Light deflection liquid crystal element, projection display, and jitter correction camera device

Abstract

The invention provides a light deflection liquid crystal element, a projection display, and a jitter correction camera device. The light deflection liquid crystal element includes a first light deflection liquid crystal element and a second light deflection liquid crystal element. The first / second light deflection liquid crystal element includes a first / second liquid layer, a first and a second / third and a fourth transparent base plate, a first and second / third and fourth transparent electrode, and a first / second prism layer. The first / second liquid layer includes liquid crystal molecules which have a positive anisotropy dielectric constant and have the cholesteric blue phase without the voltage application. The first and the second / third and the fourth transparent base plate are arranged opposite to one another and clamp the first / second liquid crystal layer. The first and the second / third and the fourth transparent electrode are arranged on the first / second liquid crystal layer of the first and the second / third and the fourth transparent base plate and apply voltage to the first / second liquid layer. The first / second prism layer is arranged on the first / second liquid crystal layer of the first / third transparent electrode or the first / third transparent base plate, and includes a first / second triangular prism which extends to the first / third transparent base plate. The first and second light deflection liquid crystal elements have the same optical axis. The first and second triangular prisms are intersected.

Description

Technical field [0001] The present invention relates to a light-deflecting liquid crystal element that changes the traveling direction of light, a projection display using the light-deflecting liquid crystal element, and a shake correction imaging device. Background technique [0002] In order to prevent the failure of photo taking caused by hand-shake, cameras with hand-shake correction functions have been developed. Hand-shake correction methods are roughly divided into the following methods: a universal joint mechanical method that adjusts the position of a lens system (e.g., Japanese Patent Laid-Open No. 2002-131797), and an effective prism method that adjusts the optical axis by changing the vertex angle of a prism (e.g. Japanese Patent Laid-Open No. 05-134285), or a CCD movement method that moves the position of the imaging element in conjunction with the optical axis (e.g., Japanese Patent Laid-Open No. 2004-048346), and other optical hand-shake correction methods, and the...

AI Technical Summary

Problems solved by technology

However, in the technique disclosed in Japanese Patent Laid-Open No. 2006-147377, only one polarized light component out of two perpendicular polarized light components is deflected, and deflected only in a predetermined one direction

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