Compound lens
The utility model relates to the technical field of lenses, and provides a composite lens, which comprises a first lens, a second lens, a third lens and a fourth lens, and is characterized in that the first lens is provided with a first surface and a second surface which are oppositely arranged in t...
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| creator | FU ZUJIA FU ZEYU FU XIAOYONG |
| description | The utility model relates to the technical field of lenses, and provides a composite lens, which comprises a first lens, a second lens, a third lens and a fourth lens, and is characterized in that the first lens is provided with a first surface and a second surface which are oppositely arranged in the thickness direction; the second lens is provided with a third surface and a fourth surface, the third surface and the fourth surface are oppositely arranged in the thickness direction, and the third surface and the second surface are arranged in an attached mode; wherein the composite lens formed by the first lens and the second lens is provided with a first imaging area and a second imaging area formed around the first imaging area, and Fresnel textures are arranged in the second imaging area. The portions, located in the second imaging area, of the second surface and the third surface have the same or different curvature radiuses. The composite lens provided by the utility model aims to solve the problems that |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN219799821UU</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN219799821UU</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN219799821UU3</originalsourceid><addsrcrecordid>eNrjZOB1zs8tyC_NS1HISc0r5mFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8c5-RoaW5paWFkaGoaHGRCkCAHXrHv8</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Compound lens</title><source>esp@cenet</source><creator>FU ZUJIA ; FU ZEYU ; FU XIAOYONG</creator><creatorcontrib>FU ZUJIA ; FU ZEYU ; FU XIAOYONG</creatorcontrib><description>The utility model relates to the technical field of lenses, and provides a composite lens, which comprises a first lens, a second lens, a third lens and a fourth lens, and is characterized in that the first lens is provided with a first surface and a second surface which are oppositely arranged in the thickness direction; the second lens is provided with a third surface and a fourth surface, the third surface and the fourth surface are oppositely arranged in the thickness direction, and the third surface and the second surface are arranged in an attached mode; wherein the composite lens formed by the first lens and the second lens is provided with a first imaging area and a second imaging area formed around the first imaging area, and Fresnel textures are arranged in the second imaging area. The portions, located in the second imaging area, of the second surface and the third surface have the same or different curvature radiuses. The composite lens provided by the utility model aims to solve the problems that</description><language>chi ; eng</language><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS</subject><creationdate>2023</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=20231003&DB=EPODOC&CC=CN&NR=219799821U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231003&DB=EPODOC&CC=CN&NR=219799821U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FU ZUJIA</creatorcontrib><creatorcontrib>FU ZEYU</creatorcontrib><creatorcontrib>FU XIAOYONG</creatorcontrib><title>Compound lens</title><description>The utility model relates to the technical field of lenses, and provides a composite lens, which comprises a first lens, a second lens, a third lens and a fourth lens, and is characterized in that the first lens is provided with a first surface and a second surface which are oppositely arranged in the thickness direction; the second lens is provided with a third surface and a fourth surface, the third surface and the fourth surface are oppositely arranged in the thickness direction, and the third surface and the second surface are arranged in an attached mode; wherein the composite lens formed by the first lens and the second lens is provided with a first imaging area and a second imaging area formed around the first imaging area, and Fresnel textures are arranged in the second imaging area. The portions, located in the second imaging area, of the second surface and the third surface have the same or different curvature radiuses. The composite lens provided by the utility model aims to solve the problems that</description><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOB1zs8tyC_NS1HISc0r5mFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8c5-RoaW5paWFkaGoaHGRCkCAHXrHv8</recordid><startdate>20231003</startdate><enddate>20231003</enddate><creator>FU ZUJIA</creator><creator>FU ZEYU</creator><creator>FU XIAOYONG</creator><scope>EVB</scope></search><sort><creationdate>20231003</creationdate><title>Compound lens</title><author>FU ZUJIA ; FU ZEYU ; FU XIAOYONG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN219799821UU3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2023</creationdate><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>FU ZUJIA</creatorcontrib><creatorcontrib>FU ZEYU</creatorcontrib><creatorcontrib>FU XIAOYONG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FU ZUJIA</au><au>FU ZEYU</au><au>FU XIAOYONG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Compound lens</title><date>2023-10-03</date><risdate>2023</risdate><abstract>The utility model relates to the technical field of lenses, and provides a composite lens, which comprises a first lens, a second lens, a third lens and a fourth lens, and is characterized in that the first lens is provided with a first surface and a second surface which are oppositely arranged in the thickness direction; the second lens is provided with a third surface and a fourth surface, the third surface and the fourth surface are oppositely arranged in the thickness direction, and the third surface and the second surface are arranged in an attached mode; wherein the composite lens formed by the first lens and the second lens is provided with a first imaging area and a second imaging area formed around the first imaging area, and Fresnel textures are arranged in the second imaging area. The portions, located in the second imaging area, of the second surface and the third surface have the same or different curvature radiuses. The composite lens provided by the utility model aims to solve the problems that</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS |
| title | Compound lens |
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