Color line scan video camera for inspection system
AssigneeSimco/Ramic Corporation
InventorsJack C. Heffington, H. Parks Squyres
Life of this patent
Estimating the term…
Abstract
A color line scan video camera (50) for inspecting articles (18) includes a prismatic beam splitter arrangement (52) that receives a wide spectrum of visible light from a variable magnification objective lens arrangement (54) to provide improved multi-color inspection capability. The prismatic beam splitter separates the light received from the scanned articles into three preselected spectral bands of light, each of which is imaged upon a different charge-coupled device line scan sensor that generates a corresponding color component video signal. The light transmission characteristics of the lens are "color-corrected" to transmit uniformly the light received from the scanned articles.
Claims7
A method for positioning and aligning a first photodetector array relative to a first exit surface of a prismatic beam splitter of a color inspection camera, comprising the steps of:
- directing light from an alignment target through the prismatic beam splitter to the first exit surface;
- positioning with a micrometric manipulator the first photodetector array adjacent to the first exit surface of the prismatic beam splitter;
- aligning the first photodetector array with an electromechanical manipulator coupled to the micrometric manipulator such that the alignment target is received by predetermined photodetectors in the first photodetector array, the electromechanical manipulator providing a finer degree of manipulation than the micrometric manipulator;
- and
- bonding the first photodetector array to the first exit surface of the prismatic beam splitter.
Dependencies are inferred from the claim text.