Lub koob yees duab loj tshaj plaws tuaj yeem ua kom pom qhov tshwm sim los ntawm qhov tseem ceeb ntawm 35. Piv nrog rau lub koob yees duab nruab nrab ntawm lub koob yees duab zoo tib yam, nws muaj qhov loj ntawm 6 ~ 7 zaug, thiab cov duab pom tseeb heev, uas yog tsim rau kev soj ntsuam cov noog qus lossis lwm yam scenes. . Lub 7 × 50 engraved rau ntawm lub chim sawv cev rau 7x magnification, thiab lub hom phiaj lens muaj ib txoj kab uas hla ntawm 50 mm.
Daim ntawv thov lub neej
Birdwatchers feem ntau siv lub koob yees duab los ua cov khoom nyob deb, xws li noog, tshwm loj dua. Lub koob yees duab binocular yog qhov tseeb tsuas yog ob lub tsom iav, nrog txhua lub qhov muag saib ntawm ib sab. Muaj ntau yam prisms (daim duab peb sab iav) zigzag reflections ntawm lub teeb, ua binocular telescopes luv dua li monoculars; Lub prism kuj ncaj cov duab nce thiab nqis. Nrog lub koob yees duab binocular koj tuaj yeem txiav txim qhov kev ncua deb ntawm ob lub qhov muag tib lub sijhawm, tab sis tsis yog nrog lub monocular.
Tub rog binocular telescope
Tub rog binocular telescopes yog raws li Kepler telescopic optical system thiab ntxiv rau cov duab rotation system (feem ntau yog siv prism los tig cov duab). Lub lens chim tej zaum yuav nruab nrog ib tug photosensitive lub peev xwm los ntes cov hom phiaj nrog infrared qhov chaw. Feem ntau, qhov kev ncua deb ntawm qhov muag yog 54mm txog 74mm, qhov pom qhov loj ntawm cov khoom siv tes tuav yog 6x txog 15x, thiab hom khib-mounted yog 20x-40x. Kev ua haujlwm kho qhov muag ntawm lub tshuab tsom iav tsom iav feem ntau tau qhia hauv ob pawg ntawm tus lej × D.
Cov lus qhia txog science
Astronomical toj roob hauv pes Vajtswv ntawm Tsov rog lub hli, kev soj ntsuam binoculars yuav zoo dua.