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- W2374519333 abstract "At the end stage of the grinding process of the reflection mirror,the shape of the surface has large difference between the target shape.Especially when the mirror has a steep aspheric surface,interferometer may not be possible and contact profilometer is not correct any more.The Hartmann test has an advantage in that it has a larger dynamic range than interferometer.It means that the mirror can be tested with a Hartmann wavefront sensor without null compensator,so a new method using Shack-Hartmann wavefront sensor to nonnull test off-axis aspheric surface on axis is presented.Using a simulation reference file,testing an off-axis aspheric reflection mirror is carried out.This mirror is also tested by using contact profilometer and interferometer.Comparing the three testing results,the Shack-Hartmann testing is not only more accuracy than profilometer testing,but also larger dynamic range than interferometer testing.It also shows that the theory of testing system and separation of errors are correct." @default.
- W2374519333 created "2016-06-24" @default.
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- W2374519333 date "2012-01-01" @default.
- W2374519333 modified "2023-09-24" @default.
- W2374519333 title "Shack-Hartmann wavefront sensor nonnull testing off-axis aspheric surface on axis" @default.
- W2374519333 hasPublicationYear "2012" @default.
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