| 摘要 |
A high contrast light pattern projection mechanism includes a first reflecting body and a second reflecting body installed at upper and lower portions of an open end of a reflecting cavity respectively. If a light bulb module in the reflecting cavity emits a light source, a large-angle light and a small-angle light of the light source will be reflected from the first reflecting surface in the reflecting cavity and the second and third reflecting surfaces of the reflecting bodies respectively, such that the large-angle light and the small-angle light form a high contrast light pattern to be emitted to the outside, so as to enhance both contrast and illumination efficiency of the projection mechanism.
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