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Camera

  • US 5,953,546 A
  • Filed: 04/14/1997
  • Issued: 09/14/1999
  • Est. Priority Date: 06/08/1995
  • Status: Expired due to Term
First Claim
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1. A camera that splits a light beam incident through a main lens to form light paths along which the light beam is directed separately to a photosensitive recording medium, to an image pickup device, and to an optical viewfinder, comprising:

  • a first beam splitter that splits the light beam incident through the main lens into a light beam for image formation on a surface of the photosensitive recording medium and a light beam for forming a primary image separate from the image formed on the surface of the photosensitive recording medium;

    a first relay optical system that receives a light beam from the primary image;

    a second beam splitter that splits a light beam exiting from the first relay optical system into a light beam for image sensing and a light beam for observation through the viewfinder;

    a second relay optical system that cooperates with the first relay optical system to cause the light beam for observation through the viewfinder to form an image on an image surface of the viewfinder; and

    a third relay optical system that cooperates with the first relay optical system to cause the light beam for image sensing to form an image on the image pickup device.

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