[PDF] Top 20 An electrically tunable-focusing liquid crystal lens with a low voltage and simple electrodes

... demonstrated an electrically tunable focusing LC lens with low driving voltages and a simple electrode without any hole-patterned ...operating ... See full document

... Electrically tunable focusing liquid crystal 共LC兲 lens is important in cell phones, cameras, picoprojectors, and the night vision of hand-carried ...are low cost, ... See full document

... projection lens, the focal length in the LCOS- or DLP-based pico-projectors is manually ...lenses and the manual switching device. There- fore, in order to obtain a pico-projector with reduced ... See full document

... coated with mechanically buffered PVA (Polyvinylalcohol) to align the LC molecules, a LC layer and a LCPCF ...etched with a hole-pattern within a diameter of ...provide ... See full document

... Structure and Operating Principles Figure 1 illustrates the structure of the electrically tunable pico projector using a LC lens as an active optical ...from a ... See full document

... adopting a LC ...LC lens with a diameter of D LC and the imaging lens with a diameter of D s ...pupil with a diameter of D s ’ is the image of the ... See full document

... system with an electrically tunable lens has not been discussed ...the electrically tunable focusing liquid crystal (LC) lenses based on changing the ... See full document

... The electrically tunable focal length of LC lenses results from the gradient distribution of refractive indices due to the orientations of LC ...of a polarizer of LC lenses results in a ... See full document

... observation with a CMOS sensor; Images of the near object shot by a CMOS sensor with this proposed LC lens (b) not activated and (c) ...Conclusion An LC lens ... See full document

... demonstrated an electrically tunable lens coupler for both variable optical attenuation (VOA) and polarization ...of a liquid crystal (LC) lens sandwiched ... See full document

... through a cornea, a crystalline lens and retina of a human eye to form an ...Myopia and hypermetropia mainly result from anomaly of the length of eyes or anomaly of ... See full document

... Conclusion A novel hole-and-ring electrode of LC lens with large aperture (>4 mm) is designed for improving the focusing quality with low applied ...LC lens is ... See full document

... time and the scattering when the variation of the thickness is ...indices with a uniform thickness of a LC layer and the spatial phase difference is (r) = 2π/ [λ × δn(r) × ...index ... See full document

... applied an AC voltage of V 2 . In such a system, when the same voltage is applied to both the homogeneous and the hole- patterned electrodes ...LC lens are more ... See full document

... Keywords: Liquid crystal lens; Electrically tunable zoom lens; Focusing function; Zooming function ...INTRODUCTION An electrically tunable optical ... See full document

... lenses and a voice coil motor(VCM) to control the relative distance of ...is focusing group for focus function which means the image is adjusted in focus or out of ...function and zoom ... See full document

... of tunable focusing properties without mechanical moving ...49,71 and the 2D/3D switching ...LC lens between a positive and a negative LC lens in a imaging ... See full document

... Abstract: An electrically tunable-focusing optical zoom system using two composite LC lenses with a large zoom ratio is ...the electrically tunable focusing ... See full document

... LC lens are shown in Fig. 6. There is a distinct change in pattern when V L voltage ...the focusing position extracted from the figures in ...constant and V L is varied in ...electrode ... See full document

... LC lens was applied two voltages, as shown in Fig. 1. When and , both of the LC lenses are positive lenses which means the focal lengths are ...When and , the LC lenses are negative lenses which ... See full document