Apparatus and a method for combining light beams by using two fl

Details Apparatus and a method for combining light beams by using two fl Apparatus and a method for combining light beams by using two fl

1998-06-04

2000-08-08

Ben, Loha

Optical: systems and elements

Single channel simultaneously to or from plural channels

359627, 359629, 359583, 359589, 359722, G02B 2710

Patent

active

061010375

ABSTRACT:
A light combining apparatus using two flat plates combines three separate light beams having blue, green and red wavelengths to a single combined light beam for a light source by an easier and simple small-sized device and makes the combined light beam smoothly enter the place for implementing the final information. The apparatus includes a reflection mirror for reflecting light beams with all of the wavelengths, at least one filter for transmitting only at least one light beam with a specific wavelength and reflecting light beams with the other wavelengths, and a medium located between the reflection mirror and the filter, through which the incident light beams and the reflected light beams pass, wherein the three light beams are combined into a single light beam within the medium which single light beam then exits the apparatus. A method of combining separate light beams having different wavelengths is also disclosed.

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