EP 0388454 A4 19930512 - APPARATUS AND METHOD FOR INSPECTING GLASS SHEETS
Title (en)
APPARATUS AND METHOD FOR INSPECTING GLASS SHEETS
Publication
Application
Priority
US 23721688 A 19880826
Abstract (en)
[origin: WO9002310A1] A pair of bent glass sheets (28, 29) are supported along a peripheral edge portion (26) in a nesting fixture (20) below a gap detector (21) for detecting ''good'' and ''bad'' nested pairs of glass sheets. The gap detector includes a laser beam source (34) for directing a light beam (35) at an outer surface of the nested sheets in a line generally perpendicular to a longitudinal axis of the sheets. A reflected beam (39) from the surface of the sheets is sensed by a row of cameras (43) which generate an image of the contours of the sheets. The image is compared with predetermined limits to detect unacceptable gaps between the sheets or unacceptable contour deviations.
IPC 1-7
IPC 8 full level
G01B 11/245 (2006.01); G01B 11/30 (2006.01); G01N 21/84 (2006.01)
CPC (source: EP KR)
G01B 11/245 (2013.01 - EP); G01B 11/30 (2013.01 - KR); G01B 11/303 (2013.01 - EP)
Citation (search report)
- [A] US 4255055 A 19810310 - SCHAVE RICHARD D
- [A] US 3736065 A 19730529 - CUSHING C J, et al
- PATENT ABSTRACTS OF JAPAN vol. 7, no. 138 (P-204)(1283) 16 June 1983 & JP-A-58 52 504 ( NIHON ITA GLASS K.K. ) 28 March 1983
- See references of WO 9002310A1
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9002310 A1 19900308; AU 4207789 A 19900323; AU 607868 B2 19910314; BR 8907064 A 19910102; EP 0388454 A1 19900926; EP 0388454 A4 19930512; ES 2014888 A6 19900716; FI 902098 A0 19900426; JP H03501058 A 19910307; KR 900702325 A 19901206; ZA 896509 B 19900530
DOCDB simple family (application)
US 8903566 W 19890818; AU 4207789 A 19890818; BR 8907064 A 19890818; EP 89910295 A 19890818; ES 8902939 A 19890825; FI 902098 A 19900426; JP 50934689 A 19890818; KR 900700836 A 19900425; ZA 896509 A 19890825