PHOTOELECTRIC SENSOR FOR LINE TRACING AND EDGE TRACING COMPRISING MEANS FOR SWITCHING PHOTOCELL BETWEEN DIFFERENT BRANCHES OF A BRIDGE CIRCUIT
摘要
This invention relates to a photoelectric tracing system in which the sensing device can be easily changed from a line tracing type to an edge tracing type and vice versa.
申请公布号
US3711716(A)
申请公布日期
1973.01.16
申请号
USD3711716
申请日期
1971.06.11
申请人
IWATANI & CO LTD,JA;OSAKA AND PRECISION CUTTING MACHINE CO LTD,JA