WIDE OPEN WIDE-ANGLE LENS
The invention relates to a wide open wide-angle lens for digital image acquisition, comprising five lenses, that is, as seen looking from the object side, which is from the left, a first negative meniscus lens (112), a second positive lens (118), a third positive lens (126), a fourth negative lens (...
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| Format: | Patent |
| Sprache: | eng ; fre |
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| Zusammenfassung: | The invention relates to a wide open wide-angle lens for digital image acquisition, comprising five lenses, that is, as seen looking from the object side, which is from the left, a first negative meniscus lens (112), a second positive lens (118), a third positive lens (126), a fourth negative lens (130), and a fifth positive meniscus lens. A diaphragm (122) is disposed between the second lens (118) and the third lens (126). At least three surface areas in front of the diaphragm and three surface areas behind the diaphragm are designed as aspherical surfaces. However, additional surfaces can also have an aspherical design. Given the extremely compact design and the outstanding optical properties, the proposed wide open wide-angle lens is suitable as an interchangeable lens for hybrid cameras. |
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