GB849461A - Improvements in or relating to solid-state image-intensifiers - Google Patents

Improvements in or relating to solid-state image-intensifiers

Info

Publication number
GB849461A
GB849461A GB31001/56A GB3100156A GB849461A GB 849461 A GB849461 A GB 849461A GB 31001/56 A GB31001/56 A GB 31001/56A GB 3100156 A GB3100156 A GB 3100156A GB 849461 A GB849461 A GB 849461A
Authority
GB
United Kingdom
Prior art keywords
layer
electrode
photo
electroluminescent layer
glass plate
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
GB31001/56A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB849461A publication Critical patent/GB849461A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/12Semiconductor 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
    • H01L31/14Semiconductor 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 light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Luminescent Compositions (AREA)

Abstract

849,461. Electroluminescence. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 11, 1956 [Oct. 14, 1955], No. 31001/56. Class 39(1). A solid-state image-intensifier, particularly for X-rays, has an electroluminescent layer and a further layer incorporating discrete inclusions of photo-conductive material each extending through the thickness of the further-layer, the further layer also including luminescent material which converts the incident radiation into other radiation more readily absorbed by the photoconductive material, and the two layers being interposed between two electrodes parallel to the two layers. The construction shown in Fig. 1 comprises a glass support 19 coated with a transparent stannic oxide electrode 20, an electroluminescent layer 21, a glass plate 15 pierced with holes 14 coated with photoconductive cadmium sulphide 16 and filled with luminescent calcium tungstate or silveractuated zinc sulphide, and a transparent electrode 17, an A.C. source being connected between the electrodes 17 and 20. The electrode 17 can consist of aluminium deposited from vapour on the face of the glass plate 15. Dimensions are stated. The glass plate 15 can be replaced by one of polystyrene, ethyl-cellulose or ceramic material. Generally the material of the plate 15 has a dielectric constant lower than that of the photo-conductive material 16, and the materials and their proportions can be such that the mean dielectric constant of the whole layer between the electroluminescent layer 21 and the electrode 17 is less than onehalf of that of the photo-conductive material 16. The construction shown in Fig. 3 comprises a glass support 25, a layer of conductive stannic oxide 26, an electroluminescent layer 27, a layer 28 of calcium tungstate formed with a plurality of small apertures filled with photoconductive material 29 such as cadmium sulphide, and a transparent electrode 30. Reference has been directed by the Comptroller to Specifications 763,744 and 765,579.
GB31001/56A 1955-10-14 1956-10-11 Improvements in or relating to solid-state image-intensifiers Expired GB849461A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL849461X 1955-10-14

Publications (1)

Publication Number Publication Date
GB849461A true GB849461A (en) 1960-09-28

Family

ID=19845300

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31001/56A Expired GB849461A (en) 1955-10-14 1956-10-11 Improvements in or relating to solid-state image-intensifiers

Country Status (1)

Country Link
GB (1) GB849461A (en)

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