Optical characterization of electro-optics lenses for researching in optics

Marín, Jennyfer Morales; Torres-Sepúlveda, Walter; Henao, Julián; Mira-Agudelo, Alejandro; Rueda, Édgar

doi:10.1117/12.2568577

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The optical axis is oriented vertically to reduce the effects of the gravity induced coma often observed with MLs. 36,37 Figure 14 shows the resulting image for the hybrid element of design 1, at a focal length of the ML of 128 mm and an aperture diameter of 16 mm, compared with the ML alone with the same parameters. The color fringes in the image taken with the ML alone demonstrate that the correction of the axial color by the ALL works.…”

Section: Qualitative Evaluation Via United States Air Force Test Char...mentioning

confidence: 99%

Diffractive Alvarez-Lohmann lenses for correcting aberrations of tunable membrane lenses

Lenk

Sinzinger

2023

Opt. Eng.

View full text Add to dashboard Cite

Focus-tunable lenses, e.g., liquid filled membrane lenses (MLs), have found increasingly widespread application in optical systems. If a large refractive power range is to be used, the correction of chromatic aberrations is particularly challenging: a group containing a single ML cannot be corrected over the whole refractive power range. In analogy to hybrid achromats for lenses with constant focal lengths, we present the combination of an ML and a diffractive Alvarez-Lohmann-lens (ALL) for the compensation of axial color over a large refractive power range. In contrast to the combination of multiple MLs, this does not increase the axial length of the system significantly. At the same time, the flexible adaption of the phase function of the diffractive ALL can reduce spherical aberration over the whole focal range. Design examples with ray-tracing and wave-optical simulations demonstrate the performance of the resulting hybrid tunable element. Experimental data from fabricated sample lenses provide a proof of principle.

show abstract

Section: Qualitative Evaluation Via United States Air Force Test Char...mentioning

confidence: 99%