| 摘要 |
The present invention provides an optical member having excellent anti-reflection properties, capable of being produced inexpensively as compared with conventional optical members having anti-reflection properties and of being mass-produced with quality kept constant. An optical member 1 has a plane of incidence 3 and a plane of emergence 5 . The plane of emergence 5 has, as an optical element, prisms 2 by which the optical path of incident light (see symbol X) is changed. The plane of incidence 3 has a plurality of minute concavities 4 (see FIG. 2 ) by which reflection of incident light is prevented.
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