System and method for illuminating a target

Optical: systems and elements – Lens – With viewed object or viewed field illumination

Reexamination Certificate

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C359S651000

Reexamination Certificate

active

07869145

ABSTRACT:
According to one embodiment of the present invention, a system for illuminating a target includes a light source configured to emit one or more light beams with a first divergence. The system further includes a lens separated from the light source. The lens is configured to substantially satisfy the sine condition without removing spherical aberrations from the one or more light beams. The lens is further configured to receive the one or more light beams with the first divergence. The lens is further configured to change the first divergence of the one or more light beams to a second divergence. The second divergence is less than the first divergence. The second divergence is greater than zero. The lens is further configured to transmit the one or more light beams with the second divergence.

REFERENCES:
patent: 2637242 (1953-05-01), Osterberg et al.
patent: 2007/0152231 (2007-07-01), Destain

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