Optics: image projectors – Light shield – mask – hood – or diaphragm
Reexamination Certificate
2006-09-05
2006-09-05
Perkey, W. B. (Department: 2851)
Optics: image projectors
Light shield, mask, hood, or diaphragm
C353S094000, C353S033000, C353S034000, C362S227000, C362S551000
Reexamination Certificate
active
07101050
ABSTRACT:
Illumination systems are disclosed that include a light source or a bank of light sources having a non-radially symmetrical aperture having a longer dimension and a shorter dimension, such that the light source or bank of light sources produces illumination with a non-radially symmetrical angular intensity distribution having a larger angular dimension and a smaller angular dimension. The illumination systems include an integrator having an entrance end optically connected to the bank of light sources, an exit end, and a dimension that experiences a larger increase from the entrance end to the exit end. The integrator is disposed so that the dimension experiencing the larger increase is substantially aligned with the larger angular dimension of the illumination produced at the entrance end of the integrator.
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