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: A syringe is placed into a pump system that alters the fluid output, permitting for control of the fluidic lens’ radius of curvature and focal length. The applied pump controllers operate at a maximum of 0.0125 ml / sec, an operation rate of 50 µl in 4 seconds. This corresponds to a focal shift of approximately 10 mm per 50 µl evacuation when there is high lens curvature, and a shift of approximately 50 to 100 mm per 50 µl evacuation. The boundary between high curvature and low curvature varies with the designed focal length. With our fluidic chamber, which was designed for an 80 mm base focal length with methanol, an evacuation of 150 µl defines our barrier between low curvature and high curvature. It is observed in Fig. 4Fig. 4
Affiliation: College of Optical Sciences, University of Arizona Tucson, Arizona 85721, USA. email@example.com