Patent ID: 7628491
Filing Date: 2009-12-08
Classification: A61B

Abstract:
1. An anomaloscope comprising a housing, a pair of arrays of horizontally disposed elongated light tubes each having a front end and a rear end, spacers between adjacent tubes to maintain them is spaced relation, guides holding the tubes in parallel one to the other with the tubes of one array being positioned in vertical alignment with the tubes of the other array so that the tubes are paired vertically with one tube of each vertical pair positioned above its associated paired tube, a translucent viewing screen positioned at the front ends of the tubes, an LED inserted into each tube, power circuitry to power the LEDs, control circuitry to control the illumination of the LEDs so that all LEDs can be lighted one of simultaneously and singularly paired, the LEDs inserted into one of the horizontal arrays producing an amber light, the LEDs inserted into the other of the horizontal arrays producing light from a bicolor light source with the color varying from one end of the other array to the other end of the other array.