Laser beam scanning apparatus having arrangement for maintaining

Details Laser beam scanning apparatus having arrangement for maintaining Laser beam scanning apparatus having arrangement for maintaining

1994-10-20

1996-10-29

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250566, 235467, G01J 132

Patent

active

055699057

ABSTRACT:
A laser beam scanning apparatus including a device for scanning a laser beam, and a device for changing the scanning direction of the laser beam into a plurality of different scanning directions in one of which the laser beam is attenuated in comparison to a laser beam traveling in another scanning direction. A scanning optical path detecting device detects whether or not the laser beam is being scanned in the scanning direction in which it is attenuated. The laser beam scanning apparatus further includes a device for detecting a laser beam reflected from a bar code scanned by a laser beam emanating from the scanning direction changing device, and a device for controlling the intensity of the laser beam incident on the laser beam detecting device in response to the result of detection made by the scanning optical path detecting device.

REFERENCES:
patent: 3619033 (1971-11-01), McMahon
patent: 4594001 (1986-06-01), DiMatteo et al.
patent: 5288983 (1994-02-01), Nakazawa

Affiliated with

Also associated with

Rating

Laser beam scanning apparatus having arrangement for maintaining does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser beam scanning apparatus having arrangement for maintaining, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser beam scanning apparatus having arrangement for maintaining will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1787551