National Science Council

Yao A Fu

Yin Chang

A four-channel anomaloscope for detecting the color sense match of the blue cone function and the color weakness or blindness in red and green comprising a housing, optical elements, circuit control means, appropriate computer facilities and software programs wherein the optical elements comprise lighting bulbs, single wavelength interference type filters, 50/50 spectroscopes, a reflective mirror, and photodiodes. The present invention further relates to a method of making the brightnesses of both partitions of the bipartite field produced in the four-channel anomaloscope to coincide with each other.

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Taipei, Taiwan

Yao A Fu