The particular lighting system to have with the fluorescent lamp and the broadband cholesteric polarizer which has the formation of the high polymer materials which

摘要

(57) Abstract This applied example regards the lighting system which possesses with the fluorescent lamp and the broadband cholesteric polarizer. This kind of polarizer includes the high polymer materials which possess cholesteric array, this material is arrayed in order the axis of numerator spiral to extend perpendicularly vis-a-vis particular formation. As for broadband property of this polarizer, it is obtained by augmenting to the maximum from the minimum in pitch of numerator spiral the 1st aspect of cholesteric formation in the 2nd aspect of particular formation. According to this invention, the polarizer is laid out inside the particular lighting system that cholesteric formation directs the 1st aspect to the fluorescent lamp. Furthermore, the product p of maximum p of pitch in cholesteric formation _max and abnormal index of refraction n _{e max} n _e must be the range with 0.61 micron and 0.76 microns. With these means, the extent which is surprised only the visual angle dependancy of small luminous intensity or color it possesses the particular lighting system. This applied example, furthermore, as description above regards also the display which possesses the linear polarizer and this kind of linear polarizer which are used for the lighting system.