Light detection, signaling and speed measurement system

Details Light detection, signaling and speed measurement system Light detection, signaling and speed measurement system

1978-08-21

1981-09-15

Caldwell, Sr., John W.

Communications: electrical

Digital comparator systems

315149, 324160, 324175, 356 28, B62J 500, H05B 3702

Patent

active

042900476

ABSTRACT:
A light detection, signaling and speed measurement system. The system includes a housing having a first photosensitive surface mounted therein for detection of an incident light source approaching the system from any direction. The system further includes at least one light signal device mounted for visibility, along with circuitry responsive to detection of the incident light source for illuminating the light signal device. A second photosensitive surface is also provided to receive largely ambient light and to be nonresponsive to the light of the incident light source, along with circuitry to allow the illumination of the light signal device only when the second photosensitive surface detects the absence of a predetermined level of ambient light. The system further includes circuitry for detecting and indicating the velocity of the incident light source moving with respect to the system.

REFERENCES:
patent: 3026498 (1962-03-01), Galliers
patent: 3516751 (1970-06-01), Fruensel
patent: 3576371 (1971-04-01), Ulicki
patent: 3892483 (1975-07-01), Saufferer
patent: 3901813 (1975-08-01), Potopinski
patent: 3953126 (1976-04-01), Kim et al.
patent: 3989980 (1976-11-01), Berman
patent: 4117457 (1978-09-01), Latta
patent: 4151466 (1979-04-01), Boyer et al.
patent: 4156190 (1979-05-01), Chittenden et al.

Affiliated with

Also associated with

Rating

Light detection, signaling and speed measurement system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light detection, signaling and speed measurement system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light detection, signaling and speed measurement system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-393052