monolithic lenslet module

Definition: Array of microlenses used e.g. over CCD arrays in digital cameras to improve light-gathering efficiency. * The lenses may be round, square or hexagonal in shape, and 205m or less in diameter. * Used also in photronics with lasers and testing. A wider view on field lenses The lenslet module is a vital component of consumer digital cameras which use a less-than-ideally efficiency form of CCD: the module greatly increases light-gathering efficiency. They are in fact field lenses. But there is a cost: because their acceptance angle is limited highly wide-angle lenses produce unacceptably rapid light fall-off in the image periphery.

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