GB947883A - Improvements in or relating to adjustable electrical potentiometers - Google Patents

Improvements in or relating to adjustable electrical potentiometers

Info

Publication number
GB947883A
GB947883A GB1008161A GB1008161A GB947883A GB 947883 A GB947883 A GB 947883A GB 1008161 A GB1008161 A GB 1008161A GB 1008161 A GB1008161 A GB 1008161A GB 947883 A GB947883 A GB 947883A
Authority
GB
United Kingdom
Prior art keywords
layer
source
conductive layer
light
azimuth
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
GB1008161A
Inventor
Alexander Joh Moncrieff-Yeates
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.)
Giannini Controls Corp
Original Assignee
Giannini Controls Corp
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 Giannini Controls Corp filed Critical Giannini Controls Corp
Priority to GB1008161A priority Critical patent/GB947883A/en
Publication of GB947883A publication Critical patent/GB947883A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
    • H01L31/16—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources
    • H01L31/161—Semiconductor device sensitive to radiation without a potential-jump or surface barrier, e.g. photoresistors
    • H01L31/164—Optical potentiometers

Abstract

947,883. Photo-electric direction finding. GIANNINI CONTROLS CORPORATION. March 20, 1961, No. 10081/61. Heading H4D. [Also in Divisions G1 and H1] A device which can indicate the elevation or azimuth of a source of light comprises a partspherical carrier 100 having three layers superposed thereon, a layer of resistance material 112, a photoconductive layer 114 and a conductive layer 116. Light is focused on to the photoconductive layer by lens 104 to cause conduction between the resistive layer and the conductive layer. With the layer broken at 120 by an insulating section, at either side of which electrical connections 122 and 124 are made to a source of potential difference, the potential appearing at the conductive layer due to the conduction of the photo-conductive layer will correspond to the azimuth of the light source, alternatively if connections are made to the circumferential edges of the resistive layer the voltage picked off will depend on the elevation of the source. Other forms of potentiometers or variable resistors are described (see Division H1). Reference has been directed by the Comptroller to Specification 914,860.
GB1008161A 1961-03-20 1961-03-20 Improvements in or relating to adjustable electrical potentiometers Expired GB947883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1008161A GB947883A (en) 1961-03-20 1961-03-20 Improvements in or relating to adjustable electrical potentiometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1008161A GB947883A (en) 1961-03-20 1961-03-20 Improvements in or relating to adjustable electrical potentiometers

Publications (1)

Publication Number Publication Date
GB947883A true GB947883A (en) 1964-01-29

Family

ID=9961104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1008161A Expired GB947883A (en) 1961-03-20 1961-03-20 Improvements in or relating to adjustable electrical potentiometers

Country Status (1)

Country Link
GB (1) GB947883A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092330A2 (en) * 1982-04-19 1983-10-26 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Infra red photo detector systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092330A2 (en) * 1982-04-19 1983-10-26 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Infra red photo detector systems
EP0092330B1 (en) * 1982-04-19 1990-01-10 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Infra red photo detector systems

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