METHOD FOR DETECTING IMAGE IN IMAGE DETECTOR HAVING EDGE MILLED APERTURE TO REMOVE DIFFRACTION PATTERN

摘要

The present invention relates to an image detecting method of an image detector which processes a shape of an edge of an image input aperture of a 2D image detector which is used in a terahertz band whose frequency is lower than that of infrared light to have a predetermined shape so that a diffraction pattern due to the aperture is not shown in a captured image or a contrast is weakened, thereby obtaining a clear object image with a reduced distortion.

主权项

1. An apparatus for detecting an image by passing an electromagnetic wave, the apparatus comprising:
an aperture having a predetermined shape to pass an electromagnetic wave, wherein the aperture is milled such that a transmittance is reduced from an end of an edge of the aperture to a material surface.