Application of OTF instrument in the fabrication and assembling of aspheric lens

Xiaoxiao Wei; Jianjun Yu

doi:10.1117/12.806518

2 February 2009 Application of OTF instrument in the fabrication and assembling of aspheric lens

Xiaoxiao Wei, Jianjun Yu

Proceedings Volume 7160, 2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications; 71600E (2009) https://doi.org/10.1117/12.806518
Event: International Conference of Optical Instrument and Technology, 2008, Beijing, China

Abstract

OTF reflects the frequency characteristic of optical system and is the key parameter that evaluates the imaging quality of aerospace optical lens. The aspherics make the optical system simplified in structure with the imaging quality assured at the mean time, however the assembling technology of aspheric optical system is restricted because the fabrication technology is difficult and a lack of testing means. In this paper, means of OTF testing is adopted and a testing frock clamp is designed and processed to test the OTF of aspherics during its fabrication, and the result of test is used to supervise the fabrication until meet its target. During the assembling of the aspheric lens, the source of aberration that affects the imaging, which is used to supervise the next assembling, is analyzed according to the test result of OTF instrument, and test the OTF of re-assembling aspheric lens another time to see whether the result is meet the request, then the assembling will be accomplished. The result of experiment shows that it is feasible to supervise the fabrication and assembling of aspheric optical system by OTF instrument.

Citation Download Citation

Xiaoxiao Wei and Jianjun Yu "Application of OTF instrument in the fabrication and assembling of aspheric lens", Proc. SPIE 7160, 2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, 71600E (2 February 2009); https://doi.org/10.1117/12.806518

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KEYWORDS

Aspheric lenses

Optical transfer functions

Optical fabrication

Diamond turning

Modulation transfer functions

Imaging systems

Optical fabrication equipment

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