Paper
15 May 1997 Measurement of focal length of a lens with holographic grating and thin beam
Guilin Sun, Xiaoxing Zhang
Author Affiliations +
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.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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KEYWORDS
Holography

Monochromatic aberrations

Objectives

Diffraction

Diffraction gratings

Fourier transforms

Light sources

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