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Illuminating device for microscopes

  • US 4,852,985 A
  • Filed: 10/16/1987
  • Issued: 08/01/1989
  • Est. Priority Date: 10/16/1986
  • Status: Expired due to Term
First Claim
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1. An illuminating device for microscopes comprising a surface light source including a plural number of semiconductor light sources arranged in two dimensions, a control circuit connected to said surface light source for lighting some or all of said plural number of semiconductor light sources in conjunction with selection of an illumination mode, and an optical system arranged in alignment with said surface light source for condensing and transmitting light emitted from said surface light source, one of said plural number of semiconductor light sources being arranged on the optical axis of said optical system and the rest of said semiconductor light sources being arranged along a circle coaxial with the optical axis.

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