HYPERSPECTRAL IMAGING DEVICE

摘要

OF THE DISCLOSUREAn imaging device for processing light comprising a polariser defining an X-Yplane having an X-axis and a Y-axis, wherein an optical axis extends along a Z-axisperpendicular to the X-Y plane. The polariser is adapted to transmit light linearlypolarised at a polarisation angle formed in the X-Y plane. A first birefringent layerhaving an first optic axis at a first angle formed in an X-Z plane formed by the X-axisand the Z-axis, and a second birefringent layer having an second optic axis formedat a second angle. An analyzer adapted to transmit light from the secondbirefringent layer to a camera. The light so transmitted is linearly polarised at ananalyzer angle formed in the X-Y plane. The device has only two birefringent layers,and the light transmitted to the camera forms linear fringes.Fig. 2