Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1997-06-05
1998-09-22
Le, Que
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
2502014, 235462, G06K 710
Patent
active
058118284
ABSTRACT:
A portable optical reader system for reading optical information over a substantial range of distances includes a casing having a light receiving opening for alignment with optical information. Further included is a reading sensor for converting a reflected light image of optical information into an information signal and reflected light optical elements for forming a reflected light image. The optical system is adjustable to tend to focus a reflected light image of optical information, located within a substantial range of distances, onto the reading sensor. A light beam generator is associated with the casing and directed relative to the optical elements and the light receiving opening such that a light beam generated thereby will impinge on an information carrier, having optical information to be read, and will be reflected therefrom through the light receiving opening and via the optical elements to the reading sensor. Since the position of impingement of the reflected light beam on the reading sensor is a function of the range of the information carrier from the image sensor, the optical system may be adjusted to focus a reflected light image of optical information associated with the information carrier, at least in part, according to the position of impingement of the reflected light beam on the reading sensor.
REFERENCES:
patent: 4101072 (1978-07-01), Weaver et al.
patent: 4136821 (1979-01-01), Sugiura et al.
patent: 4188103 (1980-02-01), Biber et al.
patent: 4210802 (1980-07-01), Sakai
patent: 4282425 (1981-08-01), Chadima et al.
patent: 4323925 (1982-04-01), Abell et al.
patent: 4335302 (1982-06-01), Robillard
patent: 4389103 (1983-06-01), Kramer
patent: 4422745 (1983-12-01), Hopson
patent: 4488679 (1984-12-01), Bockholt et al.
patent: 4500776 (1985-02-01), Laser
patent: 4516017 (1985-05-01), Hara et al.
patent: 4570057 (1986-02-01), Chadima et al.
patent: 4578571 (1986-03-01), Williams
patent: 4603262 (1986-07-01), Eastman et al.
patent: 4660096 (1987-04-01), Arlan et al.
patent: 4874933 (1989-10-01), Sanner
patent: 4877949 (1989-10-01), Danielson
patent: 4900907 (1990-02-01), Matusima et al.
patent: 5075539 (1991-12-01), Shiraishi
patent: 5081343 (1992-01-01), Chadima, Jr. et al.
patent: 5130520 (1992-07-01), Shepard et al.
patent: 5159455 (1992-10-01), Cox et al.
patent: 5192856 (1993-03-01), Schaham
patent: 5210398 (1993-05-01), Metlitsky
patent: 5378883 (1995-01-01), Batterman et al.
patent: 5414251 (1995-05-01), Durbin
patent: 5442167 (1995-08-01), Cornelius et al.
patent: 5468950 (1995-11-01), Hanson
patent: 5500516 (1996-03-01), Durbin
patent: 5534684 (1996-07-01), Danielson
patent: 5550364 (1996-08-01), Rudeen
patent: 5576529 (1996-11-01), Koenck et al.
patent: 5598007 (1997-01-01), Bunce et al.
patent: 5627360 (1997-05-01), Rudeen
patent: 5640001 (1997-06-01), Danielson et al.
Le Que
Norand Corporation
LandOfFree
Portable reader system having an adjustable optical focusing mea does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable reader system having an adjustable optical focusing mea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable reader system having an adjustable optical focusing mea will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1624616