Inventor

HENNEBERGER HEINZ

DE2 patents

Patents

2 patents

US4180702ADec 25, 1979

Photo electric light detection devices

SICK OPTIK ELEKTRONIK ERWIN69 citations94

US4200397AApr 29, 1980

Apparatus for distinguishing between predetermined ranges of angles at which light rays leave a surface

SICK OPTIK ELEKTRONIK ERWIN7 citations71