Adjustable hybrid diffractive/refractive achromatic lens.
Bottom Line: Inserting fluid volume through a pump system into the clear aperture region alters the membrane curvature and adjusts the refractive lens' focal position.Primary chromatic aberration is remarkably reduced through the coupling of the fluidic and diffractive lenses at selected focal lengths.Potential applications include miniature color imaging systems, medical and ophthalmic devices, or any design that utilizes variable focal length achromats.
Affiliation: College of Optical Sciences, University of Arizona Tucson, Arizona 85721, USA. firstname.lastname@example.orgShow MeSH
Related in: MedlinePlus
Mentions: The final step in producing the variable focal length achromat is the combination of the liquid crystal diffractive lens with the pressure controlled methanol fluidic lens. After adjusting the focal lengths of each lens to the appropriate values dictated by the achromat equation we measured the overall focal length of the hybrid lens at the red, green, and blue wavelengths. The experiment verified that the focus spots of the red and blue wavelengths coincided very closely. Figure 5(a)Fig. 5
Affiliation: College of Optical Sciences, University of Arizona Tucson, Arizona 85721, USA. email@example.com