Automatic focus detecting mechanism for endoscopes

Details Automatic focus detecting mechanism for endoscopes Automatic focus detecting mechanism for endoscopes

1982-12-01

1985-12-31

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250227, G01J 120

Patent

active

045623449

ABSTRACT:
An endoscope provided with a light receiving device on the eyepiece side in respect of an image guide and with a driving means for moving an objective lens near an eyepiece, to make the whole endoscope slim and to make it simple in formation despite its being provided with an automatic focus detecting mechanism.

REFERENCES:
patent: 4153834 (1979-05-01), Hayamizu
patent: 4340811 (1982-07-01), Yamashita et al.

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