24 June 2014 Determination of the focal length of microlens array by spherical wavefronts
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Abstract
We propose an experimental method consisting of a standard Fizeau interferometer with transmission sphere (TS) for the determination of the focal length of microlens array (MLA) by spherical wavefronts. The TS is axially translated to produce a spherical wavefront of different curvatures with respect to the MLA. The align mode provision of the interferometer helps to monitor the tilt of the MLA with respect to the spherical wavefront. The focal length is determined from the measured distance of adjacent image spots for various spherical wavefronts at the focal plane of the MLA. Error analysis and experimental demonstration with an off-the-shelf MLA are addressed here.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Marimuthu Senthil Kumar, Marimuthu Senthil Kumar, Rahul Sharma, Rahul Sharma, Chittur Subramanian Narayanamurthy, Chittur Subramanian Narayanamurthy, Alur Seelin Kiran Kumar, Alur Seelin Kiran Kumar, } "Determination of the focal length of microlens array by spherical wavefronts," Optical Engineering 53(6), 064102 (24 June 2014). https://doi.org/10.1117/1.OE.53.6.064102 . Submission:
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