Portable laser diode scanning head having a focusing lens and an

Details Portable laser diode scanning head having a focusing lens and an Portable laser diode scanning head having a focusing lens and an

1991-04-24

1993-09-21

Shepperd, John

Registers

Coded record sensors

Particular sensor structure

235472, 359214, G06F 710

Patent

active

052471624

ABSTRACT:
A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed. Also disclosed is an optic means mounted in the laser diode scanning head including a focusing lens and an aperture stop for forming the emitted laser light to have a beam cross-section of an altered size within a working distance range.

REFERENCES:
patent: 4019026 (1977-04-01), Nakanishi et al.
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patent: 4560862 (1985-12-01), Eastman et al.
patent: 4603262 (1986-07-01), Eastman et al.
patent: 4816660 (1989-03-01), Swartz et al.
patent: 4835374 (1989-05-01), Swartz et al.
Literature from Microscan Systems, Inc., Tukwila, Wash. on MS-1000 Laser Scanner.
Richard A. Zeine, Jr., "Bureau of Radiation Health (BRH) Report for Microscan MS1000 Scanner", Sep. 1, 1982.
Affidavit of Richard Zeine, Jul. 9, 1992, filed in Civ. Action 92-CV-6278T, U.S. Dist. Ct., W.D.N.Y.
Affidavit of Michael E. Mertel, Aug. 6, 1992, filed in Civ. Action 92-CV-6278T, U.S. Dist. Ct., W.D.N.Y.
Laser Scanner (Product Description of Model MS-1000 by Microscan), EDN, Dec. 17, 1982, pp. 319-320.

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