Optical scanning device having a distance sensor and a...

Details Optical scanning device having a distance sensor and a... Optical scanning device having a distance sensor and a...

2007-01-29

2009-02-17

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

C250S208100

Reexamination Certificate

active

07491956

ABSTRACT:
An optical scanning device is provided. The optical scanning device an excitation light source that is operable to illuminate the object to be scanned. An image detector is operable to detect excited emission rays through illumination of the object to be scanned by the excitation light source and imaging optics that dictate a focal distance. The image detector detects a scan image of the emission radiation of the object to be scanned with the highest level of image sharpness if the focal distance is maintained. A control device includes a distance sensor through which a distance between an optical scanning device and the object to be scanned can be measured, wherein maintenance of the focal distance as the function of the measured distance can be checked by the control device.

REFERENCES:
patent: 5216230 (1993-06-01), Nakazawa
patent: 6783068 (2004-08-01), Hecht
patent: 25 37 482 (1977-03-01), None
patent: 101 32 624 (2002-01-01), None
patent: WO 9603708 (1996-02-01), None
patent: WO 01/22870 (2001-04-01), None
German Office Action for DE 10 2006 004 583.1-51 dated Oct. 2, 2006 in English.

Affiliated with

Also associated with

Rating

Optical scanning device having a distance sensor and a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical scanning device having a distance sensor and a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical scanning device having a distance sensor and a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4127140