Homeliness, Tools le thepa
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.
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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