Registers – Coded record sensors – Particular sensor structure
Patent
1989-01-26
1990-06-05
Arnold, Bruce Y.
Registers
Coded record sensors
Particular sensor structure
235467, 235472, G02B 2610, G06K 710
Patent
active
049308483
ABSTRACT:
A hand held laser scanner including a housing comprising a hand-grip portion and a body portion. The body portion is hollow and includes a self-contained laser scanner module releasable secured therein. The module is housed within a enclosure having a window, and comprises a source of laser light, a mechanism for sweeping the laser beam within the enclosure to produce a scan pattern comprising at least one line, a reflective beam folding system for projecting the pattern out of the window and onto an object, such as a bar code, and a system for receiving light reflected off the object to convert the reflected light into an electrical signal indicative thereof. The beam sweeping mechanism comprises an oscillating reflective member. The reflective beam folding system comprises at least two mirrors disposed generally opposite each other to receive the beam of light from the beam sweeping mechanism and to fold its path by reflecting it back and forth within the enclosure. The module includes an output conductor for carrying signals from it which are indicative of the bar code scanned to decoding means located within a hollow cavity in the housing's hand-grip portion.
REFERENCES:
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patent: 4349843 (1982-09-01), Laakmann et al.
patent: 4387297 (1983-06-01), Swartz et al.
patent: 4409470 (1983-10-01), Shepard et al.
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patent: 4575625 (1986-03-01), Knowles
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patent: 4760248 (1988-07-01), Swartz et al.
patent: 4762994 (1988-08-01), Byerly et al.
Metrologic MS123 Laser Data Terminal, Apr. 1981.
Metrologic MS131 Laser Scanning Head, Copyright 1984, printed Sep. 1984.
Arnold Bruce Y.
Kachmarik Ronald M.
Metrologic Instruments Inc.
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