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  OSD Optics
Lesson 10
Tolerance calculations

SYNOPSYS has several tolerancing features.
The most powerful of these is BTOL, which can control the change in geometric spot size, wavefront variance, Strehl ratio, or MTF, while accounting for adjustments to be made at assembly or later refocusing.

The next pages show how to use BTOL (Budget TOLerance) to get a budget that controls the wavefront variance.
Click to go to Lesson 11.
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