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Barlow: Product ga tlhaloso

Barlow ke e 'ngoe ea kathoko ho fetisisa ratoa ka matsoho a litsebi tsa linaleli, bobeli litsebi le tsenwe. Ho ke ke bohlokwa ka boemong ena ea mosebetsi. sesebediswa sena e bonolo ka sebopeho concave lense (mpe), e leng haholo eketsa magnification atlehang oa sebonela-hōle sa. elements ena e ile ea qaptjoa ka XIX lekholong la lilemo la setsebi sa lipalo Peter Barlow. Ka hona ho lebitso la sesebediswa sena.

dikopo sehlahisoa

Ka lebaka versatility lona, Barlow lense e haholo ho pharaletseng sebelisoa ka litsebi tsa linaleli tsa mangolo a thuto a fapaneng. Le sesebediswa sena u ka phetha e lebetsoeng le khoneha ho eketseha ha ntho e hlokometse ka sebonela-hōle sa. thepa ena ea bohlokoa. Mohlala, Barlow 2x lense ha tsamaisa e pakeng tsa eyepiece ea sebonela-hōle le ho lense, e fana ka molao-motheo 100x magnification eketsa palo ho 200x. Empa e le e molemo keketseho e itšetlehile ka botsitso le sepakapakeng maemo a, ho sebelisa o ile a re sehlahisoa hase kamehla ho 'nete. Ka mohlala, haeba ka magnification tsa 100x airflows setšoantšo fifatsa, ho Barlow lense, palopedi boemo ba mo e ka nnang ya ho 200x, e tla feela mpefatsa boemo. The atlehang ka ho fetisisa ke ea ho sebelisa sesebelisoa sena hammoho le e khutšoanyane-a tsitsinkela sebonela-hōle. Sesebediswa Barlow lense tla fana ka bokgoni haholo ka lebaka la hore le libonela-hōle o ile a re ba felle fetoha le maemo, kaha ba li sebelisoa molao-motheo eyepieces khutšoanyane tsepame. Barlow le eena e le sesebelisoa bohlokoa haholo bakeng sa ho hapa lipolanete ka filimi kapa khamera tsa digital.
E fana ka monyetla oa ho "hula" le lintlha tse nyenyane, kapa Nyenyefatsa ho ka setšoantšo. Ka lebaka la botenya ba nyenyane tsa khalase ka leseli tseleng boleng lense tla fana ka lebaka lekanang feta boqapi ba ka eyepiece ho photodetector ka.

seriti

Ka ba molemo ho se seholo sa sesebediswa sena ke hore ho eketsa ka tjhelete e ya magnification fumaneha. Ka mohlala, haeba litsebi tsa linaleli li efe kapa efe eyepieces tse 10 limilimithara, 18 limilimithara, 26 limilimithara, ka ho ba teng Barlow 2x joalokaha ho atolosa e instrumentny fana disebediswsa tsena 5 limilimithara, 9 limilimithara le 13 limilimithara. Ho litšenyehelo tabeng ena. Ka mantsoe a mang, e Barlow lense ka nka sebaka tse tharo tsa eyepiece ena.

fapafapana

The le lilense atileng ka ho fetisisa Barlow ne habeli (2x). Leha ho le joalo, ho eketsa ho wage ho tswa ho ya data ya hlahiswa ho lihlahisoa letsatsi e sa tšoaneng haholo. 3x Barlow lense ho tloaelehile haholo, 'me 4x, le 5x,' me ka boela ka fumana 1.5x le 2.5x. Ho na le dikai le magnification polygonal tloha 2 ho 3. Thatafatsa tshebediso ya le lilense tsena ka e sa lekaneng phahameng tlosoe sebonela-hōle tsepame.

Lekgotla la

Ka tlhopho ya hlokahala Barlow lense ho sebonela-hōle sa le teng, hloko ka ho khetheha ba lokela ho ho leshwa ho bophara ba lulisa sleeve. boholo ba eona ka 'na ba 0,965, 1,25 kapa 2 lisenthimithara tse. Ho lokela ho ba le tsoanang ho bophara ba focuser le landings eyepieces. E le hore ho fumana e 'meli-lesaka magnification sebelisa Barlow 2, ho ke ke ho hlokahala hore ho lokisetsa seipone pakeng tsa diagonale le eyepiece. lihlahisoa tsena ha e le hantle ya boleng bo phahameng ba lokela ho tsebo le sebakeng se loketseng ho lokela ho ba selotlolo mekhahlelo.

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