JPS57169282A - Light emitting diode - Google Patents

Light emitting diode

Info

Publication number
JPS57169282A
JPS57169282A JP56055252A JP5525281A JPS57169282A JP S57169282 A JPS57169282 A JP S57169282A JP 56055252 A JP56055252 A JP 56055252A JP 5525281 A JP5525281 A JP 5525281A JP S57169282 A JPS57169282 A JP S57169282A
Authority
JP
Japan
Prior art keywords
wavelength
light
transmission system
neighborhood
channels
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.)
Pending
Application number
JP56055252A
Other languages
Japanese (ja)
Inventor
Akihiro Adachi
Toshio Takei
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56055252A priority Critical patent/JPS57169282A/en
Publication of JPS57169282A publication Critical patent/JPS57169282A/en
Pending 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
    • 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
    • H01L33/44—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 coatings, e.g. passivation layer or anti-reflective coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Led Device Packages (AREA)

Abstract

PURPOSE:To enhance wavelength splitting performance using a multilayer film interference filter for a light source of a wavelength splitting multiplex transmission system, by providing the filter to shut off light with wavelength constituent except for that in the neighborhood of luminous center wavelength at the window of the LED package. CONSTITUTION:An LED chip 21 is fixed on a heat sink block 22 loaded in the package 23. Output light 30 from the LED chip 21 radiates through the window 40 at which the multilayer film interference filter 41 transmitting only the light with wavelength constituent in the neighborhood of luminous center wavelength is provided to attenuate the light allotted to the other channels. When it is used for the light source of the wavelength splitting multiplex transmission system, the transmission system with less cross talk between channels is available.
JP56055252A 1981-04-13 1981-04-13 Light emitting diode Pending JPS57169282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56055252A JPS57169282A (en) 1981-04-13 1981-04-13 Light emitting diode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56055252A JPS57169282A (en) 1981-04-13 1981-04-13 Light emitting diode

Publications (1)

Publication Number Publication Date
JPS57169282A true JPS57169282A (en) 1982-10-18

Family

ID=12993400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56055252A Pending JPS57169282A (en) 1981-04-13 1981-04-13 Light emitting diode

Country Status (1)

Country Link
JP (1) JPS57169282A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0803711A1 (en) * 1996-04-24 1997-10-29 Mannesmann VDO AG Illuminated display
KR100634302B1 (en) 2004-09-09 2006-10-16 서울반도체 주식회사 Light emitting diode
JP2016129189A (en) * 2015-01-09 2016-07-14 信越半導体株式会社 Infrared light emission element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51136293A (en) * 1975-05-21 1976-11-25 Oki Electric Ind Co Ltd Wave length converter
JPS5211784A (en) * 1975-07-17 1977-01-28 Matsushita Electric Ind Co Ltd Photo semiconductor device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51136293A (en) * 1975-05-21 1976-11-25 Oki Electric Ind Co Ltd Wave length converter
JPS5211784A (en) * 1975-07-17 1977-01-28 Matsushita Electric Ind Co Ltd Photo semiconductor device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0803711A1 (en) * 1996-04-24 1997-10-29 Mannesmann VDO AG Illuminated display
KR100634302B1 (en) 2004-09-09 2006-10-16 서울반도체 주식회사 Light emitting diode
JP2016129189A (en) * 2015-01-09 2016-07-14 信越半導体株式会社 Infrared light emission element

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