Optical device and optical detection device
An optical element includes a first surface and a second surface opposite to the first surface, and includes a first region. A refractive index of the first region is asymmetric with respect to a first axis. The first axis passes through a first position and is parallel to a first thickness directio...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | An optical element includes a first surface and a second surface opposite to the first surface, and includes a first region. A refractive index of the first region is asymmetric with respect to a first axis. The first axis passes through a first position and is parallel to a first thickness direction. The first refractive index is highest or lowest at the first position in the first region. The first thickness direction is from the first surface toward the second surface in the first region. |
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