Optical projection device and electronic device
The invention provides an optical projection device and an electronic device including the same. The optical projection device comprises a light source for emitting illumination light; a diffractive optical element for receiving the illumination light and diffracting at least a portion of the receiv...
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| creator | XIE YISHAN PAN MINGYANG |
| description | The invention provides an optical projection device and an electronic device including the same. The optical projection device comprises a light source for emitting illumination light; a diffractive optical element for receiving the illumination light and diffracting at least a portion of the received illumination light to obtain structured light having a diffraction pattern, wherein the structured light is projected into a projection area of the optical projection device, a portion of the illumination light that passes through the diffractive optical element but is not diffracted is defined as zero-order light, and the structured light emitted by the diffractive optical element is transmitted in different directions with the zero-order light; a detecting element for receiving the zero-order light and detecting the optical power of the zero-order light; and a controller in communication connection to the detecting element and used for adjusting the driving power of the light source according to the optical po |
| format | Patent |
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The optical projection device comprises a light source for emitting illumination light; a diffractive optical element for receiving the illumination light and diffracting at least a portion of the received illumination light to obtain structured light having a diffraction pattern, wherein the structured light is projected into a projection area of the optical projection device, a portion of the illumination light that passes through the diffractive optical element but is not diffracted is defined as zero-order light, and the structured light emitted by the diffractive optical element is transmitted in different directions with the zero-order light; a detecting element for receiving the zero-order light and detecting the optical power of the zero-order light; and a controller in communication connection to the detecting element and used for adjusting the driving power of the light source according to the optical po</description><language>chi ; eng</language><subject>ACCESSORIES THEREFOR ; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES ; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM ; CINEMATOGRAPHY ; ELECTROGRAPHY ; HOLOGRAPHY ; MEASURING ; MEASURING ANGLES ; MEASURING AREAS ; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS ; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHOTOGRAPHY ; PHYSICS ; TESTING</subject><creationdate>2019</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=20190830&DB=EPODOC&CC=CN&NR=110187596A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190830&DB=EPODOC&CC=CN&NR=110187596A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>XIE YISHAN</creatorcontrib><creatorcontrib>PAN MINGYANG</creatorcontrib><title>Optical projection device and electronic device</title><description>The invention provides an optical projection device and an electronic device including the same. The optical projection device comprises a light source for emitting illumination light; a diffractive optical element for receiving the illumination light and diffracting at least a portion of the received illumination light to obtain structured light having a diffraction pattern, wherein the structured light is projected into a projection area of the optical projection device, a portion of the illumination light that passes through the diffractive optical element but is not diffracted is defined as zero-order light, and the structured light emitted by the diffractive optical element is transmitted in different directions with the zero-order light; a detecting element for receiving the zero-order light and detecting the optical power of the zero-order light; and a controller in communication connection to the detecting element and used for adjusting the driving power of the light source according to the optical po</description><subject>ACCESSORIES THEREFOR</subject><subject>APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES</subject><subject>APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM</subject><subject>CINEMATOGRAPHY</subject><subject>ELECTROGRAPHY</subject><subject>HOLOGRAPHY</subject><subject>MEASURING</subject><subject>MEASURING ANGLES</subject><subject>MEASURING AREAS</subject><subject>MEASURING IRREGULARITIES OF SURFACES OR CONTOURS</subject><subject>MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHOTOGRAPHY</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZND3LyjJTE7MUSgoys9KTS7JzM9TSEkty0xOVUjMS1FIzQGKFeXnZSZDRXkYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyal5qSbyzn6GhgaGFuamlmaMxMWoAN2YrBg</recordid><startdate>20190830</startdate><enddate>20190830</enddate><creator>XIE YISHAN</creator><creator>PAN MINGYANG</creator><scope>EVB</scope></search><sort><creationdate>20190830</creationdate><title>Optical projection device and electronic device</title><author>XIE YISHAN ; PAN MINGYANG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN110187596A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2019</creationdate><topic>ACCESSORIES THEREFOR</topic><topic>APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES</topic><topic>APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM</topic><topic>CINEMATOGRAPHY</topic><topic>ELECTROGRAPHY</topic><topic>HOLOGRAPHY</topic><topic>MEASURING</topic><topic>MEASURING ANGLES</topic><topic>MEASURING AREAS</topic><topic>MEASURING IRREGULARITIES OF SURFACES OR CONTOURS</topic><topic>MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHOTOGRAPHY</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>XIE YISHAN</creatorcontrib><creatorcontrib>PAN MINGYANG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>XIE YISHAN</au><au>PAN MINGYANG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Optical projection device and electronic device</title><date>2019-08-30</date><risdate>2019</risdate><abstract>The invention provides an optical projection device and an electronic device including the same. The optical projection device comprises a light source for emitting illumination light; a diffractive optical element for receiving the illumination light and diffracting at least a portion of the received illumination light to obtain structured light having a diffraction pattern, wherein the structured light is projected into a projection area of the optical projection device, a portion of the illumination light that passes through the diffractive optical element but is not diffracted is defined as zero-order light, and the structured light emitted by the diffractive optical element is transmitted in different directions with the zero-order light; a detecting element for receiving the zero-order light and detecting the optical power of the zero-order light; and a controller in communication connection to the detecting element and used for adjusting the driving power of the light source according to the optical po</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS TESTING |
| title | Optical projection device and electronic device |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-13T02%3A39%3A10IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=XIE%20YISHAN&rft.date=2019-08-30&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN110187596A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |