Recent developments in finishing of deep concave, aspheric, and plano surfaces utilizing the UltraForm 5-axes computer controlled system

Bambrick, Scott; Bechtold, Mike; DeFisher, Scott; Mohring, David; Meisenzahl, Joe

doi:10.1117/12.818197

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Cited by 8 publications

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“…Recently, thanks to the progress of optical manufacturing technology, aspheric surfaces are widely used [3]. But the deep concave aspheric surfaces' application is limited, because to manufacture them special polishing tools are needed and methods are used that make it difficult.…”

Section: Introductionmentioning

confidence: 99%

Catadioptric null test of ultra-deep concave aspheric lens in wide-field optical system

Zhong

Jin

2013

Appl. Opt.

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To test the ultra-deep conic surface in wide-field optical systems, a catadioptric null test method is researched in this paper. Equations of infinite conjugate null test system are established and solved using optical path length. The numeric results of a self-aligning mirror's shapes are fitted by coefficients and validation is done in optical design software. The rms wavefront error is 0.0019λ (λ=632.8 nm) in the example fitted by five coefficients. Furthermore, by adjusting spherical aberration distributions, an all-spherical finite conjugate null test system is designed, whose rms wavefront error is 0.0309λ. The test methods in this paper have been proven to be adaptive to many other similar ultra-deep surfaces, even with higher orders.

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Section: Introductionmentioning

confidence: 99%