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 Title: |
US4760248:
Portable laser diode scanning head
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Swartz, Jerome; Setauket, NY
Shepard, Howard M.; Great River, NY
Barkan, Eric F.; San Francisco, CA
Krichever, Mark J.; Hauppauge, NY
Metlitsky, Boris; Hauppauge, NY
Barkan, Edward; South Setauket, NY
Adelson, Alexander M.; Peekskill, NY
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| Assignee: |
Symbol Technologies, Inc., Bohemia, NY
other patents from SYMBOL TECHNOLOGIES, INC. (676549) (approx. 602)
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| Published / Filed: |
1988-07-26
/ 1987-10-29
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| Application Number: |
US1987000113898
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| IPC Code: |
Advanced:
G02B 26/10;
G06K 7/00;
G06K 7/10;
G11B 7/12;
G11B 7/135;
H01S 5/00;
H04N 1/028;
H04N 1/107;
H04N 1/113;
IPC-7:
G06K 7/10;
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| ECLA Code: |
G06K7/10S9F; G06K7/10S2P2D; S06K207/101A;
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| U.S. Class: |
Current:
235/462.21;
235/462.07;
235/462.36;
235/472.01;
Original:
235/472;
235/467;
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| Field of Search: |
235/467,472
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| Priority Number: |
| 1987-10-29 |
US1987000113898 |
| 1985-02-28 |
US1985000706502 |
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| 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.
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| Attorney, Agent or Firm: |
Kirschstein, Kirschstein, Ottinger & Israel ;
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| Primary / Asst. Examiners: |
Pitts, Harold I.;
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Parent Case: |
This is a division, of application Ser. No. 706,502 filed Feb. 28, 1985.
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| Designated Country: |
DE FR GB IT
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| Family: |
Show 64 known family members
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First Claim:
Show all 13 claims |
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims:
1. In a laser scanning system for reading symbols, a laser scanning head comprising:
- (a) means including an actuatable laser light source mounted in the head and operative, when actuated, for generating an incident laser beam;
- (b) optic means mounted in the head for optically forming and directing said incident laser beam along a first optical path to a substantially planar scanning mirror for reflection therefrom toward a reference plane located exteriorly of the head, and to a symbol located in a working distance range in the vicinity of the reference plane, thereby reflecting off the symbol reflected laser light, at least a returning portion of which travels along a second optical path away from the symbol back toward the head;
- (c) scanning means mounted in the head for moving the scanning mirror and for sweeping said incident laser beam in a scan across the symbol, said returning portion of said reflected laser light having a variable intensity over the scan;
- (d) sensor means mounted in the head for detecting the variable intensity of said returning portion of said reflected laser light over a field of view, and for generating an electrical analog signal indicative of the detected variable light intensity;
- (e) a reciprocally oscillatable spherical mirror mounted to the scanning mirror for joint movement therewith and operative, when moved by the scanning means, for collecting said returning portion of said reflected laser light over the field of view, and for directing said collected returning portion to the sensor means;
- (f) signal processing means mounted in the head for processing the analog electrical signal, and for generating a processed signal indicative of the symbol; and
- (g) manually-actuatable trigger means on the head and operatively connected to, and operative for actuating, the scanning and spherical mirrors, the laser beam generating means, the scanning means, the sensor means and the signal processing means, to initiate a reading of the symbol upon manual actuation of the trigger means by the user, said trigger means being actuatable for each symbol to be read, each symbol in its respective turn.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 236 U.S. patent(s) that reference this one
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