A sawing inspection system to measure dimensions of a cant that has been cut into pieces is disclosed. The system includes a housing having a window, an image sensor, a first mirror, and a second mirror. The first mirror includes a concave parabolic reflective surface and a focal point, and the second mirror includes a flat, reflective surface. The focal point is where parallel rays of light that enter the housing through the window and reflect off of the concave parabolic reflective surface intersect. The second mirror is positioned to reflect toward the focal point the parallel rays of light reflected by the first mirror. The image sensor is located at the focal point. At least one of the first mirror, the second mirror, and the image sensor is movable relative to the others to remove parallax error from the measurement of the pieces of the cant.
B27B 3/18 - Controlling equipment, e.g. for controlling the drive
B27B 31/06 - Adjusting equipment, e.g. using optical projection
G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements
B23Q 17/20 - Arrangements for indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
G01N 21/00 - Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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