Cov mis ntawm lub lens convex

Ua ntej kawm txog cov qauv ntawm lub lens convex, nkag siab txog cov cai ntawm lub cim lub lens convex cov hauv qab no ua ntej.

Cov Cai Kos Npe Lens Convex
- Qhov nrug ntawm yam khoom (s)
Yog tias ib yam khoom raug hla dhau, ib lub teeb ci ntsa iab los rau hauv qhov deb ntawm yam khoom cim tias zoo.
- Duab nrug (s')
Yog tias lub teeb ci ntsa iab hla dhau qhov ntxoov ntxoo ces qhov deb ntawm duab ntxoov ntxoo yog cim zoo (duab tiag tiag). Yog tias daim duab tsis dhau los ntawm lub teeb ces qhov deb ntawm duab ntxoov ntxoo lub cim tsis zoo (duab virtual).
- Qhov ntev ntawm lub zeem muag (f)
Thaum lub lens tig mus rau sab nraud ntawm lub teeb, qhov ntawd qhov ntev ntawm qhov muag Lub lens yog cim zoo. Ntawm qhov tod tes, yog tias qhov chaw tseem ceeb ntawm lub lens tsis dhau los ntawm lub teeb ci, ces qhov ntev ntawm qhov muag Lub lens yog cim tsis zoo. Lub ntsiab lus ntawm lub lens convex yog hla los ntawm lub teeb ci, yog li ntawd qhov ntev ntawm qhov muag lub lens convex yog qhov zoo.
- Qhov siab ntawm yam khoom (h)
Yog tias qhov khoom nyob saum toj ntawm lub axis ntawm lub lens convex ces qhov siab ntawm yam khoom lub cim zoo (khoom ncaj). Ntawm qhov tod tes, yog tias yam khoom nyob hauv qab lub axis ntawm lub lens convex ces qhov siab ntawm yam khoom lub cim tsis zoo (khoom tig rov qab).
- Qhov siab ntawm qhov ntxoov ntxoo (h')
Yog tias daim duab nyob saum lub axis ntawm lub lens convex ces qhov siab ntawm qhov ntxoov ntxoo lub cim zoo (duab ncaj). Yog tias daim duab nyob hauv qab lub axis ntawm lub lens convex ces qhov siab ntawm qhov ntxoov ntxoo lub cim tsis zoo (duab tig rov qab).
- Kev loj ntawm daim duab (m)
Yog tias daim duab loj dua 1 ces qhov loj ntawm daim duab loj dua qhov loj ntawm yam khoom. Yog tias qhov loj ntawm daim duab = 1 ces qhov loj ntawm daim duab zoo ib yam li qhov loj ntawm yam khoom. Yog tias qhov loj ntawm daim duab < 1 ces qhov loj ntawm daim duab me dua qhov loj ntawm yam khoom.
 
Cov Qauv Lens Convex
Saib daim duab hauv qab no. Muaj ob lub teeb ci ntsa iab mus rau lub lens convex, tom qab ntawd cov teeb ci raug refracted los ntawm lub lens convex.

Cov Lus Piav Qhia:
s = qhov deb ntawm yam khoom, s' = qhov deb ntawm daim duab, h = P P' = qhov siab ntawm yam khoom, h' = Q Q' = qhov siab ntawm daim duab, F₁ thiab F₂ = qhov chaw tseem ceeb ntawm lub lens convex.

Hauv lub teeb P'AQ', daim duab peb ceg P'AP zoo ib yam li daim duab peb ceg Q'AQ. Yog li:

Hauv lub teeb P'BF₂Q', daim duab peb ceg BF₂A = Q'F₂Q qhov twg qhov deb AB = qhov siab ntawm yam khoom (h) thiab qhov deb F₂A = qhov ntev ntawm lub lens convex (f) ntawm lub lens convex. Yog li:

Cov sab laug thiab sab xis ntawm cov qauv 1 thiab 2 yog sib npaug, yog li ntawd cov sab xis yog sib npaug:

Muab ob sab ntawm qhov sib npaug sib npaug los ntawm s':

Kev piav qhia txog cov mis:
s = qhov deb ntawm yam khoom (zoo yog tias yam khoom ntawd raug lub teeb ci ntsa iab dhau)
s' = qhov nrug ntawm daim duab ntxoov ntxoo (zoo yog tias daim duab ntxoov ntxoo raug hla los ntawm lub teeb lossis daim duab ntxoov ntxoo yog tiag)
f = qhov ntev ntawm lub lens (zoo yog tias lub teeb ci ntsa iab dhau los ntawm qhov chaw ntawm lub lens convex)
Nco ntsoov nco ntsoov txoj cai ntawm lub lens convex thaum siv cov mis no los daws cov teeb meem ntawm lub lens convex.

Kev Loj Hlob Duab (m)
Saib daim duab ntawm qhov tsim ntawm tus duab ntxoov ntxoo ntawm yam khoom saum toj no. Cov duab peb ceg PAP' thiab QAQ' zoo sib xws, yog li peb tuaj yeem tau txais kev sib raug zoo ntawm qhov deb ntawm yam khoom thiab qhov deb ntawm tus duab ntxoov ntxoo nrog qhov siab ntawm yam khoom thiab qhov siab ntawm tus duab ntxoov ntxoo:

Cov mis saum toj no tuaj yeem rov sau dua raws li hauv qab no los ntawm kev ntxiv lub cim m:

Cov Ntaub Ntawv:
m = kev loj ntawm daim duab
h = qhov siab ntawm yam khoom (zoo yog tias yam khoom nyob saum lub axis tseem ceeb ntawm lub lens convex lossis yam khoom ncaj)
h' = qhov siab ntawm daim duab (tsis zoo yog tias daim duab nyob hauv qab lub axis tseem ceeb ntawm lub lens convex lossis daim duab tig rov qab)
s = qhov deb ntawm yam khoom (zoo yog tias yam khoom ntawd dhau mus lub teeb ci ntsa iab tuaj)
s' = qhov deb ntawm daim duab (zoo yog tias daim duab raug hla dhau) lub teeb ci los yog daim duab tiag tiag)
 
Cov Lus Nug Piv Txwv Txog Convex Lens
Kawm piv txwv ntawm cov lus nug txog lub lens convex yog li koj thiaj nkag siab zoo dua txog kev siv cov mis convex lens.

Cov Lus Nug Txog Kev Xyaum Siv Convex Lens
Ua nws Cov lus nug txog kev xyaum ua lub lens convex yog li koj thiaj li txawj ntse dua ntawm kev daws teeb meem convex lens.