Zoom lens
The utility model discloses a zoom lens, the zoom lens sequentially comprises a first lens group, a second lens group, a third lens group, a fourth lens group and a fifth lens group from an object side to an image side along an optical axis, the first lens group is a fixed group with positive focal...
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| creator | ZHAI LINYAN BAI XING'AN LIANG WEICHAO YING YONGMAO |
| description | The utility model discloses a zoom lens, the zoom lens sequentially comprises a first lens group, a second lens group, a third lens group, a fourth lens group and a fifth lens group from an object side to an image side along an optical axis, the first lens group is a fixed group with positive focal power; the second lens group is a zoom group with negative focal power; the third lens group is a fixed group with positive focal power and comprises an eighth lens and a ninth lens which are sequentially arranged from the object side to the image side along the optical axis; the fourth lens group is a focusing group with positive focal power; the fifth lens group is a fixed group with positive focal power and comprises a thirteenth lens and a fourteenth lens which are sequentially arranged from the object side to the image side along the optical axis; and the curvature radiuses R24 and R25 of the object side surface and the image side surface of the fourteenth lens meet the condition that (R24 + R25)/(R24-R25) is |
| format | Patent |
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the second lens group is a zoom group with negative focal power; the third lens group is a fixed group with positive focal power and comprises an eighth lens and a ninth lens which are sequentially arranged from the object side to the image side along the optical axis; the fourth lens group is a focusing group with positive focal power; the fifth lens group is a fixed group with positive focal power and comprises a thirteenth lens and a fourteenth lens which are sequentially arranged from the object side to the image side along the optical axis; and the curvature radiuses R24 and R25 of the object side surface and the image side surface of the fourteenth lens meet the condition that (R24 + R25)/(R24-R25) is</description><language>chi ; eng</language><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240514&DB=EPODOC&CC=CN&NR=220961986U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240514&DB=EPODOC&CC=CN&NR=220961986U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHAI LINYAN</creatorcontrib><creatorcontrib>BAI XING'AN</creatorcontrib><creatorcontrib>LIANG WEICHAO</creatorcontrib><creatorcontrib>YING YONGMAO</creatorcontrib><title>Zoom lens</title><description>The utility model discloses a zoom lens, the zoom lens sequentially comprises a first lens group, a second lens group, a third lens group, a fourth lens group and a fifth lens group from an object side to an image side along an optical axis, the first lens group is a fixed group with positive focal power; 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| language | chi ; eng |
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| subjects | OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS |
| title | Zoom lens |
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