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frosted decoration film
Linshang Technology's classic three-band solar film tester can be divided into two types according to the
built-in infrared light source band: 940nm and 1400nm. The other two built-in light sources are mainly 365ultraviolet LED and 380-760nm full band. White LED. Therefore, the price difference between instruments
with the same visible light and ultraviolet light sources mainly lies in the infrared. Why is the 1400nmsolar film tester more expensive than the 950nm one?
In fact it's all a matter of raw material cost. First of all, the 1400nm infrared LED light source itself is scarcer
than the 940nm light source, so the cost of the light source is much higher. In addition, the cost of the
receiver for the 1400nm infrared light source is also higher. Therefore, the 1400nm solar film tester is more
expensive than the 950nm instrument.
The solar films suitable for these two infrared light source solar film testers are also different. Thetransmittance (blocking rate) of different solar films to light sources of different wavelengths is not exactly
the same. Common heat-absorbing films mainly have a higher blocking rate for infrared rays of 940nm,
while some films with better reflective properties (such as metal films, ceramic films, etc.) have a higher
blocking rate for infrared rays of 1400nm.
Here's my website: http://www.dmiswindowfilms.com/products-frosted-decoration-film.html
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