Nau'ukan naruwan tabarau masana'antuhawa

Akwai galibi nau'ikan masarrafa guda huɗu, wato F-mount, C-mount, CS-mount da M12 mount. F-Mount babban maƙasudin maƙasudi ne, kuma gabaɗaya ya dace da ruwan tabarau mai tsayi mai tsayi fiye da 25mm. Lokacin da tsayin dakataccen ruwan tabarau na haƙiƙa bai kai kusan 25mm ba, saboda ƙananan girman ruwan tabarau na haƙiƙa, ana amfani da C-Mount ko CS-mount, wasu kuma suna amfani da ƙirar M12.

Bambanci tsakanin Dutsen C da Dutsen CS

Bambance-bambancen musaya tsakanin C da CS shine cewa nisa daga wurin tuntuɓar ruwan tabarau da kyamara zuwa madaidaicin jirgin ruwan ruwan tabarau (matsayin inda CCD photoelectric firikwensin kyamara ya kamata) ya bambanta. Nisa don ƙirar C-Mount shine 17.53mm.

Za a iya ƙara zoben adaftar 5mm C/CS zuwa ruwan tabarau na CS-Mount, ta yadda za a iya amfani da shi da kyamarori masu nau'in C.

Bambanci tsakanin Dutsen C da Dutsen CS

Mahimman sigogi na ruwan tabarau na masana'antu

Filin kallo (FOV):

FOV yana nufin kewayon abin da aka gani, wato ɓangaren abin da firikwensin kyamara ya ɗauka. (Yawancin filin kallo abu ne da dole ne a fahimta a cikin zaɓin)

Filin kallo

Nisan Aiki (WD):

Yana nufin nisa daga gaban ruwan tabarau zuwa abin da ake gwadawa. Wato, nisan saman don bayyana hoto.

Ƙaddamarwa:

Mafi ƙanƙancin girman fasalin fasalin akan abin da aka bincika wanda za'a iya auna shi ta tsarin hoto. A mafi yawancin lokuta, ƙaramin filin kallo, mafi kyawun ƙuduri.

Zurfin gani (DOF):

Ikon ruwan tabarau don kula da ƙudurin da ake so lokacin da abubuwa ke kusa ko nesa daga mafi kyawun mayar da hankali.

Zurfin gani

Sauran sigogi naruwan tabarau masana'antu

Girman guntu mai ɗaukar hoto:

Ingantacciyar girman yanki na guntu firikwensin kyamara, gabaɗaya yana nufin girman kwance. Wannan siga yana da matukar mahimmanci don ƙayyade madaidaicin sikelin ruwan tabarau don samun filin da ake so. Matsakaicin girman girman girman ruwan tabarau (PMAG) an bayyana shi ta hanyar girman girman guntu firikwensin zuwa filin kallo. Kodayake ma'auni na asali sun haɗa da girma da filin ra'ayi na guntun hotuna, PMAG ba ma'auni ba ne na asali.

Girman guntu mai ɗaukar hoto

Tsawon hankali (f):

“Tsawon hankali shine ma'aunin tattarawa ko bambance-bambancen haske a cikin tsarin gani, wanda ke nufin nisa daga cibiyar gani na ruwan tabarau zuwa abin da aka fi maida hankali kan tattara haske. Hakanan ita ce nisa daga tsakiyar ruwan tabarau zuwa jirgin sama mai hoto kamar fim ko CCD a cikin kyamara. f={Nasirin aiki/filin duba dogon gefe (ko gajeriyar gefen)}XCCD doguwar gefe (ko gajeriyar gefe)

Tasirin tsayin tsayin daka: ƙarami mai tsayi, mafi girman zurfin filin; Karamin tsayin tsayin daka, mafi girman murdiya; Ƙananan tsayin tsayin daka, mafi mahimmancin abin mamaki na vignetting, wanda ke rage haske a gefen ɓarna.

Ƙaddamarwa:

Yana nuna mafi ƙarancin tazara tsakanin maki 2 waɗanda saitin ruwan tabarau na haƙiƙa za a iya gani

0.61x amfani da tsayin igiyar ruwa (λ) / NA = ƙuduri (μ)

Hanyar lissafin da ke sama na iya ƙididdige ƙuduri a ƙa'idar, amma ba ta haɗa da murdiya ba.

※ Tsayin da aka yi amfani da shi shine 550nm

Ma'anar:

Ana iya ganin adadin layin baki da fari a tsakiyar 1mm. Naúrar (lp)/mm.

MTF (Aiki Canja wurin Modulation)

MTF

Karya:

Ɗaya daga cikin alamomi don auna aikin ruwan tabarau shine aberration. Yana nufin madaidaiciyar layi a waje da babban axis a cikin jirgin sama na batun, wanda ya zama lanƙwasa bayan an kwatanta shi ta hanyar tsarin gani. Kuskuren hoto na wannan tsarin gani ana kiransa murdiya. Rushewar ɓata lokaci yana shafar juzu'i na hoton ne kawai, ba kaifin hoton ba.

Aperture da F-Lambar:

Takardun lenticular na'ura ce da ake amfani da ita don sarrafa adadin hasken da ke wucewa ta cikin ruwan tabarau, yawanci a cikin ruwan tabarau. Muna amfani da ƙimar F don bayyana girman buɗewa, kamar f1.4, F2.0, F2.8, da sauransu.

Aperture da F-Lambar

Girman gani:

Dabarar da aka yi amfani da ita don ƙididdige babban rabon sikelin shine kamar haka: PMAG = girman firikwensin (mm) / filin gani (mm)

Nuna haɓakawa

Ana amfani da haɓakar nuni sosai a cikin ƙananan ƙwayoyin cuta. Girman nuni na abin da aka auna ya dogara da abubuwa guda uku: girman gani na ruwan tabarau, girman guntu firikwensin kyamarar masana'antu (girman farfajiyar manufa), da girman nuni.

Girman girman nuni = girman gani na ruwan tabarau × girman nuni × 25.4 / girman diagonal na rake

Babban nau'ikan ruwan tabarau na masana'antu

Rabewa

• Ta tsayin tsayin daka: babba da zuƙowa

•Ta hanyar buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗaɗɗen buɗewa da buɗaɗɗen buɗe ido

• Ta hanyar sadarwa: C interface, CS interface, F interface, da dai sauransu.

• Rarraba ta da yawa: ƙayyadaddun ruwan tabarau na haɓaka, ci gaba da ruwan tabarau na zuƙowa

•Mahimman ruwan tabarau da aka saba amfani da su a masana'antar hangen nesa sun haɗa da ruwan tabarau na FA, ruwan tabarau na telecentric da microscopes na masana'antu, da sauransu.

Babban abubuwan da dole ne a yi la'akari da su wajen zabar ana'urar hangen nesa ruwan tabarau:

1. Filin kallo, haɓakar gani da nisan aiki da ake so: Lokacin zabar ruwan tabarau, za mu zaɓi ruwan tabarau tare da filaye mafi girma fiye da abin da za a auna, don sauƙaƙe sarrafa motsi.

2. Zurfin buƙatun filin: Don ayyukan da ke buƙatar zurfin filin, yi amfani da ƙaramin buɗe ido gwargwadon yiwuwa; lokacin zabar ruwan tabarau tare da haɓakawa, zaɓi ruwan tabarau tare da ƙaramin ƙaranci gwargwadon yadda aikin ya ba da izini. Idan buƙatun aikin sun fi buƙata, Ina son zaɓar ruwan tabarau mai yankan tare da zurfin filin.

3. Girman firikwensin da dubawar kyamara: Misali, ruwan tabarau na 2/3" yana goyan bayan mafi girman girman rake na kyamarar masana'antu shine 2/3″, ba zai iya tallafawa kyamarori na masana'antu girma fiye da inch 1 ba.

4. Akwai sarari: Ba daidai ba ne ga abokan ciniki don canza girman kayan aiki lokacin da makircin ya kasance na zaɓi.