OPTICAL MODULES THAT REDUCE SPECKLE CONTRAST AND DIFFRACTION ARTIFACTS
An optical module, for use in a depth camera, includes a plurality of laser emitting elements, each of which emits a corresponding laser beam, and a micro-lens array (MLA) that includes a plurality of lenslets. Laser beams emitted by adjacent laser emitting elements at least partially overlap one an...
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| creator | Hudman Joshua DePue Marshall |
| description | An optical module, for use in a depth camera, includes a plurality of laser emitting elements, each of which emits a corresponding laser beam, and a micro-lens array (MLA) that includes a plurality of lenslets. Laser beams emitted by adjacent laser emitting elements at least partially overlap one another prior to being incident on the MLA For each lenslet of at least a majority of the lenslets of the MLA, the lenslet is at least partially filled by light corresponding to laser beams emitted by at least two of the laser emitting elements. The inclusion of the plurality of laser emitting elements is used to reduce speckle contrast. The overlap of the laser beams, and the at least partially filling of the lenslets of the MLA with light corresponding to laser beams emitted by multiple laser emitting elements, is used to reduce diffraction artifacts. |
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Laser beams emitted by adjacent laser emitting elements at least partially overlap one another prior to being incident on the MLA For each lenslet of at least a majority of the lenslets of the MLA, the lenslet is at least partially filled by light corresponding to laser beams emitted by at least two of the laser emitting elements. The inclusion of the plurality of laser emitting elements is used to reduce speckle contrast. The overlap of the laser beams, and the at least partially filling of the lenslets of the MLA with light corresponding to laser beams emitted by multiple laser emitting elements, is used to reduce diffraction artifacts.</description><language>eng</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; TESTING</subject><creationdate>2016</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=20161124&DB=EPODOC&CC=US&NR=2016341829A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20161124&DB=EPODOC&CC=US&NR=2016341829A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Hudman Joshua</creatorcontrib><creatorcontrib>DePue Marshall</creatorcontrib><title>OPTICAL MODULES THAT REDUCE SPECKLE CONTRAST AND DIFFRACTION ARTIFACTS</title><description>An optical module, for use in a depth camera, includes a plurality of laser emitting elements, each of which emits a corresponding laser beam, and a micro-lens array (MLA) that includes a plurality of lenslets. Laser beams emitted by adjacent laser emitting elements at least partially overlap one another prior to being incident on the MLA For each lenslet of at least a majority of the lenslets of the MLA, the lenslet is at least partially filled by light corresponding to laser beams emitted by at least two of the laser emitting elements. The inclusion of the plurality of laser emitting elements is used to reduce speckle contrast. The overlap of the laser beams, and the at least partially filling of the lenslets of the MLA with light corresponding to laser beams emitted by multiple laser emitting elements, is used to reduce diffraction artifacts.</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHDzDwjxdHb0UfD1dwn1cQ1WCPFwDFEIcnUJdXZVCA5wdfb2cVVw9vcLCXIMDlFw9HNRcPF0cwtydA7x9PdTcAwK8XQDsoN5GFjTEnOKU3mhNDeDsptriLOHbmpBfnxqcUFicmpeakl8aLCRgaGZsYmhhZGlo6ExcaoAYY0tSQ</recordid><startdate>20161124</startdate><enddate>20161124</enddate><creator>Hudman Joshua</creator><creator>DePue Marshall</creator><scope>EVB</scope></search><sort><creationdate>20161124</creationdate><title>OPTICAL MODULES THAT REDUCE SPECKLE CONTRAST AND DIFFRACTION ARTIFACTS</title><author>Hudman Joshua ; DePue Marshall</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2016341829A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2016</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>Hudman Joshua</creatorcontrib><creatorcontrib>DePue Marshall</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hudman Joshua</au><au>DePue Marshall</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>OPTICAL MODULES THAT REDUCE SPECKLE CONTRAST AND DIFFRACTION ARTIFACTS</title><date>2016-11-24</date><risdate>2016</risdate><abstract>An optical module, for use in a depth camera, includes a plurality of laser emitting elements, each of which emits a corresponding laser beam, and a micro-lens array (MLA) that includes a plurality of lenslets. Laser beams emitted by adjacent laser emitting elements at least partially overlap one another prior to being incident on the MLA For each lenslet of at least a majority of the lenslets of the MLA, the lenslet is at least partially filled by light corresponding to laser beams emitted by at least two of the laser emitting elements. The inclusion of the plurality of laser emitting elements is used to reduce speckle contrast. The overlap of the laser beams, and the at least partially filling of the lenslets of the MLA with light corresponding to laser beams emitted by multiple laser emitting elements, is used to reduce diffraction artifacts.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING |
| title | OPTICAL MODULES THAT REDUCE SPECKLE CONTRAST AND DIFFRACTION ARTIFACTS |
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