| mikyd1954 |
| how efficient is the rear fresnel at collimating light? I mean, what percentage of the light exiting(towards the LCD) the collimating fresnel is at normal (90 degrees) incidence to the LCD(not sure if I worded that right), what range does the lights incidence fall into? is it within 10 degrees? 20 degrees? and as a corollary, if your collimated light output fell within a 35 degree range(from normal incidence) how would that affect the projection? the further from normal incidence, will this blur the image? what is the useful range of incidence of light entering the lcd before it no longer will hit the triplet? sorry if I haven't phrased this right, I'll try to clarify if anyone needs it(besides me! ;) |
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