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How to test the projector’s lumens?
How to test the projector’s lumens?
- We test the Brightness Parameters of the Projector according to ANSI Standards.
- First we will introduce the word "ANSI". ANSI is short words of "American National Standards Institute", founded in 1918.
- American National Standards Institute's standards, the vast majority from the professional standards. On the other hand, professional associations, associations can also be based on existing national standards to develop certain product standards. ANSI standards are voluntary.
- We will give you the two different result: American and Chinese Standards. They have the same test way. The difference is that the Chinese standard result are more than four times that of American.
Picture | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Average |
White | 1325 | 1477 | 1436 | 1354 | 1692 | 1626 | 1043 | 1309 | 1347 | 1401 |
Black | 232 | 242 | 221 | / | / | / | 213 | 243 | 231 | 230 |
Picture | White | Black |
1 | 1325 | 232 |
2 | 1477 | 242 |
3 | 1436 | 221 |
4 | 1354 | / |
5 | 1692 | / |
6 | 1626 | / |
7 | 1043 | 213 |
8 | 1309 | 243 |
9 | 1347 | 231 |
Average | 1401 | 230 |
After continuous working 2 hours. The projector's temperature will be higher. And the fan will work harder than beginning. It will make a louder noise. So we give the noise and temperature result after 2 hours continuous working. For NIERBO CH4000 projector, it is built in Osram LED lamp, so the noise and temperature will not be big difference than beginning. The noise is 48.0 dB, the temperature is 34.0 ℃.