info

Publication number
FR2427018A1
FR2427018A1 FR7913105A FR7913105A FR2427018A1 FR 2427018 A1 FR2427018 A1 FR 2427018A1 FR 7913105 A FR7913105 A FR 7913105A FR 7913105 A FR7913105 A FR 7913105A FR 2427018 A1 FR2427018 A1 FR 2427018A1
Authority
FR
France
Prior art keywords
image
drum
analysis
mirror
array
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.)
Granted
Application number
FR7913105A
Other languages
French (fr)
Other versions
FR2427018B1 (en
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.)
EMI Ltd
Original Assignee
EMI 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 EMI Ltd filed Critical EMI Ltd
Publication of FR2427018A1 publication Critical patent/FR2427018A1/en
Application granted granted Critical
Publication of FR2427018B1 publication Critical patent/FR2427018B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
    • H04N3/08—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector
    • H04N3/09—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector for electromagnetic radiation in the invisible region, e.g. infrared

Abstract

Appareil de formation d'une image visible d'un rayonnement infrarouge. L'appareil comporte un tambour de balayage hexagonal 3 et deux miroirs d'analyse d'image 6, 20 disposés sur les côtés opposés du tambour. Le rayonnement infrarouge d'un sujet est dirigé par le tambour 3 et un miroir 6 sur un tableau 14 de détecteurs qui commande, par l'intermédiaire d'un circuit électronique 17, un tableau de diodes électroluminescentes. La lumière émise par les diodes est dirigée par le tambour et le miroir 20 sur une lentille de sortie 21 pour construire une image du sujet. Les fréquences d'analyse de ligne et d'analyse d'image sont dans un rapport tel que, l'analyse d'image s'effectuant à une vitesse constante dans les deux sens, la configuration d'analyse est périodiquement répétée avec une fréquence inférieure à 0,3 s, cette configuration comportant un nombre entier d'analyses d'image et un nombre entier d'analyses de ligne, ce dernier nombre étant de préférence un nombre premier. Application aux lunettes à infrarouge.Apparatus for forming a visible image of infrared radiation. The apparatus comprises a hexagonal scanning drum 3 and two image analysis mirrors 6, 20 disposed on the opposite sides of the drum. The infrared radiation of a subject is directed by the drum 3 and a mirror 6 on an array 14 of detectors which controls, through an electronic circuit 17, an array of light-emitting diodes. The light emitted by the diodes is directed by the drum and the mirror 20 onto an output lens 21 to construct an image of the subject. The line analysis and image analysis frequencies are in such a ratio that, with the image analysis being performed at a constant speed in both directions, the analysis pattern is periodically repeated with a frequency less than 0.3 s, this configuration comprising an integer number of image analyzes and an integer number of line analyzes, the latter number preferably being a prime number. Application to infrared glasses.

FR7913105A 1978-05-25 1979-05-23 IMPROVEMENT RELATED TO IMAGE FORMING EQUIPMENT Granted FR2427018A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2229078A GB1587098A (en) 1978-05-25 1978-05-25 Image forming apparatus

Publications (2)

Publication Number Publication Date
FR2427018A1 true FR2427018A1 (en) 1979-12-21
FR2427018B1 FR2427018B1 (en) 1985-02-01

Family

ID=10176995

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913105A Granted FR2427018A1 (en) 1978-05-25 1979-05-23 IMPROVEMENT RELATED TO IMAGE FORMING EQUIPMENT

Country Status (3)

Country Link
DE (1) DE2921251C2 (en)
FR (1) FR2427018A1 (en)
GB (1) GB1587098A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0407199A2 (en) * 1989-07-07 1991-01-09 Pilkington Thorn Optronics Limited Image forming apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59186481A (en) * 1983-04-08 1984-10-23 Citizen Watch Co Ltd Image pickup device
DE4039577A1 (en) * 1990-12-12 1992-06-17 Eltro Gmbh Offset and response compensation of line or matrix detectors

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2309092A1 (en) * 1975-04-15 1976-11-19 Hughes Aircraft Co INFRARED IMAGE FORMING DEVICE WITH REDUNDANT OBJECT SPACE SCAN

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941923A (en) * 1974-04-01 1976-03-02 Hughes Aircraft Company Thermal imaging system with redundant object space scanning

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2309092A1 (en) * 1975-04-15 1976-11-19 Hughes Aircraft Co INFRARED IMAGE FORMING DEVICE WITH REDUNDANT OBJECT SPACE SCAN

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0407199A2 (en) * 1989-07-07 1991-01-09 Pilkington Thorn Optronics Limited Image forming apparatus
EP0407199A3 (en) * 1989-07-07 1991-10-09 Thorn Emi Electronics Limited Improvements in or relating to image forming apparatus

Also Published As

Publication number Publication date
FR2427018B1 (en) 1985-02-01
DE2921251A1 (en) 1979-11-29
GB1587098A (en) 1981-04-01
DE2921251C2 (en) 1986-06-05

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Legal Events

Date Code Title Description
ST Notification of lapse