LIGHT SOURCE DEVICE
A light source device (1) includes a plurality of LEDs (3), a collimating optical system (5) disposed corresponding to the plurality of LEDs (3), a condensing optical system (7) that condenses light exiting from the collimating optical system (5), and a fly-eye integrator (10) into which the light e...
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| creator | MATSUSHIMA, Takeo FUKUDA, Yusuke |
| description | A light source device (1) includes a plurality of LEDs (3), a collimating optical system (5) disposed corresponding to the plurality of LEDs (3), a condensing optical system (7) that condenses light exiting from the collimating optical system (5), and a fly-eye integrator (10) into which the light exiting from the condensing optical system (7) is incident. Assuming that parallel light is defined as a virtual secondary light source (VS1), the parallel light being obtained from light traveling from a virtual primary light source (VS1) disposed at a back focus position of the condensing optical system (7) toward the condensing optical system (7) with a maximum effective acceptance angle (θL) of the fly-eye integrator (10) as a divergence angle and then passing through the condensing optical system (7), the virtual secondary light source (VS2) has a width that substantially coincides with a width of a secondary light source determined according to a shape of a light exit surface of the collimating optical system (5). |
| format | Patent |
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Assuming that parallel light is defined as a virtual secondary light source (VS1), the parallel light being obtained from light traveling from a virtual primary light source (VS1) disposed at a back focus position of the condensing optical system (7) toward the condensing optical system (7) with a maximum effective acceptance angle (θL) of the fly-eye integrator (10) as a divergence angle and then passing through the condensing optical system (7), the virtual secondary light source (VS2) has a width that substantially coincides with a width of a secondary light source determined according to a shape of a light exit surface of the collimating optical system (5).</description><language>eng ; fre ; ger</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 ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHOTOGRAPHY ; PHYSICS</subject><creationdate>2024</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=20240703&DB=EPODOC&CC=EP&NR=4394499A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240703&DB=EPODOC&CC=EP&NR=4394499A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MATSUSHIMA, Takeo</creatorcontrib><creatorcontrib>FUKUDA, Yusuke</creatorcontrib><title>LIGHT SOURCE DEVICE</title><description>A light source device (1) includes a plurality of LEDs (3), a collimating optical system (5) disposed corresponding to the plurality of LEDs (3), a condensing optical system (7) that condenses light exiting from the collimating optical system (5), and a fly-eye integrator (10) into which the light exiting from the condensing optical system (7) is incident. 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Assuming that parallel light is defined as a virtual secondary light source (VS1), the parallel light being obtained from light traveling from a virtual primary light source (VS1) disposed at a back focus position of the condensing optical system (7) toward the condensing optical system (7) with a maximum effective acceptance angle (θL) of the fly-eye integrator (10) as a divergence angle and then passing through the condensing optical system (7), the virtual secondary light source (VS2) has a width that substantially coincides with a width of a secondary light source determined according to a shape of a light exit surface of the collimating optical system (5).</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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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 OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS |
| title | LIGHT SOURCE DEVICE |
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