OBSERVATION OPTICAL SYSTEM AND IMAGE DISPLAY APPARATUS HAVING THE SAME
An observation optical system is configured to observe an image displayed on an image display plane and includes a negative lens and a positive lens. At least one of the negative lens and the positive lens has a lens surface having a Fresnel shape. A predetermined condition is satisfied.
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | An observation optical system is configured to observe an image displayed on an image display plane and includes a negative lens and a positive lens. At least one of the negative lens and the positive lens has a lens surface having a Fresnel shape. A predetermined condition is satisfied. |
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