Measurement of focal length of a lens with holographic grating and thin beam

Guilin Sun; Xiaoxing Zhang

doi:10.1117/12.274435

15 May 1997 Measurement of focal length of a lens with holographic grating and thin beam

Guilin Sun, Xiaoxing Zhang

Proceedings Volume 3010, Diffractive and Holographic Device Technologies and Applications IV; (1997) https://doi.org/10.1117/12.274435
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

A new versatile method to measure the focal length of conventional imaging lens, Fourier transform objective and linear scanning objective using laser as light source is reported, which uses a holographic grating and thin laser beam, and the measurement accuracy is analyzed and relative issues are discussed in the paper. The method has the advantages of versatility, high measurement accuracy, no complex auxiliary needed and easy adjustment. In addition, the spherical aberration of the lens undertest can also be obtained from the same set of testing data by some transformation and processing.

Citation Download Citation

Guilin Sun and Xiaoxing Zhang "Measurement of focal length of a lens with holographic grating and thin beam", Proc. SPIE 3010, Diffractive and Holographic Device Technologies and Applications IV, (15 May 1997); https://doi.org/10.1117/12.274435

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