Dodging lens for micro projection
A uniform light lens and micro-projection technology, applied in the field of projection, can solve the problems of inability to flexibly change, difficult to manufacture, and high manufacturing cost, and achieve the effects of low processing difficulty, low manufacturing cost, and large space for refractive index selection.
Pending Publication Date: 2020-05-19
SHENZHEN EVIEWTEK TECH CO LTD
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Problems solved by technology
The more the number of microlenses, the better the uniform light effect, but the refractive index of the microlenses made of resin materials is often limited to the choice of materials and cannot be changed flexibly. Moreover, when the number of microlenses is large, the manufacturing difficulty and cost are also higher. Big
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[0033] The following will clearly and completely describe the technical solutions of the embodiments of the present application with reference to the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present application.
[0034] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer " and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the descr...
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Abstract
The invention discloses a dodging lens for micro projection. The dodging lens comprises a first base material layer, a second base material layer, a first electrode layer, a second electrode layer anda liquid crystal material layer, wherein the liquid crystal material layer consists of a plurality of liquid crystal material units which are used for equivalent micro lens units in a fly-eye lens one by one; the first base material layer is arranged on the second base material layer in a stacked mode, and a first electrode layer is laid on the face, opposite to the second base material layer, ofthe first base material layer; a second electrode layer is laid on the face, opposite to the first base material layer, of the second base material layer. The liquid crystal material layer is packaged between the first electrode layer and the second electrode layer. Compared with a traditional micro lens prepared from a resin material, the micro lens is not limited to low-refractive-index material selection, and the refractive index selection space is large; and the processing difficulty is low, and the manufacturing cost is low.
Description
technical field [0001] The present application relates to the field of projection technology, in particular to a uniform light lens for miniature projection. Background technique [0002] With the maturity of technology, projection equipment is used in more and more fields, such as home audio-visual, advertising projection, industrial projection inspection, etc. Among them, the demand for small-sized, high-brightness, and high-resolution projectors is also becoming stronger. [0003] The research on micro-projectors has also been paid more and more attention. The final imaging effect of projection is not only closely related to the imaging lens, but also closely related to the lighting system. The lighting system of the micro-projector determines the upper limit of the uniformity of illumination of the projection system after projection, and the uniform light element of the lighting system is mainly a fly-eye lens. Fly eyes Lens (Fly eyes Lens) is mainly made of resin mate...
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IPC IPC(8): G02F1/1333G02F1/1343G03B21/20
CPCG02F1/1333G02F1/1343G02F1/13439G03B21/208
Inventor 魏威王作红姜玥伊贺银波
Owner SHENZHEN EVIEWTEK TECH CO LTD