Daga farkon na'urorin ToF zuwa lidar zuwa DMS na yanzu, duk suna amfani da rukunin infrared na kusa:
Tsarin TOF (850nm/940nm)
LiDAR (905nm/1550nm)
DMS/OMS (940nm)
A lokaci guda, taga na gani yana daga cikin hanyar gani na mai ganowa / mai karɓa. Babban aikinsa shi ne don kare samfurin yayin watsa laser na takamaiman tsayin da aka fitar daga tushen Laser, da tattara madaidaicin raƙuman haske ta taga.
Dole ne wannan taga ta kasance tana da ayyuka na asali masu zuwa:
1. A gani yana bayyana baƙar fata don rufe na'urorin optoelectronic a bayan taga;
2. Gabaɗaya faɗuwar haske na taga mai gani yana da ƙasa kuma ba zai haifar da hangen nesa ba;
3. Yana da kyau watsawa ga Laser band. Misali, ga mafi yawan na'urar gano Laser 905nm, watsawar taga a cikin rukunin 905nm na iya kaiwa sama da 95%.
4. Tace haske mai cutarwa, inganta siginar sigina-zuwa amo na tsarin, da haɓaka ikon ganowa na lidar.
Koyaya, LiDAR da DMS duka samfuran kera motoci ne, don haka yadda samfuran taga zasu iya biyan buƙatun ingantaccen aminci, babban watsawar band ɗin haske, da bayyanar baki ya zama matsala.
01. Takaitacciyar mafita na taga a halin yanzu akan kasuwa
Akwai galibi iri uku:
Nau'in 1: An yi substrate daga kayan shigar infrared
Wannan nau'in kayan baƙar fata ne saboda yana iya ɗaukar hasken da ake iya gani kuma yana watsa makaɗaɗɗen infrared kusa, tare da watsawa kusan 90% (kamar 905nm a cikin rukunin infrared na kusa) da kuma cikakken haske na kusan 10%.
Irin wannan kayan na iya amfani da infrared sosai m guduro substrates, irin su Bayer Makrolon PC 2405, amma guduro substrate yana da matalauta bonding ƙarfi tare da Tantancewar fim, ba zai iya jure matsananci gwajin muhalli gwaje-gwaje, kuma ba za a iya plated da sosai m ITO m Conductive fim (amfani da lantarki da kuma defogging) don haka yawanci irin wannan samfurin da ba a yi amfani da ba tare da rarrabẽwa. bukatar dumama.
Hakanan zaka iya zaɓar SCHOTT RG850 ko Sinanci HWB850 gilashin baƙar fata, amma farashin wannan nau'in gilashin baƙar fata yana da yawa. Ɗaukar gilashin HWB850 a matsayin misali, farashinsa ya fi sau 8 fiye da na gilashin gani na yau da kullun masu girman iri ɗaya, kuma galibin irin wannan nau'in samfurin ba zai iya wuce ma'auni na ROHS ba don haka ba za a iya amfani da shi ga manyan windows lidar da aka samar ba.
Nau'in 2: ta amfani da tawada mai watsawa infrared
Irin wannan nau'in tawada mai shigar da infrared yana ɗaukar haske mai gani kuma yana iya watsa makaɗaɗɗen infrared kusa, tare da watsawa kusan 80% zuwa 90%, kuma gabaɗayan matakin watsawa yayi ƙasa. Haka kuma, bayan an haɗa tawada tare da na'urar gani da ido, juriyar yanayin ba zai iya wuce ƙayyadaddun buƙatun juriya na mota ba (kamar gwajin zafin jiki), don haka tawada masu shigar da infrared galibi ana amfani da su a cikin wasu samfuran da ke da ƙarancin buƙatun juriya kamar wayoyi masu wayo da kyamarorin infrared.
Nau'i 3: ta amfani da baƙar fata mai rufi
Tace mai baƙar fata matatar da ke iya toshe hasken da ake iya gani kuma yana da babban watsawa a rukunin NIR (kamar 905nm).
Tace mai baƙar fata an ƙera shi da silicon hydride, silicon oxide da sauran kayan fim na bakin ciki, kuma an shirya shi ta amfani da fasahar sputtering magnetron. Yana da halin kwanciyar hankali kuma abin dogara kuma ana iya samar da shi da yawa. A halin yanzu, fina-finan tace baƙar fata na al'ada gabaɗaya suna ɗaukar tsari mai kama da fim mai yanke haske. A karkashin al'ada silicon hydride magnetron sputtering film kafa tsari, da saba la'akari shi ne don rage sha na silicon hydride, musamman sha na kusa-infrared band, don tabbatar da wani in mun gwada da high watsawa a cikin 905nm band ko wasu lidar makada kamar 1550nm.
Lokacin aikawa: Nuwamba-22-2024
