Ishwar S Singh

US Patent:

51325241, Jul 21, 1992

Filed:

May 21, 1990

Appl. No.:

7/526455

Inventors:

Ishwar Singh - Winter Springs FL
William Senkevich - Longwood FL
William C. Daley - Longwood FL

Assignee:

LazerData Corporation - Orlando FL

International Classification:

G06K 710

US Classification:

235467

Abstract:

An multi directional laser scanner apparatus has a frame along with a plurality of lasers removably mounted in circular fashion to the frame for producing a plurality of light beams. A multi-faceted rotating mirror assembly is rotatably mounted to the frame and rotated by an electric motor and is aligned with a plurality of laser output beams. A plurality of fixed mirrors are attached in pairs to the frame and positioned for reflecting the light energy of the laser beam being reflected by the rotatable mirror assembly in a pattern onto a coded surface and positioned for receiving reflected beams from the coded surface and than directing the reflected beams in a reverse path onto the rotating mirror assembly and back towards each laser. A mirror mounted adjacent the output of each laser reflects each returning laser beam onto a photocell mounted to the frame for receiving the reflected signals from the coded surface and the signals are processed to read the coded signals. An alternate embodiment replaces two of the fixed array mirrors with a galvanometer and mirror assembly which oscillates a mirror affixed to each galvanometer to produce a second set of output scan lines over the primary laser output scan lines onto a bar code to reduce the chance that a small bar code will not be read by the primary scanner.

US Patent:

50120794, Apr 30, 1991

Filed:

Nov 13, 1989

Appl. No.:

7/435158

Inventors:

Ishwar Singh - Winter Springs FL
William Senkevich - Longwood FL

Assignee:

LazerData Corporation - Orlando FL

International Classification:

G06K 710

US Classification:

235467

Abstract:

A rotatable bar code scanner mirror assembly includes a rotatable mirror support frame operatively coupled to an electric motor shaft for rotation with the motor shaft. A plurality of mirrors are attached to the rotatable mirror support frame with each mirror mounted to a frame in a different plane intersecting at least one other plane of a mirror mounted to the support frame. Each mirror is shaped to have a pair of generally flat offset portions, offset from each other, on opposite sides of a center axis and each offset portion is connected with a center mirror portion so that a return laser beam can be reflected off the offset portions and the outgoing laser beam reflected off the center portion so that the outgoing and return beams use the same scanner mirror assembly. Each of the offset portions is a generally rectangular shaped, flat mirror giving the mirror a zig-zag shape portion and each mirror is attached to a pair of generally parallel faceted frame portions to form a continuous faceted mirror assembly. The offset portions are formed to allow the return signal to be equalized.