Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1976-12-28
1978-10-31
Buczinski, S. C.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
354 25, 356 1, 356 4, G01J 120, G03B 708
Patent
active
041236505
ABSTRACT:
A range finder system to detect distance to an object by irradiating radiation toward an object, a distance to which is to be detected based on the principle of a base line range finder and receiving radiation being reflected by said object. It is particularly characterized by that a distance to an object is detected by irradiating a photoelectric conversion means with radiation and then comparing the signal outputted by said photoelectric conversion means with a prescribed reference signal. And the system of the present invention has, for that end, a radiation generation source to generate radiation, a light receiving system being positioned with a prescribed base line distance from said radiation generation source for receiving the reflected radiation being emitted by the radiation generation source and reflected by the object, a photoelectric conversion means to take in the radiation from said light receiving system being reflected by said object, an oscillating device having such function as intermittently irradiating the above mentioned photoelectric conversion means with the radiaton reflected by the above mentioned object within the radiation path between said photoelectric conversion means and the above mentioned radiation source, a reference signal generation means to generate reference signal, and a signal comparison means to compare the signal generated by the above mentioned photoelectric conversion means and the above mentioned reference signal.
REFERENCES:
patent: 3497301 (1970-02-01), Buchla
patent: 3610754 (1971-10-01), Pirlet
patent: 3723003 (1973-03-01), Vockenhuber et al.
patent: 3856399 (1974-12-01), Hosoe et al.
Asaeda Tsuyoshi
Fukushima Tadahide
Hashimoto Shigeru
Hosoe Kazuya
Iwashita Tomonori
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