OPTICAL ELEMENT AND HEADS-UP DISPLAY
The optical element is used as an optical screen, for example, and diffuses and outputs the laser light incident from the laser light source. The optical element includes the microlens array or the diffraction grating, and its pitches are set based on an incident numerical aperture of the laser ligh...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | The optical element is used as an optical screen, for example, and diffuses and outputs the laser light incident from the laser light source. The optical element includes the microlens array or the diffraction grating, and its pitches are set based on an incident numerical aperture of the laser light and a wavelength of the laser light such that distribution of the diffracted lights output from the optical element becomes uniform. |
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