Patent Name Improved Scanner Patent Application No. 6 Publication No.: 1519109
Application Date: 2004.01.14 Public Day 2004.08.11
Applicant: British Quaid Technology Co., Ltd. This invention provides a scanning head for detecting an alignment mark on a printing web during relative movement between a printing net and a scanning head. The scanning head includes: A photosensitive element and a first photomask having a hole may define the viewing area of ​​the photosensitive element via the aperture. The scan head is compact and inexpensive. It uses an internal LED light source in addition to its inherently safe operation. It can also perform multiple modes of operation. Scanning heads are versatile and can be operated with high sensitivity and accuracy even with a low-contrast medium including a silk/floating female mark or for fold line alignment or with a transparent medium.
Application Date: 2004.01.14 Public Day 2004.08.11
Applicant: British Quaid Technology Co., Ltd. This invention provides a scanning head for detecting an alignment mark on a printing web during relative movement between a printing net and a scanning head. The scanning head includes: A photosensitive element and a first photomask having a hole may define the viewing area of ​​the photosensitive element via the aperture. The scan head is compact and inexpensive. It uses an internal LED light source in addition to its inherently safe operation. It can also perform multiple modes of operation. Scanning heads are versatile and can be operated with high sensitivity and accuracy even with a low-contrast medium including a silk/floating female mark or for fold line alignment or with a transparent medium.
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