GB1367267A - Light emitting devices - Google Patents

Light emitting devices

Info

Publication number
GB1367267A
GB1367267A GB1119073A GB1119073A GB1367267A GB 1367267 A GB1367267 A GB 1367267A GB 1119073 A GB1119073 A GB 1119073A GB 1119073 A GB1119073 A GB 1119073A GB 1367267 A GB1367267 A GB 1367267A
Authority
GB
United Kingdom
Prior art keywords
light emitting
emitting devices
devices
light
emitting
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
GB1119073A
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.)
Nortel Networks Technology Corp
Original Assignee
Bell Northern Research 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 Bell Northern Research Ltd filed Critical Bell Northern Research Ltd
Publication of GB1367267A publication Critical patent/GB1367267A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • H01L33/60—Reflective elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/02—Details
    • H05B33/04—Sealing arrangements, e.g. against humidity
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
    • H05B33/24—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers of metallic reflective layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0091—Scattering means in or on the semiconductor body or semiconductor body package
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/52—Encapsulations

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Led Device Packages (AREA)
GB1119073A 1972-03-08 1973-03-07 Light emitting devices Expired GB1367267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA136,545A CA943929A (en) 1972-03-08 1972-03-08 Light emitting devices

Publications (1)

Publication Number Publication Date
GB1367267A true GB1367267A (en) 1974-09-18

Family

ID=4092558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1119073A Expired GB1367267A (en) 1972-03-08 1973-03-07 Light emitting devices

Country Status (4)

Country Link
CA (1) CA943929A (en)
DE (1) DE2310830A1 (en)
GB (1) GB1367267A (en)
NL (1) NL7303189A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3931668C2 (en) * 1989-09-22 1994-12-15 Bodenseewerk Geraetetech Lighting device for display boards
MY109916A (en) * 1992-09-02 1997-09-30 Motorola Inc Light wedge for distributing light across a display device.

Also Published As

Publication number Publication date
NL7303189A (en) 1973-09-11
DE2310830A1 (en) 1973-09-13
CA943929A (en) 1974-03-19

Similar Documents

Publication Publication Date Title
CA984946A (en) Light emitting device
JPS5496279A (en) Improved lamp
JPS53134455A (en) Light bending projector
AU5103473A (en) Light source
JPS57172318A (en) Light modulator
AU6139673A (en) Electrical lamp
GB1448987A (en) Light operated guard
GB1407024A (en) Lamps
BR7300691D0 (en) LAMP
HK20577A (en) Kaleidoscope
ZA733381B (en) Spotlights
ZA737129B (en) Optical multiple projector
SE385410B (en) LIGHT MODULATOR
SE392764B (en) LIGHTING FITTING
GB1367267A (en) Light emitting devices
GB1401294A (en) Luminaires
AU6123873A (en) Lamp lenses
GB1343566A (en) Laser light source
BE798089A (en) LIGHT SWITCH
YU35794B (en) Light cupola
MY7600281A (en) Optical attemation devices
IL41651A0 (en) Lamp
AU5845073A (en) Lamps
IE35169L (en) Light emitting semiconductors
HU172905B (en) Luminous equipment

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee