GB849319A - Improvements in and relating to light meters - Google Patents

Improvements in and relating to light meters

Info

Publication number
GB849319A
GB849319A GB3878557A GB3878557A GB849319A GB 849319 A GB849319 A GB 849319A GB 3878557 A GB3878557 A GB 3878557A GB 3878557 A GB3878557 A GB 3878557A GB 849319 A GB849319 A GB 849319A
Authority
GB
United Kingdom
Prior art keywords
photo
sections
dec
switching means
sensitive surface
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
GB3878557A
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.)
MEGATRON Ltd
Original Assignee
MEGATRON 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 MEGATRON Ltd filed Critical MEGATRON Ltd
Priority to GB3878557A priority Critical patent/GB849319A/en
Publication of GB849319A publication Critical patent/GB849319A/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
    • 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
    • H01L31/04—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 adapted as photovoltaic [PV] conversion devices
    • H01L31/06—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 adapted as photovoltaic [PV] conversion devices characterised by potential barriers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Manufacturing & Machinery (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

849,319. Photo-cells. MEGATRON Ltd., VESZI, G. A., and MARKUS,. P. Dec. 15, 1958 [Dec. 13, 1957], No. 38785/57. Addition to 728,212. Class 37 The photo sensitive surface of a photo-cell as described in the parent Specification is divided into a plurality of separate sections, each being provided with an electrode. Switching means may be provided to selectively connect one or more sections to an indicating instrument to provide multi-range facilities. The Figure shows a photo-sensitive surface having two concentric regions.2 and 3, supplied with metallic contact areas 6 and 5 respectively to which connection are made from the opposite side of the photo-sensitive layer by means of wires 8 and 9. The switching means for selecting the sections may also control the selection of shunt or series resistors associated with the indicating instrument.
GB3878557A 1957-12-13 1957-12-13 Improvements in and relating to light meters Expired GB849319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3878557A GB849319A (en) 1957-12-13 1957-12-13 Improvements in and relating to light meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3878557A GB849319A (en) 1957-12-13 1957-12-13 Improvements in and relating to light meters

Publications (1)

Publication Number Publication Date
GB849319A true GB849319A (en) 1960-09-21

Family

ID=10405678

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3878557A Expired GB849319A (en) 1957-12-13 1957-12-13 Improvements in and relating to light meters

Country Status (1)

Country Link
GB (1) GB849319A (en)

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