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Misfocus prevention means for cameras having unidirectional automatic focusing










Image Number 3 for United States Patent #4149792.

A variable focus lens capable of being moved within and outside of its normal focusing range by a manual and an automatic focus control system is provided with spring force biasing means to urge said lens into its normal focusing range to avoid the possibility of said lens being misfocused by said automatic focus control system.








 
 
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