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Semiconductor luminous element with light reflection and focusing configuration

  • US 5,528,057 A
  • Filed: 05/27/1994
  • Issued: 06/18/1996
  • Est. Priority Date: 05/28/1993
  • Status: Expired due to Fees
First Claim
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1. A semiconductor luminous element, comprising:

  • a first electrode layer;

    a substrate;

    a multilayer reflective film, said multilayer reflective film is a laminate consisting of a number of layers of thin film with different refractive indices;

    a first cladding layer;

    an active layer;

    a second cladding layer, said active layer is located between said first cladding layer and said second cladding layer;

    an optically reflective surface positioned above said second cladding layer, said optically reflective surface having reflective surface portions positioned at oblique angles with respect to a surface of said multilayer reflective film to condense light emitted by said active layer and light reflected by said multilayer reflective film; and

    a second electrode layer having a window therethrough, whereby said optically reflective surface condenses light emitted by said active layer and light reflected by said multilayer reflective film through said window of said second electrode.

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