Image Quality Improvement with Liquid Field Lens Scheme in 9x Zoom Lens Intermediate Optics

Abstract:

This paper proposes compensation method with liquid lens as field lens in 9x zoom lens intermediate optics. According to the droplet shape and location of liquid lens which can adjust reversibly to tune the focal length and position of the lens by changing the applied voltage on the set of electrodes and hence the liquid lens can replace more lens to reduce total length size of opto-mechanics system. In the proposed field lens scheme, we use CODE V built-in optimal method to find the best liquid lens parameter versus difference zoom of intermediate optics. There are several general optical aberrations taking into consideration. Comparing with original 9x intermediate optics without field lens technology, the maximum the spherical aberration (SA), the tangential coma (TCO), the tangential astigmatism (TAS), the transverse chromatic aberration (TCA) and the petzval surface curvature (PTZ), and modulation transfer function (MTF) improved by 42.8%, 87.5%, 92.5%, 77.8%, 9.06% and 2877%.

• Periodical: Applied Mechanics and Materials (Volumes 764-765)
• Pages: 1245-1249
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.764-765.1245
• Online since: May 2015
• Authors: Chih Ta Yen*, Ing Jr Ding, Jyun Min Shih
• Keywords: 9x Zoom Lens, Intermediate Optics, Liquid Lens, Modulation Transfer Function (MTF), Petzval Surface Curvature (PTZ)

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