Soj ntsuam cov cuab yeej siv hluav taws xob ua kom zoo. Txhawm rau xaiv cov tsom iav, nws yog qhov yuav tsum paub lub hauv paus thiab tsim qauv, uas, feem ntau, tsis qhia nyob rau hauv cov ntaub ntawv xa nrog, suav nrog qee cov yam ntxwv kho qhov muag, qhov tsis sib txawv uas ua rau muaj kev phom sij rau kev noj qab haus huv ntawm cov neeg saib.
Piv txwv, cov yam ntxwv zoo li no:
- qhov txawv ntawm magnification;
- parallelism ntawm beams emanating los ntawm eyepieces;
- qhov sib txawv ntawm cov ces kaum thaum tig daim duab nyob rau sab laug thiab txoj raj.
Raws li kev cai lij choj, cov tuam txhab tsim khoom yuav tsum muaj lub luag haujlwm kom ntseeg tau tias lawv cov khoom muaj kev nyab xeeb muaj txiaj ntsig kev nyab xeeb rau qhov kev teev tseg tshwj xeeb ntawm binoculars.
Yuav pib nrog, koj yuav tsum paub txog cov tsom iav twg koj xav xaiv, rau dab tsi xav tau koj yuav xav tau lawv.
Ib qho ntawm cov khoom tseem ceeb thaum xaiv cov khoom siv hluav taws xob zoo no yog kev khiav hauj lwm kub ntawm cov tsom iav, uas nws tseem ua haujlwm tau. Cov neeg tsim khoom siv ntawm cov khoom siv ntawd yuav tsum tau qhia cov yam ntxwv ua tau hauv cov ntaub ntawv xa nrog ua ke.
Qhov thib ob yam thaum xaiv cov khoom yog cov khoom siv los ntawm lub cev ua haujlwm ntawm cov cuab yeej hluav taws xob tau ua. Cov tsom iav tau zoo yog tsim los ntawm lub teeb hlau alloys (magnesium, txhuas, thiab lwm yam), tab sis tib lub sijhawm, koj tuaj yeem nrhiav binoculars ntawm cov lag luam ua los ntawm fiberglass, ntau hom plastics, thiab lwm yam.
Yog li qauv uas koj yuav tsum xaiv?
Cov khoom siv kho qhov muag tau ua los ntawm cov yas muaj ntau dua ntais, uas yooj yim dua rau kev siv. Tab sis, koj yuav tsum paub hais tias tam sim no feem ntau ntawm cov yas tsis tuaj yeem ua tau zoo dua li cov hlau hlau hauv qhov ua kom muaj kev ntseeg tau thiab kub hloov pauv. Yog li no, hais txog qhov hloov kub nyob hauv Lavxias, cov tuam ntxhab tsis tso tseg cov rooj plaub uas ua los ntawm cov hlau.
Nws tseem yuav tsum paub tias binoculars yog cov khoom lag luam ntawm kev siv mus sij hawm ntev, thiab koj yuav tsum paub tus neeg yuav ua kev tsis txaus siab txog qhov zoo thiab tshem tawm dawb ntawm qhov tsis xws luag. Yog li no, tus muag khoom yuav tsum muab cov ntawv pov thawj rau koj thiab lees paub tias cov cuab yeej koj tau yuav muaj cov yam ntxwv tsim nyog.
Yog li, hauv tsab xov xwm no koj tau pom yuav luag tag nrho cov yam ntxwv ntawm binoculars, sau tseg cov tsis zoo uas cuam tshuam rau kev noj qab haus huv, tau piav qhia txog tus yam ntxwv tsis zoo. Peb vam tias qhov no yuav pab koj xaiv cov tsom iav uas koj xav tau.
