Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1995-09-21
1998-03-17
Nelms, David C.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369 54, 369 58, 369110, G11B 7125
Patent
active
057295204
ABSTRACT:
The invention pertains to a method and a device for carrying out the quality control of an object (10) that comprises at least one transparent layer (18). According to this method and this device, at least one light beam (41) of a light source (42) is projected onto the object (10) at an angle (.alpha.) and is received by at least one photosensitive receiver (53). According to the invention, it is proposed that the light beam (48) that emerges from the object be split before it is projected onto the first photosensitive receiver (53), with part of the light beam being deflected in the direction toward a second photosensitive receiver (62). This measure makes it possible to expose simultaneously two different photosensitive receivers (53, 62) so as to display different defects of an object (10).
REFERENCES:
patent: 4030835 (1977-06-01), Firester et al.
patent: 4841510 (1989-06-01), Yoshizawa
patent: 4941138 (1990-07-01), Childa et al.
patent: 5131755 (1992-07-01), Chadwick et al.
patent: 5475667 (1995-12-01), Kamimura et al.
Basler GmbH
Chu Kim-Kwok
Nelms David C.
LandOfFree
Inspection of an optical disc with a light beam which is reflect does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Inspection of an optical disc with a light beam which is reflect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inspection of an optical disc with a light beam which is reflect will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-964479