Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2005-02-15
2005-02-15
Le, Thien M. (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462010, C235S462050, C235S462390
Reexamination Certificate
active
06854649
ABSTRACT:
An optoelectronic device for detecting marks having defined contrast patterns includes a transmitter for emitting transmitted light beams having a wavelength λ in a range of 350 nm ≦λ≦450 nm. A transmission lens is located downstream of the transmitter. A receiver is provided for receiving received light beams and generating reception signals corresponding to the received light beams. A receiving lens is located upstream of the receiver and has an area ACof less than or equal to 5 cm2. A guiding mechanism guides the transmitted light beams at the marks and the reflected light beams from the marks as received light beams to the receiver. An evaluation unit is coupled to an output of the receiver for evaluating the reception signals.
REFERENCES:
patent: 4983817 (1991-01-01), Dolash et al.
patent: 5525798 (1996-06-01), Berson et al.
patent: 5701001 (1997-12-01), Sugifune et al.
patent: 6045045 (2000-04-01), Detwiler
patent: 6049406 (2000-04-01), Zocca
patent: 6193157 (2001-02-01), Dickson et al.
patent: 6273337 (2001-08-01), Detwiler et al.
patent: 6294776 (2001-09-01), Miksch et al.
patent: 6311894 (2001-11-01), Miyajima et al.
patent: 6460770 (2002-10-01), Kucharczyk
patent: 20010042787 (2001-11-01), Yomogida et al.
patent: 43 37 718 (1995-04-01), None
patent: 198 42 352 (2000-03-01), None
patent: 199 20 311 (2000-11-01), None
patent: 9519605 (1995-07-01), None
Daoqi Yu, Miklos Stern and Joseph Katz, Speckle Noise in Laser Bar-Code-Scanner Systems, Applied Optics, vol. 35, No. 1, Jul. 1, 1996, pp. 3687-3694.
Strichcodeleser BCL 21/22 mit integriertem Decoder und Anschlusseinheit MA2', Technische Beschreibung, 1998, Leuze Electronic GmbH + Co., Owen Teck, pp. 1-4, 10-13, 39.
Droemer Jörg
Worner Jörg
Le Thien M.
Leuze Electronic GmbH & Co.
Trail Allyson N.
Venable LLP
Voorhees Catherine M.
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