Ho bokella lense

Lens - bonaletsang 'mele eo e potapotoeng ke bokaholimo ba babeli chitja. The tšobotsi ka sehloohong ke bokhoni ba lense ho fa bafo ba setšoantšo. Ba e ka ba inahanelang le ea sebele, inverted le otlolohileng, fokotswa le e atolositsoeng. Litekanyo guttate tsa liphetoho setšoantšo ho itšetlehile ka sebaka seo lintho.

Shebela lense - karo-karolelano ea setšoantšo guttate le boholo Sepheo. The magnification Ntlha e (K) ka ho bontšoa ke moralo wa: K = appa / v Le, moo appa ke hole ho tswa ho lense ho Sepheo, 'me v Le - hole ho tswa ho lense ho setšoantšo. The magnification Ntho e ke tekanyo ea litekanyo kamoo guttate ha ntho e kholoanyane kapa nyenyane boholo setšoantšo.

Ka saense, ho na le lintho tse kang ho bokella lense le li arohanang. Pele motenya bohareng ebe se thinner ho bohale, e le la bobeli - tsohle ka fapana le moo. lilense li tšoauoa ka e-ba bolelele tsepamiso (ho tloha bohareng Optical ho ntlha tsepamiso: ka lense li arohanang, e mpe, 'me ka ho bokella - positive,), le le matla a Optical e lekanngoa ka diopters. Bolelele tsepamiso ea mitha e mong e 1 diopter. Le matla a Optical itšetlehile ka kotlobane radii ba chitja bokaholimo lense, 'me boitsebiso bo (refractive index of e) ho tswa ho e entsoeng. Ke karabo ya go arola ba bolelele tsepamiso.

Ho bokella lense e khetholloa tloha hasanya:

1. Bokella leseli.

2. The molekeng oa bohareng thinner.

3. Ke pokello ea palo e khōlō ea ho atolosa bohareng tsa lense (empa ke ke ho metshetshe) ya diporisimi ea kgutlotharo.

4. a tsitsinkela lense (ke hore, ntlha ea motsoako ya mahlaseli mora refraction, teng ka ka sehloohong a selekane Optical), ke ea sebele (e seng la litoro), jwalo ka mahlaseli intersect bona, ho ena le ho tsoela pele ho tsa bona.

5. le matla a ho bokella mahlaseli ketsahalo holim'a metsi nako e 'ngoe, e leng e teng ka lehlakoreng le leng la lense.

6. Ho bokella lense ka tataisoang le taba ke mokha oa leha e le efe, 'me moo libalaka li tla bokana, kaha e joalo e lense na a tsitsinkela tse peli. Ka a selekane Optical ea ka pele le ka morao foci leng teng ka lehlakoreng la ka lona ka hole tsepamiso ho tswa ho lense ka sehloohong ntlha.

Thepa le lilense

• quartz khalase. Ee buellang e phahameng mocheso ho hanyetsa le kgonothebolo mahlaseli mahlaseli. Joalokaha e inert ho lik'hemik'hale tse ngata;

• silicon e. boitsebiso boo kopanya phahameng hasana ho ba le e kholo boleng feletseng tsa refractive index ea ka mefuta e fapaneng ya mahlaseli a go la la, opacity feletseng ka mefuta e fapaneng e bonahalang ea a manyenyane ka;

• manyolo polymers. Ke fetola ho ka etsahala ho bopa theko e tlaase le lilense aspherical, tse sebelisoa mehleng ea morao tjena. Bonolo ho ikopanya le lilense li sebelisoa ophthalmology, li entsoe ka thepa e le mofuta biphasic. Silicone-gidrolievye e lumellang metsi ho kena linzyblagodarya oksijene le phahameng hydrophilic thepa ea motswako wa ka sebelisoa a sa khaotse a khoeli;

• lintho tse ling.

mefuta ya le lilense

Ho bokella le lilense tse arotsoe ka mefuta e 3:

• biconcave;

• Plano-khonvekse;

• e concave-khonvekse.

lilense ha namela libakeng tse ba boetse ba aroloa ka mefuta e 3:

• biconcave;

• Plano-concave;

• khonvekse-concave.

lilense e ka ba tse bonolo, 'me ka ho kopantswe tloha' maloa - ho haha ba bang ba ea mofuta ofe tsamaiso ea rarahaneng Optical. Lens tsamaiso, o ile a lokisetsa hōjana, bao lilepe tsamaisane le bitsoa boithati.

The tshebediso ya le lilense

Ba hlokahalang bakeng sa tlhahisong ea libonela-hōle, microscopes, binoculars, lik'hamera, projectors, libaka Optical , joalo-joalo lilense li sebelisoa haholo ka ophthalmology, e le ho hlokahala hore batho ba nang le bokooa Pono kang myopia le hyperopia. Ho feta moo, e le 'ngoe ho bokella lense e sebelisoa e le phahamise khalase.