Patent JPS5946346A successfully refreshed from Google Patents.
EP0341717B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Mirrorless scanner with movable laser and optical components
Assignee: Symbol Technologies LLC
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Filing: 1989-05-11
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Granted: 1997-07-23
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Expires: 2009-05-11
Abstract
No abstract record available.
Inventors
- 👤 Edward Barkan
- 👤 Howard Shepard
- 👤 Boris Metlitsky
- 👤 Mark Krichever
- 👤 Jerome Swartz
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 12:35
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10881; G06K7/10891; G06K7/10554; G06K7/10564; G06K7/10584; G06K7/10594; G06K7/10603; G06K7/10633; G06K7/10643; G06K7/10653; G06F; G06F2203/00; G06F2203/033; G06F2203/0331; G06K2207/00; G06K2207/1016
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
211 words
A replaceable modular light-scanning assembly for use in a light scanning system adapted for reading indicia having parts of differing reflectivity, the assembly comprising: (a) a light source component (32) for emitting a light beam; (b) an optical component (34,36) for optically modifying and directing the light beam along an optical path (74) towards indicia located in the vicinity of a reference plane exteriorly of the system; (c) a photodetector component (44) having a field of view and operative for detecting at least a portion of light of variable intensity reflected off an indicia, and for generating an electrical signal indicative of the detected light intensity; (d) a common support (14) on which the light source component, the optical component and the photodetector component are mounted; (e) connector means (54') for electrically and detachably interconnecting the assembly, in use, to other components; characterised in that the light source component (32) and the optical component (34,36) together form a sub-assembly (28) which is mounted on a sub-assembly support (26,80), in that the optical component comprises a lens, and in that scanning motion of the light beam is effected only by drive means (20) which reciprocatingly moves the sub-assembly support (26,80) with respect to the photodetector component (44) and the common support (14).
Claim 2
Dependent Claim
32 words
A replaceable assembly as claimed in claim 2 in which the sub-assembly (28) comprises a laser/optics sub-assembly including a semiconductor laser diode (32), a focusing lens (36) and an aperture stop (38).
Claim 3
Dependent Claim
27 words
A replaceable assembly as claimed in claim 1 in which the photodetector component (44) is mounted to a printed circuit board (46) of the common support (14).
Claim 4
Dependent Claim
28 words
A replaceable assembly as claimed in claim 1 or claim 2 in which the drive means (20) turns the sub-assembly (22) in alternate circumferential directions about an axis.
Claim 5
Dependent Claim
35 words
A replaceable assembly as claimed in claim 5 in which the drive means (20) moves the sub-assembly (28) in a plane which is substantially perpendicular to an optical axis which extends along the optical path.
Claim 6
Dependent Claim
44 words
A replaceable assembly as claimed in any one of the preceding claims in which the scanning motion is effected in one direction and in which scanning motion in a perpendicular direction is further effected by reflecting the light beam from an oscillating mirror (112).
Claim 7
Independent Claim
16 words
An apparatus including a replaceable light-scanning assembly as claimed in any one of the preceding claims.
Claim 8
Dependent Claim
27 words
An apparatus as claimed in claim 7 including a housing having a hand-held head portion including manually actuated trigger means operative for initiating reading of an indicia.
Claim 9
Dependent Claim
11 words
An apparatus as claimed in claim 7 comprising a desk-top workstation.
Claim 10
Dependent Claim
11 words
An apparatus as claimed in claim 7 comprising a stationary installation.
References Cited (Backward Citations)
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