| 摘要 |
A light source or lamphouse wherein light from lamps 16 of different colors, as obtained by filters 18, is projected into a full diffusing chamber 20 with diffusing reflective internal surfaces where the light is premixed. The diffusing chamber is disposed adjacent to a specular dispersing chamber 22 of greater volume than the diffusing chamber where the light is further mixed and dispersed to provide uniform illumination at an outlet; the use of both types of chambers providing efficient mixing in a limited volume so that the source can be movably mounted on the column of an enlarger or printer.
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