Wide angle lens
The present invention discloses a wide angle lens. The wide angle lens comprises, from an object side in sequence: a first lens with a positive refractive power, a second lens with a negative refractive power, a third lens with a positive refractive power, a fourth lens with a negative refractive po...
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creator | Zhang, Lei Oinuma, Kenji |
description | The present invention discloses a wide angle lens. The wide angle lens comprises, from an object side in sequence: a first lens with a positive refractive power, a second lens with a negative refractive power, a third lens with a positive refractive power, a fourth lens with a negative refractive power, a fifth lens with a positive refractive power, and a sixth lens with a negative refractive power. The wide angel lens further satisfies specific conditions: 0.80f1/f1.50, −0.50f2/f3−0.05, 1.15d1/d91.40 and T56min/d110.50. The wide angle lens can achieve a high performance while obtaining a low TTL. |
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The wide angle lens comprises, from an object side in sequence: a first lens with a positive refractive power, a second lens with a negative refractive power, a third lens with a positive refractive power, a fourth lens with a negative refractive power, a fifth lens with a positive refractive power, and a sixth lens with a negative refractive power. The wide angel lens further satisfies specific conditions: 0.80f1/f1.50, −0.50f2/f3−0.05, 1.15d1/d91.40 and T56min/d110.50. 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The wide angle lens comprises, from an object side in sequence: a first lens with a positive refractive power, a second lens with a negative refractive power, a third lens with a positive refractive power, a fourth lens with a negative refractive power, a fifth lens with a positive refractive power, and a sixth lens with a negative refractive power. The wide angel lens further satisfies specific conditions: 0.80f1/f1.50, −0.50f2/f3−0.05, 1.15d1/d91.40 and T56min/d110.50. The wide angle lens can achieve a high performance while obtaining a low TTL.</description><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOAPz0xJVUjMS89JVchJzSvmYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxocGGhsaGJgZmBk5GxsSoAQBgSx6M</recordid><startdate>20220426</startdate><enddate>20220426</enddate><creator>Zhang, Lei</creator><creator>Oinuma, Kenji</creator><scope>EVB</scope></search><sort><creationdate>20220426</creationdate><title>Wide angle lens</title><author>Zhang, Lei ; Oinuma, Kenji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US11314060B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2022</creationdate><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Lei</creatorcontrib><creatorcontrib>Oinuma, Kenji</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Zhang, Lei</au><au>Oinuma, Kenji</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Wide angle lens</title><date>2022-04-26</date><risdate>2022</risdate><abstract>The present invention discloses a wide angle lens. The wide angle lens comprises, from an object side in sequence: a first lens with a positive refractive power, a second lens with a negative refractive power, a third lens with a positive refractive power, a fourth lens with a negative refractive power, a fifth lens with a positive refractive power, and a sixth lens with a negative refractive power. The wide angel lens further satisfies specific conditions: 0.80f1/f1.50, −0.50f2/f3−0.05, 1.15d1/d91.40 and T56min/d110.50. The wide angle lens can achieve a high performance while obtaining a low TTL.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS |
title | Wide angle lens |
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