SAMPLE HOLDER FOR ACCELERATED LIGHT FASTNESS TESTING MACHINE

摘要

PURPOSE:To easily perform an accelerated light fastness test in which the received light energy on the sample surface is intensified and the deterioration test of a specific wavelength band with one accelerated light fastness testing machine by mounting a frame to which a condenser lens and filters of various kinds of transmittance can be selectively fitted on a sample holder. CONSTITUTION:This sample holder 9 is provided with a holder base plate 10 equipped with a sample fitting jig and sample lighting opening and a filter fitting frame 12 which is equipped with a filter inserting hole 11 and firmly fixed to the base plate 10. A lens barrel 13, to which a condenser lens 14 is fixed at the optimum position in accordance with the focal distance of the lens 14, is fixed to the filter fitting frame 12. Moreover, filters 16 of various transmittance are inserted into the filter inserting hole 11 at need.