LIGHT DETECTION DEVICE AND MEASUREMENT DEVICE
To provide a light detection device capable of reducing optical crosstalk between light detection regions.SOLUTION: A light detection module 2 comprises a plurality of PD groups 221 and TIA arrays 23A and 23B. Each PD group 221 includes a PD 22a for detecting a light pulse made incident from outside...
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| creator | NAITO FUMIYA MURAMATSU MASANORI MAEKITA KAZUAKI OKAZAKI YUJI |
| description | To provide a light detection device capable of reducing optical crosstalk between light detection regions.SOLUTION: A light detection module 2 comprises a plurality of PD groups 221 and TIA arrays 23A and 23B. Each PD group 221 includes a PD 22a for detecting a light pulse made incident from outside the light detection module 2, and a PD 22b arranged side by side with the PD 22a. The TIA arrays 23A and 23B generate a signal corresponding to a difference between a current signal obtained by the PD 22a and a current signal obtained by the PD 22b. When a light pulse impinges on the PD 22a of one PD group 221 among the plurality of PD groups 221, part of the light pulse impinges on the PD 22a and PD 22b of at least one other PD group 221 through reflection and/or diffusion in the light detection module 2.SELECTED DRAWING: Figure 2
【課題】光検出領域間の光学的クロストークを低減可能な光検出装置を提供する。【解決手段】光検出モジュール２は、複数のＰＤ群２２１と、ＴＩＡアレイ２３Ａ及び２３Ｂと、を備える。各ＰＤ群２２１は、光検出モジュール２の外部から入射する光パルスを検出するためのＰＤ２２ａ、及びＰＤ２２ａと並んで配置されたＰＤ２２ｂを含む。ＴＩＡアレイ２３Ａ及び２３Ｂは、ＰＤ２２ａにより得られる電流信号とＰＤ２２ｂにより得られる電流信号との差に応じた信号を生成する。複数のＰＤ群２２１のうち一つのＰＤ群２２１のＰＤ２２ａに光パルスが入射する際、他の少なくとも一つのＰＤ群２２１のＰＤ２２ａ及びＰＤ２２ｂには、光検出モジュール２の内部における反射、拡散またはその双方により光パルスの一部が入射する。【選択図】図２ |
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【課題】光検出領域間の光学的クロストークを低減可能な光検出装置を提供する。【解決手段】光検出モジュール２は、複数のＰＤ群２２１と、ＴＩＡアレイ２３Ａ及び２３Ｂと、を備える。各ＰＤ群２２１は、光検出モジュール２の外部から入射する光パルスを検出するためのＰＤ２２ａ、及びＰＤ２２ａと並んで配置されたＰＤ２２ｂを含む。ＴＩＡアレイ２３Ａ及び２３Ｂは、ＰＤ２２ａにより得られる電流信号とＰＤ２２ｂにより得られる電流信号との差に応じた信号を生成する。複数のＰＤ群２２１のうち一つのＰＤ群２２１のＰＤ２２ａに光パルスが入射する際、他の少なくとも一つのＰＤ群２２１のＰＤ２２ａ及びＰＤ２２ｂには、光検出モジュール２の内部における反射、拡散またはその双方により光パルスの一部が入射する。【選択図】図２</description><language>eng ; jpn</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; BASIC ELECTRIC ELEMENTS ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; PHYSICS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; SEMICONDUCTOR DEVICES ; TESTING</subject><creationdate>2022</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=20221018&DB=EPODOC&CC=JP&NR=2022159618A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221018&DB=EPODOC&CC=JP&NR=2022159618A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAITO FUMIYA</creatorcontrib><creatorcontrib>MURAMATSU MASANORI</creatorcontrib><creatorcontrib>MAEKITA KAZUAKI</creatorcontrib><creatorcontrib>OKAZAKI YUJI</creatorcontrib><title>LIGHT DETECTION DEVICE AND MEASUREMENT DEVICE</title><description>To provide a light detection device capable of reducing optical crosstalk between light detection regions.SOLUTION: A light detection module 2 comprises a plurality of PD groups 221 and TIA arrays 23A and 23B. Each PD group 221 includes a PD 22a for detecting a light pulse made incident from outside the light detection module 2, and a PD 22b arranged side by side with the PD 22a. The TIA arrays 23A and 23B generate a signal corresponding to a difference between a current signal obtained by the PD 22a and a current signal obtained by the PD 22b. When a light pulse impinges on the PD 22a of one PD group 221 among the plurality of PD groups 221, part of the light pulse impinges on the PD 22a and PD 22b of at least one other PD group 221 through reflection and/or diffusion in the light detection module 2.SELECTED DRAWING: Figure 2
【課題】光検出領域間の光学的クロストークを低減可能な光検出装置を提供する。【解決手段】光検出モジュール２は、複数のＰＤ群２２１と、ＴＩＡアレイ２３Ａ及び２３Ｂと、を備える。各ＰＤ群２２１は、光検出モジュール２の外部から入射する光パルスを検出するためのＰＤ２２ａ、及びＰＤ２２ａと並んで配置されたＰＤ２２ｂを含む。ＴＩＡアレイ２３Ａ及び２３Ｂは、ＰＤ２２ａにより得られる電流信号とＰＤ２２ｂにより得られる電流信号との差に応じた信号を生成する。複数のＰＤ群２２１のうち一つのＰＤ群２２１のＰＤ２２ａに光パルスが入射する際、他の少なくとも一つのＰＤ群２２１のＰＤ２２ａ及びＰＤ２２ｂには、光検出モジュール２の内部における反射、拡散またはその双方により光パルスの一部が入射する。【選択図】図２</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>SEMICONDUCTOR DEVICES</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZND18XT3CFFwcQ1xdQ7x9PcDssI8nV0VHP1cFHxdHYNDg1x9Xf1CoMI8DKxpiTnFqbxQmptByc01xNlDN7UgPz61uCAxOTUvtSTeK8DIwMjI0NTSzNDC0ZgoRQDy9yXA</recordid><startdate>20221018</startdate><enddate>20221018</enddate><creator>NAITO FUMIYA</creator><creator>MURAMATSU MASANORI</creator><creator>MAEKITA KAZUAKI</creator><creator>OKAZAKI YUJI</creator><scope>EVB</scope></search><sort><creationdate>20221018</creationdate><title>LIGHT DETECTION DEVICE AND MEASUREMENT DEVICE</title><author>NAITO FUMIYA ; MURAMATSU MASANORI ; MAEKITA KAZUAKI ; OKAZAKI YUJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2022159618A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2022</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>SEMICONDUCTOR DEVICES</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>NAITO FUMIYA</creatorcontrib><creatorcontrib>MURAMATSU MASANORI</creatorcontrib><creatorcontrib>MAEKITA KAZUAKI</creatorcontrib><creatorcontrib>OKAZAKI YUJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAITO FUMIYA</au><au>MURAMATSU MASANORI</au><au>MAEKITA KAZUAKI</au><au>OKAZAKI YUJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LIGHT DETECTION DEVICE AND MEASUREMENT DEVICE</title><date>2022-10-18</date><risdate>2022</risdate><abstract>To provide a light detection device capable of reducing optical crosstalk between light detection regions.SOLUTION: A light detection module 2 comprises a plurality of PD groups 221 and TIA arrays 23A and 23B. Each PD group 221 includes a PD 22a for detecting a light pulse made incident from outside the light detection module 2, and a PD 22b arranged side by side with the PD 22a. The TIA arrays 23A and 23B generate a signal corresponding to a difference between a current signal obtained by the PD 22a and a current signal obtained by the PD 22b. When a light pulse impinges on the PD 22a of one PD group 221 among the plurality of PD groups 221, part of the light pulse impinges on the PD 22a and PD 22b of at least one other PD group 221 through reflection and/or diffusion in the light detection module 2.SELECTED DRAWING: Figure 2
【課題】光検出領域間の光学的クロストークを低減可能な光検出装置を提供する。【解決手段】光検出モジュール２は、複数のＰＤ群２２１と、ＴＩＡアレイ２３Ａ及び２３Ｂと、を備える。各ＰＤ群２２１は、光検出モジュール２の外部から入射する光パルスを検出するためのＰＤ２２ａ、及びＰＤ２２ａと並んで配置されたＰＤ２２ｂを含む。ＴＩＡアレイ２３Ａ及び２３Ｂは、ＰＤ２２ａにより得られる電流信号とＰＤ２２ｂにより得られる電流信号との差に応じた信号を生成する。複数のＰＤ群２２１のうち一つのＰＤ群２２１のＰＤ２２ａに光パルスが入射する際、他の少なくとも一つのＰＤ群２２１のＰＤ２２ａ及びＰＤ２２ｂには、光検出モジュール２の内部における反射、拡散またはその双方により光パルスの一部が入射する。【選択図】図２</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES BASIC ELECTRIC ELEMENTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SEMICONDUCTOR DEVICES TESTING |
| title | LIGHT DETECTION DEVICE AND MEASUREMENT DEVICE |
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