Optical assembly

Abstract

The present application provides an optical assembly, comprising a first lens located in a light emitting direction of a light source, and configured to deflect incident light when the light passes through the first lens. The first lens comprises a first optical surface configured for light incidence and a second optical surface configured for light exiting; the first optical surface is configured as a microlens array, the second optical surface is configured as a polarizing prism array, and each polarizing prism comprises a polarizing surface extending in a transverse axis direction; in a longitudinal section perpendicular to the transverse axis direction, the sectional profile of the first optical surface is formed by sequentially connecting a plurality of microlenses, and each microlens has a convex curved surface; for a collimated or nearly collimated light beam incident on the first lens, in the longitudinal section, a first incident light ray and a second incident light ray are defined to be incident from two ends of the sectional profile of a microlens, respectively, and the first lens is configured such that a first emergent light ray and a second emergent light ray intersect outside the second optical surface. The optical assembly of the present application can achieve both deflection of emergent light and uniform distribution of light.

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