IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0990047
(2001-11-20)
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발명자
/ 주소 |
- Peter, Karlheinz Walter
- Spilz, Rolf Johannes
- Metzler, Patrick
- Theden, Stefan
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
5 |
초록
▼
The invention relates to a device for detecting the location of an edge (2) of a transparent, anisotropic material (3,3′) comprising at least one sensor (1) with a light source (4), two polarization filters (6,7) with transmission axes (8,9) meeting at a 90° angle as well as a light detector (10), w
The invention relates to a device for detecting the location of an edge (2) of a transparent, anisotropic material (3,3′) comprising at least one sensor (1) with a light source (4), two polarization filters (6,7) with transmission axes (8,9) meeting at a 90° angle as well as a light detector (10), whereby the light source (4) and one polarization filter (6) are located on one side of the edge (2) to be detected and the second polarization filter (7) and the light detector are located on the other side. This type of device is to be configured in such a way that it can be used for detecting material (3,3′) with optical axes (14) in various directions without requiring assembly. This is achieved by at least one of the sensors (1) being configured and/or adjustable so that various angles (32) between the transmission axis of the first polarization filter (6) and the optical axis (14) of the transparent, anisotropic material (3,3′) are possible. In addition, the invention is equipped for a web control edge (16) and printing press with such a web edge control.
대표청구항
▼
1. Device for detection of the location of an edge ( 2) of a transparent, anisotropic material (3,3′) comprising: at least one sensor (1) with a light source (4), two polarization filters (6,7) with transmission axes (8,9) meeting at a 90° angle as well as a light detector (10), whereby the light so
1. Device for detection of the location of an edge ( 2) of a transparent, anisotropic material (3,3′) comprising: at least one sensor (1) with a light source (4), two polarization filters (6,7) with transmission axes (8,9) meeting at a 90° angle as well as a light detector (10), whereby the light source (4) and one polarization filter (6) are located on one side of the edge (2) to be detected and the second polarization filter (7) and the light detector (10) are located on the other side and whereby at least one of the sensors (1) can be arranged and/or configured so that various angles (32) between the transmission axis (8) of the first polarization filter (6) and the optical axis (14) of the transparent, anisotropic material (3,3′) are possible.2. Device according to claim 1, characterized in that an angle (32) is selected in which a turn of the light (5) emitted from the first polarization filter (6) passes through the material (3,3′) to be detected to a sufficient extent that it can detect an edge (2).3. Device according to claim 2, characterized in that an angle (32) is selected in which one of the best possible images of the edge (2) on the light detector (10) is possible.4. Device according to claim 3, characterized in that the transmission axis (8) of the first polarization filter (6) to the optical axis (14) of the transparent material (3,3′) forms an angle in the 25° to 65′ range.5. Device according to claim 1 characterized in that taco defined angle positions (12′,12″) have been used and the angle position (12′,12″) in which the edge (2) is better shown is selected for the respective material (3,3′).6. Device according to claim 5 characterized in that that a drive (13) is used that places the one sensor (1) in the optimal position (11,11′,11″, . . . ).7. Device according to claim 2 characterized in that a control (15) is used that is connected to the light detector (10) and that the angle position (12′,12″) for showing the edge (2) is selected on the light detector (10).8. Device according to claim 7, characterized in that a control (15) is used that adjusts the intensity of the light source (4).9. Device according to claim 8, characterized in that a control (15) is used that adjusts the responsivity of the light detector.10. Device according to claim 9, characterized in that the control (15) has been programmed with set points for defined angle positions (12′,12″).11. Device according to claim 1 ,characterized in that the light detector (10) As constructed of several receiving components.12. Device according to claim 1 characterized in that the light detector (10) is configured as a flat receiver.13. Device according to claim 1 characterized in that the light detector (10) comprises a row of receiving components.14. Web edge control ( 16) with a device according toclaim 1 a control (15) and a web edge control (18), characterized in that at least one of the sensors (1) faces ′e edge (2) of a transparent, anisotropic web (3′) to be detected is configured or arranged so that all possible courses of the optical axes (14) due to a change of the optical axis (14) of the/a web (3′) can be taken.
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