Narrow-bodied, single- and twin-windowed portable laser scanning

Details Narrow-bodied, single- and twin-windowed portable laser scanning Narrow-bodied, single- and twin-windowed portable laser scanning

1990-04-02

1991-09-10

Trafton, David

Registers

Coded record sensors

Particular sensor structure

235462, 235472, G06K 710

Patent

active

050476173

ABSTRACT:
A narrow-bodied single-and twin-windowed hand-held, laser scanning head for reading bar code symbols includes at least one window mounted at the rear region of the head, and through which either the incident beam going to the symbol and/or the reflected beam returning from the symbol, passes unobstructedly and exteriorly of, and past, the front and intermediate body regions of the head. A field-replaceable laser tube arrangement, a laser tube and method of making the same, an arrangement for and method of controlling a scanning system, optical passive elements for increasing the depth of field, a trigger protective device, and a one-piece support bench and method of fabricating the same by mass-production techniques are also disclosed.

REFERENCES:
patent: 4251798 (1981-02-01), Swartz et al.
patent: 4387297 (1983-06-01), Swartz et al.
patent: 4845350 (1989-07-01), Shepard et al.
Preliminary Operator's Manual for MS131 Laser Data Terminal dated Dec. 1981.
Operator's Manual for M131 Laser Data Terminal Revised Oct. 1982.
Metrologic, Inc. flyer relating to the MS131 laser head bearing copyright date 1983.
Metrologic, Inc. flyer relating to Metrologic controllers and scanning heads bearing copyright date 1984.
Technical Manual for Metroscan II, Model SS-100 Bar Code Scanning System, printed by Metrologic, Inc., dated Oct. 1978.
Metrologic Product Line Information, including Preliminary Specifications: MS131 Laser Bar Code Scanner, circa Apr. 1981.

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