Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2011-08-02
2011-08-02
Phan, James (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
C359S205100, C359S219200, C235S462390, C235S462400
Reexamination Certificate
active
07990599
ABSTRACT:
Barcode scanning device (3) includes a rotatable polygon mirror (27) and a first fixed reflection mirror (33). The polygon mirror (27) comprises a first reflection surfaces (c), (e) and a second reflection surfaces (a), (b), (d), (f). The first reflection surfaces (c), (e) reflect laser light and thus emitting first scanning light in a range of ±20° with respect to an optical axis (29). The second reflection surfaces (a), (b), (d), (f) reflect laser light and thus emitting second scanning light in a range larger than ±20° with respect to an optical axis (29). The first fixed reflection mirror (33) reflects the first scanning light and second scanning light forming scanning patterns in an object readable area. These scanning patterns are composed of a plurality of second scanning lines each parallel with other and first scanning lines disposed between the second scanning lines.
REFERENCES:
patent: 5223700 (1993-06-01), Takenaka
patent: 5268565 (1993-12-01), Katoh et al.
patent: 6581832 (2003-06-01), Kato et al.
patent: 2003/0201329 (2003-10-01), Kumagai et al.
patent: 0 697 674 (1996-02-01), None
patent: H 06-131490 (1994-05-01), None
patent: WO 98/24046 (1998-06-01), None
08020449.8-2210 European Search Report dated Apr. 6, 2009.
Gocho Katsumi
Kakino Tomonari
Patterson & Sheridan LLP
Phan James
Toshiba Tec Kabushiki Kaisha
LandOfFree
Barcode scanning device and method for producing high... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Barcode scanning device and method for producing high..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Barcode scanning device and method for producing high... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2732693