The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1999
Filed:
Jun. 08, 1998
Applicant:
Inventors:
Ming Tsung Cheng, Taipei Hsien, TW;
Jih-Yung Lu, Taipei Hsien, TW;
Assignee:
Acer Pheripherals, Inc., , TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
3561245 ;
Abstract
A lens module testing apparatus includes a light source, a grating reflects the light emitting from the light source to form a object light locating at a object location, an adjustable holding device holds a lens module between the object location and a image location, adjusting the holding device to position the lens module to form a testing image of the object light at the image location. A CCD is located at the image location to receive the intensity of the testing image and then generate an electrical signal. A PC analyzes the electrical signal.