Camera unit for sheet surface flaw detection apparatus

H - Electricity – 04 – N

Patent

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Details

H04N 3/15 (2006.01)

Patent

CA 2059054

-21- Abstract of the Disclosure The principal structure of a camera unit housing is formed of one material of copper, a copper alloy, aluminum, and an aluminum alloy by the extrusion method or the drawing method. In this housing, a plurality of cameras are stored in an array. Each camera includes a charge coupled device (CCD) linear array image sensor and an optical system for forming an image on the CCD linear image sensor. Windows are formed in the housing at positions opposing the CCD linear array image sensors to sandwich the optical systems therebetween, and trans- parent window glasses are fitted in the windows. A minimum camera mounting pitch is almost equal to an integrated circuit (IC) package length of the CCD linear array image sensors. Independent cooling fluid flow paths for flowing a cooling medium therethrough are arranged on the inner and outer surfaces of the housing. A bus line for supplying a power supply voltage and a start signal to the cameras is mounted to be in tight contact with the inner surface of the housing.

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