Computer Generated Hologram; Null Lens Test of Aspheric Wavefronts

Degnan, John J.; Klein, Bernard

doi:10.1364/ao.13.2762_1

Cited by 30 publications

(16 citation statements)

References 6 publications

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“…So the maximum slope of encoded wave-front is lower than that of conventional null-test methods [6][7][8] . This makes the HOEs fabrication easier.…”

Section: Feasibility Of Hoesmentioning

confidence: 87%

A novel method of measuring convex aspheric lens using Hologram Optical Elements

Wang

Xie

et al. 2006

SPIE Proceedings

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In order to simplify the complexity and improve the accuracy of convex aspheric lens testing, a novel method is proposed in this paper. In this method, convex aspheric lens is tested in transmitted light at the design wavelength by means of a Mach-Zehnder interferometer. Lens under test and its collimating lens are situated in one arm of Mach-Zehnder interferometer, Hologram Optical Elements (HOEs) acting as the compensator is placed in the proper position in another arm of interferometer. The principle of this setup is analyzed. The design and manufacture of HOEs and spatial filter used in this method are described in detail. In comparison with other methods, the advantages using this method are: (1) complex compensation lenses are not required any more, which simplifies the compensating structure and decreases the costs of measurement, (2) HOEs is easier to be fabricated. A convex-plane aspheric lens as an example is experimented.

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“…So the maximum slope of encoded wave-front is lower than that of conventional null-test methods [6][7][8] . This makes the HOEs fabrication easier.…”

Section: Feasibility Of Hoesmentioning

confidence: 87%

A novel method of measuring convex aspheric lens using Hologram Optical Elements

Wang

Xie

et al. 2006

SPIE Proceedings

View full text Add to dashboard Cite

show abstract

“…The advantages of aspheric lens lie in their capability to improve the image quality and compact the optical system. Various techniques have been developed for aspheric testing [1][2][3][4]. The interferometric measurement as a populartechniquehas a big challenge to test the aspheric surface with large deviation from the best-fit-sphere.…”

Section: Introductionmentioning

confidence: 99%

Further investigations of stitching model for annular subaperture interferometric testing based on Zernike annular polynomials

Wen

Cheng

2015

Optik - International Journal for Light and Electron Optics

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“…However, this often requires not only the convex aspheric with homogeneity of materials but also expensive null optics. Recent studies showed that null lenses could be replaced with computer-generated holograms (CGHs) [3,4]. Since the CGH is nothing more than a ruling pattern, its errors take the form of spatial distortion in that pattern.…”

Section: Introductionmentioning

confidence: 99%

Using diffractive optical element and Zygo interferometer to test large-aperture convex surface

Lü

2005

Optics & Laser Technology

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Computer Generated Hologram; Null Lens Test of Aspheric Wavefronts

Cited by 30 publications

References 6 publications

A novel method of measuring convex aspheric lens using Hologram Optical Elements

A novel method of measuring convex aspheric lens using Hologram Optical Elements

Further investigations of stitching model for annular subaperture interferometric testing based on Zernike annular polynomials

Using diffractive optical element and Zygo interferometer to test large-aperture convex surface

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