Use of the Y-? diagram in GRIN rod design.
The Y-? diagram of Delano is applied to the design of gradient-index rods and is used to explain GRIN rod vignetting. Several detailed design examples are given which show how to use the diagram for GRIN rods. The Y-? diagram is a particularly useful tool to explore potential solutions involving diameter constraints and equips one with a rapid nonalgebraic investigation method.
Harrigan
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Loce
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Rogers
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