Fixed-focus lens
A fixed-focus lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and an aperture. One of the seventh lens and the eighth lens is a positive lens, and the other of the seventh lens and the eighth lens is a negative lens....
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| creator | TSENG, CHIEN-HSIUNG KUNG, CHIAN |
| description | A fixed-focus lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and an aperture. One of the seventh lens and the eighth lens is a positive lens, and the other of the seventh lens and the eighth lens is a negative lens. The aperture is arranged in front of the fifth lens. The fixed-focus lens satisfies a following condition: 0.2 < D1/LT < 0.5, wherein D1 is an outer diameter of the first lens, and LT is a distance in an optical axis between two surfaces of two lens on two outermost sides of the fixed-focus lens. |
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One of the seventh lens and the eighth lens is a positive lens, and the other of the seventh lens and the eighth lens is a negative lens. The aperture is arranged in front of the fifth lens. The fixed-focus lens satisfies a following condition: 0.2 < D1/LT < 0.5, wherein D1 is an outer diameter of the first lens, and LT is a distance in an optical axis between two surfaces of two lens on two outermost sides of the fixed-focus lens.</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=20230901&DB=EPODOC&CC=TW&NR=202334693A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230901&DB=EPODOC&CC=TW&NR=202334693A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TSENG, CHIEN-HSIUNG</creatorcontrib><creatorcontrib>KUNG, CHIAN</creatorcontrib><title>Fixed-focus lens</title><description>A fixed-focus lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and an aperture. One of the seventh lens and the eighth lens is a positive lens, and the other of the seventh lens and the eighth lens is a negative lens. The aperture is arranged in front of the fifth lens. The fixed-focus lens satisfies a following condition: 0.2 < D1/LT < 0.5, wherein D1 is an outer diameter of the first lens, and LT is a distance in an optical axis between two surfaces of two lens on two outermost sides of the fixed-focus lens.</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>eNrjZBBwy6xITdFNy08uLVbISc0r5mFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8SHhRgZGxsYmZpbGjsbEqAEAm6UfOg</recordid><startdate>20230901</startdate><enddate>20230901</enddate><creator>TSENG, CHIEN-HSIUNG</creator><creator>KUNG, CHIAN</creator><scope>EVB</scope></search><sort><creationdate>20230901</creationdate><title>Fixed-focus lens</title><author>TSENG, CHIEN-HSIUNG ; KUNG, CHIAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_TW202334693A3</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>TSENG, CHIEN-HSIUNG</creatorcontrib><creatorcontrib>KUNG, CHIAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TSENG, CHIEN-HSIUNG</au><au>KUNG, CHIAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Fixed-focus lens</title><date>2023-09-01</date><risdate>2023</risdate><abstract>A fixed-focus lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and an aperture. One of the seventh lens and the eighth lens is a positive lens, and the other of the seventh lens and the eighth lens is a negative lens. The aperture is arranged in front of the fifth lens. The fixed-focus lens satisfies a following condition: 0.2 < D1/LT < 0.5, wherein D1 is an outer diameter of the first lens, and LT is a distance in an optical axis between two surfaces of two lens on two outermost sides of the fixed-focus lens.</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 | Fixed-focus lens |
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