Patent US4969037A successfully refreshed from Google Patents.
US4969037A
Expired / Lapsed
US
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Arrangement for illuminating and detecting parts in an image processing system
Assignee: Siemens AG
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Filing: 1989-08-02
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Granted: 1990-11-06
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Expires: 2009-08-02
Abstract
Abstract An optical pick-up device for image processing systems has an objective for generating an optical image of a subject to be registered, an image-to-signal transducer, particularly a CCD camera that converts the optical image into a video signal and an illumination device for illumination of the subject to be registered in incident light. The rugged and high-performance illumination device, that yields an optimum light distribution in the plane of registration, has a plurality of infrared diodes that are arranged with equal spacing on at least one circle coaxial with the optical axis of the objective. It also has at least one annular deflection device that is similarly arranged coaxial with the optical axis. This deflection device concentrates the light emitted by the infrared diodes obliquely onto the subject from all sides.
Inventors
- 👤 Richard Poleschinski
- 👤 Detlef Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:15
CPC Classifications
G; G01; G01B; G01B11/00; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/8806; H; H04; H04N; H04N23/00; H04N23/56; H04N23/70; H04N23/74; G01N21/8851; G01N2021/8887; G01N2201/00; G01N2201/10; G01N2201/102
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
149 words
An optical pick-up for use in an image processing system, said pick-up means comprising: objective means for generating an optical image of a subject, said objective means having an optical axis; semiconductor means for converting said optical image into electrical signals; illumination means for illuminating said subject, said illumination means having a plurality of infrared diodes emitting infrared radiation, each of said diodes having an emission intensity, said diodes laterally surrounding said objective means, said plurality of infrared diodes equally spaced around at least one circle, said at least one circle being in coaxial alignment with said optical axis; annular deflection means for deflecting said infrared radiation emitted from said diodes, said annular deflection means obliquely concentrating said infrared radiation emitted from said diodes onto said subject from all sides, means for housing said optical pick-up means, said means for housing having an objective housing and an outer housing.
Claim 2
Dependent Claim
149 words
An optical pick-up for use in an image processing system, said pick-up means comprising: objective means for generating an optical image of a subject, said objective means having an optical axis; semiconductor means for converting said optical image into electrical signals; illumination means for illuminating said subject, said illumination means having a plurality of infrared diodes emitting infrared radiation, each of said diodes having an emission intensity, said diodes laterally surrounding said objective means, said plurality of infrared diodes equally spaced around at least one circle, said at least one circle being in coaxial alignment with said optical axis; annular deflection means for deflecting said infrared radiation emitted from said diodes, said annular deflection means obliquely concentrating said infrared radiation emitted from said diodes onto said subject from all sides, means for housing said optical pick-up means, said means for housing having an objective housing and an outer housing.
Claim 3
Dependent Claim
16 words
An optical pick-up as in claim 1, wherein said illumination means is in a dark field.
Claim 4
Dependent Claim
17 words
An optical pick-up as in claim 1, wherein said emission intensity of said diodes is current dependent.
Claim 5
Dependent Claim
24 words
An optical pick-up as in claim 1, wherein said electrical signals are used as regulating variables for controlling said emission intensity of the diodes.
Claim 6
Dependent Claim
41 words
An optical pick-up as in claim 4, wherein a first electrical signal regulates said control of emission intensity for a first group of diodes and a second electrical signal regulates said control of emission intensity for a second group of diodes.
Claim 7
Dependent Claim
17 words
An optical pick-up as in claim 5, wherein said diodes are divided into at least 4 groups.
Claim 8
Dependent Claim
27 words
An optical pick-up as in claim 5, wherein the control of emission intensity of each of said groups of diodes is regulated by a separate brightness sensor.
Claim 9
Dependent Claim
21 words
An optical pick-up as in claim 1, wherein said diodes are secured on an annular disk to form a diode carrier.
Claim 10
Dependent Claim
22 words
An optical pick-up as in claim 1, wherein said annular deflection means is arranged at the same height as said objective means.
Claim 11
Dependent Claim
19 words
An optical pick-up as in claim 1, wherein an outside surface of said objective housing carries a mirror coating.
Claim 12
Dependent Claim
23 words
An optical pick-up as in claim 1, wherein said objective means, said illumination means and said annular deflection means form an integrated structure.
Claim 13
Dependent Claim
16 words
An optical pick-up as in claim 1, wherein said annular deflection means comprises an annular mirror.
Claim 14
Dependent Claim
16 words
An optical pick-up as in claim 1, wherein said annular deflection means comprises an annular lens.
Claim 15
Dependent Claim
95 words
An optical pick-up for use in an image processing system, said pick-up comprising: objective means for generating an optical image of a subject, said objective means having an optical axis; semiconductor image-to-signal converting means for converting said optical image into electrical signals; illumination means for illuminating said subject, said illumination means having a plurality of infrared diodes equally spaced in a circle, said circle being coaxial with said optical axis, said diodes emitting infrared radiation at an emission intensity; and, annular deflection means for obliquely concentrating said infrared radiation from said diodes onto said subject.
Claim 16
Dependent Claim
95 words
An optical pick-up for use in an image processing system, said pick-up comprising: objective means for generating an optical image of a subject, said objective means having an optical axis; semiconductor image-to-signal converting means for converting said optical image into electrical signals; illumination means for illuminating said subject, said illumination means having a plurality of infrared diodes equally spaced in a circle, said circle being coaxial with said optical axis, said diodes emitting infrared radiation at an emission intensity; and, annular deflection means for obliquely concentrating said infrared radiation from said diodes onto said subject.
Claim 17
Dependent Claim
23 words
An optical pick-up as recited in claim 14, wherein said emission intensity is controlled by varying a flow of current through said diodes.
Claim 18
Dependent Claim
32 words
An optical pick-up as recited in claim 15, wherein said electrical signals of said semiconductor image-to-signal converting means are utilized as regulating variable to control said flow of current through said diodes.
Claim 19
Dependent Claim
38 words
An optical pick-up as recited in claim 14, wherein said diodes are grouped in a plurality of groups, each group of said plurality of groups having its respective emission intensity controllable by varying a flow of current therethrough.
Claim 20
Dependent Claim
26 words
An optical pick-up as recited in claim 17, wherein each of said plurality of groups is formed by combining groups of said diodes according to quadrants.
Claim 21
Dependent Claim
30 words
An optical pick-up as recited in claim 17, further comprising brightness sensors for detecting light reflected from said subject and controlling said flow of current based on said reflected light.
Claim 22
Dependent Claim
20 words
An optical pick-up as recited in claim 14, further comprising an annular disk diode carrier having said diodes secured thereto.
Claim 23
Dependent Claim
17 words
An optical pick-up as recited in claim 14, wherein said annular deflection means comprises an annular lens.
Claim 24
Dependent Claim
17 words
An optical pick-up as recited in claim 14, wherein said annular deflection means comprises an annular mirror.
Claim 25
Dependent Claim
30 words
An optical pick-up as recited in claim 14, wherein said annular mirror is formed by a conical housing section of an outer housing, said outer housing having a mirrored surface.
Claim 26
Dependent Claim
23 words
An optical pick-up as recited in claim 14, wherein said plurality of said infrared diodes equally spaced in said circle surround said objective.
Claim 27
Dependent Claim
22 words
An optical pick-up as recited in claim 14, wherein said annular deflection means and said objective are located at approximately similar heights.
Claim 28
Dependent Claim
26 words
An optical pick-up as recited in claim 14, wherein said objective means, said illumination means, and said annular deflection means are integrated within a single housing.
References Cited (Backward Citations)
US4026414A
Cited
US4293219A
Cited
GB2042164A
Cited
DE2916361A1
Cited
EP0047936A1
Cited
US4454542A
Cited
GB2159617A
Cited
EP0209077B1
Cited
US4775889A
Cited
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