Lens
The invention discloses a lens. The lens comprises a first battery of lenses, a second battery of lenses and an imaging plane which are successively arranged from the object side to the image side; the batteries of lenses meet the following conditions that |f1/f system| is greater than 2.5 and less...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a lens. The lens comprises a first battery of lenses, a second battery of lenses and an imaging plane which are successively arranged from the object side to the image side; the batteries of lenses meet the following conditions that |f1/f system| is greater than 2.5 and less than 3.2; and (TTL-D)/f system is greater than 2.3 and less than 2.8, wherein f1 is the focal lengthof the first battery of lenses, f system is the system focal length of the lens, TTL is the total length of the lens, D is the distance between the second battery of lenses and the imaging plane. According to the lens, the two batteries of lenses are successively arranged in the lens in a certain sequence from the object side to the image side, and the batteries of lenses in the lens meet the conditions that |f1/f system| is greater than 2.5 and less than 3.2; (TTL-D)/f system is greater than 2.3 and less than 2.8, and the requirement for identifying license plate information through images and the requirement for a |
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