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With the purpose of programming grating period and grating direction, according to the optical designed above, the value of grating direction θ g and grating period Λ are determined by {theta}_g=frac{alpha_B+{alpha}_A}{2}hbox frac{pi }{2} (1) frac{lambda _B}{2varLambda }= sin left(frac{alpha_B-{alpha}_A}{2}right) (2}right
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The optics used in our system are shown in Fig. 2. The optical design of the laser illumination is based on that described in [ 16].
This makes the SIO an optically simple device that does not rely on mechanical scanning devices and the optical design trade-offs required for scanning systems.
Perhaps more important, however, is its optical design.
His father is retired as a director of optical design at both PerkinElmer, the instrument maker in Wilton, Conn., and Silicon Valley Group, a computer chip company in Wilton.
The field of view is then about 40° total, a convenient value for a relatively simple optical design.
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