Kev siv quasi-focus helix hauv optical microscope
Siv cov ntsia hlau quasi-focus los kho qhov ntev ntawm lub focal ntev thiab nrhiav cov duab khoom tuaj yeem hais tias yog kauj ruam tseem ceeb tshaj plaws ntawm kev siv lub tshuab tsom, thiab nws kuj yog kauj ruam nyuaj tshaj plaws rau cov tub ntxhais kawm. Cov tub ntxhais kawm muaj kev ua yuam kev hauv qab no hauv kev ua haujlwm: ib qho yog los kho qhov tsom ncaj qha nyob rau hauv lub lens loj; Thaum nws ncav cuag 2 mus rau 3 cm, nws tseem raug kho kom siab, thiab qhov ceev ntawm tig lub quasi-focus ntsia hlau yog ceev heev. Thawj ob hom kev ua yuam kev feem ntau ua rau lub hom phiaj lens cuam tshuam nrog cov mounting zaj duab xis thiab ua rau lub mounting film lossis lens puas, thaum qhov yuam kev thib peb yog qhov tshwm sim feem ntau thaum cov tub ntxhais kawm siv lub tshuab tsom. Nyob rau hauv cov lus teb rau qhov yuam kev saum toj no, tus kws qhia ntawv yuav tsum tau hais qhia rau cov tub ntxhais kawm tias qhov kev hloov ntawm focal ntev yuav tsum tau ua nyob rau hauv qis magnification, ua ntej tig lub ntxhib thiab raug ntsia hlau ntsia hlau, kom lub lens chim maj mam nqis, thiab lub hom phiaj lens. nyob ze ntawm lub iav swb, tab sis yuav tsum ceev faj kom tsis txhob cia lub hom phiaj lens kov lub iav swb Nyob rau hauv cov txheej txheem no, lub qhov muag yuav tsum saib lub hom phiaj lens ntawm sab, thiab tom qab ntawd ntsia rau hauv lub qhov muag nrog rau sab laug qhov muag, thiab maj mam kho. Lub coarse quasi-focus ntsia hlau nyob rau hauv thim rov qab, yog li ntawd lub lens chim maj mam nce mus txog rau thaum cov duab pom, thiab nyob rau tib lub sij hawm taw tes rau cov me nyuam kawm ntawv Nws qhia tau hais tias cov khoom nyob deb ntawm ib tug dav microscope yog hais txog 1 cm, yog hais tias tus Qhov deb ntawm cov khoom yog nyob deb tshaj 1 cm, tab sis cov khoom duab tseem tsis pom, nws yuav yog tias cov qauv tsis nyob rau hauv qhov kev pom lossis qhov ntxhib thiab qhov tseeb tsom helix tig nrawm dhau, thiab koj yuav tsum kho nws lub sijhawm no. . Nruab cov yeeb yaj kiab txoj haujlwm, thiab tom qab ntawd rov ua cov kauj ruam saum toj no. Thaum cov khoom tsis pom kev tshwm sim nyob rau hauv lub zeem muag, nws yog ib qho tsim nyog yuav tsum tau hloov mus rau qhov kev hloov kho kom pom tseeb zoo. Tsuas yog nyob rau hauv txoj kev no tuaj yeem ua rau qhov kev tshawb nrhiav tau nqaim thiab qhov nrawm ntawm kev nrhiav khoom tuaj yeem nce ntxiv.
