Electronic still camera

Abstract

Abstract PURPOSE:To obtain single-lens reflex constitution without using any quick-return mirror by moving an image pickup element into and out of the luminous flux of a lens. CONSTITUTION:A CCD 14 is arranged outside the image pickup luminous flux path of the lens 11 when not used. Subject light which is made incident from the lens 11 therefore passes through a field lens 16, a mirror 17, a relay lens 19, and a mirror 20 to form its image on an image re-formation plane 21. Consequently, this image can be monitored through a magnifying lens 22. When a release switch 35 is turned on, a system controller 33 drives a stop 12 through a driving mechanism 13 and sets a calculated stop value As, moves the CCD 14 into the luminous flux path, and drives a spindle motor 30 through a spindle servo circuit 32 to rotates a magnetic disk 29.

Inventors

• 👤 Harumi Aoki
• 👤 青木　晴美

Bibliographic Details