Imaging optical system and imaging device
An imaging optical system 10 includes, in order from an object side, a front group LF, an aperture stop S, and a rear group LB. The front group LF includes a first lens L1 having a negative refractive power. The rear group LB includes: a fourth lens L4 disposed closest to the object side and having...
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creator | TOTSUKA HIDEKAZU |
description | An imaging optical system 10 includes, in order from an object side, a front group LF, an aperture stop S, and a rear group LB. The front group LF includes a first lens L1 having a negative refractive power. The rear group LB includes: a fourth lens L4 disposed closest to the object side and having a positive refractive power; and a seventh lens (L7) disposed closest to the image side and having a negative refractive power, the surface of the image side having an extreme value at a position other than the point of intersection with the optical axis. The imaging optical system 10 satisfies the following conditional expressions. 0.6 lt; (R1-R2)/(R1 + R2) lt; 1.0... (1) where R1 is the radius of curvature of the object-side surface of the first lens, and R2 is the radius of curvature of the image-side surface of the first lens.
摄像光学系统10从物体侧起依次具备前组LF、孔径光阑S、以及后组LB。前组LF包括具有负的光焦度的第1透镜L1。后组LB包括:最靠物体侧地配置且具有正的光焦度的第4透镜L4;以及最靠像侧地配置且具有负的光焦度,像侧的面在与光轴的交点以外的位置处具有极值的第7透镜L7。摄像光学系统10满足以下的条件式。0.6 |
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摄像光学系统10从物体侧起依次具备前组LF、孔径光阑S、以及后组LB。前组LF包括具有负的光焦度的第1透镜L1。后组LB包括:最靠物体侧地配置且具有正的光焦度的第4透镜L4;以及最靠像侧地配置且具有负的光焦度,像侧的面在与光轴的交点以外的位置处具有极值的第7透镜L7。摄像光学系统10满足以下的条件式。0.6<(R1-R2)/(R1+R2)<1.0...(1),其中,R1:</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=20230704&DB=EPODOC&CC=CN&NR=116391142A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230704&DB=EPODOC&CC=CN&NR=116391142A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TOTSUKA HIDEKAZU</creatorcontrib><title>Imaging optical system and imaging device</title><description>An imaging optical system 10 includes, in order from an object side, a front group LF, an aperture stop S, and a rear group LB. The front group LF includes a first lens L1 having a negative refractive power. The rear group LB includes: a fourth lens L4 disposed closest to the object side and having a positive refractive power; and a seventh lens (L7) disposed closest to the image side and having a negative refractive power, the surface of the image side having an extreme value at a position other than the point of intersection with the optical axis. The imaging optical system 10 satisfies the following conditional expressions. 0.6 lt; (R1-R2)/(R1 + R2) lt; 1.0... (1) where R1 is the radius of curvature of the object-side surface of the first lens, and R2 is the radius of curvature of the image-side surface of the first lens.
摄像光学系统10从物体侧起依次具备前组LF、孔径光阑S、以及后组LB。前组LF包括具有负的光焦度的第1透镜L1。后组LB包括:最靠物体侧地配置且具有正的光焦度的第4透镜L4;以及最靠像侧地配置且具有负的光焦度,像侧的面在与光轴的交点以外的位置处具有极值的第7透镜L7。摄像光学系统10满足以下的条件式。0.6<(R1-R2)/(R1+R2)<1.0...(1),其中,R1:</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>eNrjZND0zE1Mz8xLV8gvKMlMTsxRKK4sLknNVUjMS1HIhEqlpJZlJqfyMLCmJeYUp_JCaW4GRTfXEGcP3dSC_PjU4oLE5NS81JJ4Zz9DQzNjS0NDEyNHY2LUAADt7Ch0</recordid><startdate>20230704</startdate><enddate>20230704</enddate><creator>TOTSUKA HIDEKAZU</creator><scope>EVB</scope></search><sort><creationdate>20230704</creationdate><title>Imaging optical system and imaging device</title><author>TOTSUKA HIDEKAZU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN116391142A3</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>TOTSUKA HIDEKAZU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TOTSUKA HIDEKAZU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Imaging optical system and imaging device</title><date>2023-07-04</date><risdate>2023</risdate><abstract>An imaging optical system 10 includes, in order from an object side, a front group LF, an aperture stop S, and a rear group LB. The front group LF includes a first lens L1 having a negative refractive power. The rear group LB includes: a fourth lens L4 disposed closest to the object side and having a positive refractive power; and a seventh lens (L7) disposed closest to the image side and having a negative refractive power, the surface of the image side having an extreme value at a position other than the point of intersection with the optical axis. The imaging optical system 10 satisfies the following conditional expressions. 0.6 lt; (R1-R2)/(R1 + R2) lt; 1.0... (1) where R1 is the radius of curvature of the object-side surface of the first lens, and R2 is the radius of curvature of the image-side surface of the first lens.
摄像光学系统10从物体侧起依次具备前组LF、孔径光阑S、以及后组LB。前组LF包括具有负的光焦度的第1透镜L1。后组LB包括:最靠物体侧地配置且具有正的光焦度的第4透镜L4;以及最靠像侧地配置且具有负的光焦度,像侧的面在与光轴的交点以外的位置处具有极值的第7透镜L7。摄像光学系统10满足以下的条件式。0.6<(R1-R2)/(R1+R2)<1.0...(1),其中,R1:</abstract><oa>free_for_read</oa></addata></record> |
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subjects | OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS |
title | Imaging optical system and imaging device |
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