Barlow: Product Musammantawa

Barlow ne daya daga cikin rare m kan makamai na ilmin Taurari, duka biyu masu sana'a da kuma mai son. Yana da muhimmanci a wannan fanni na aiki. Wannan na'urar ne mai sauki a cikin siffar concave ruwan tabarau (korau), wanda muhimmanci ƙara da tasiri magnification na kawo nesa kusa. Wannan kashi da aka ƙirƙira a cikin XIX karni lissafi Bitrus Barlow. Saboda haka sunan wannan na'urar.

samfurin aikace-aikace

Saboda ta versatility, Barlow ruwan tabarau ne quite yadu amfani da ilmin Taurari da daban-daban cancantar. Tare da wannan na'urar za ka iya gudanar da wani matsakaicin yiwu karuwa a cikin abu da cewa an kiyaye ta kawo nesa kusa. Wannan muhimmanci dukiya. Alal misali, Barlow 2x ruwan tabarau a lokacin da ajiye shi tsakanin eyepiece na nesa kusa da ruwan tabarau, bada wani misali 100x magnification qara adadi to 200x. Amma kamar yadda amfani da karuwa dogara da kwanciyar hankali da kuma na yanayi yanayi, da yin amfani da ce samfurin ne ba ko da yaushe gaskiya. Alal misali, idan a wata magnification na 100x airflows image blur, da Barlow ruwan tabarau, anya da matakin na kimantawa zuwa 200x, za kawai tsananta halin da ake ciki. A mafi inganci shi ne yin amfani da wannan na'urar a hade tare da wani short-mayar da hankali nesa kusa. Na'ura Barlow ruwan tabarau zai ba babba yadda ya dace saboda gaskiyar cewa ya ce nesa sun iyakance sassauci, tun suna amfani da daidaitattun short-mayar da hankali eyepieces. Barlow kuma shi ne wani ba makawa ga kayan aiki da kamawa da taurari a kan fim ko dijital kamara.
Yana samar da wata dama ga "ja" da kananan details, ko zuƙowa a kan image. Saboda karami kauri da gilashin a kan haske hanyar ingancin ruwan tabarau zai ba a daidai sakamakon fiye da tsinkaya ta cikin eyepiece zuwa photodetector.

girma

Babban amfani da wannan na'urar ne cewa shi qara adadin samuwa magnification. Alal misali, idan wani Masana ilmin eyepieces ne 10 mm, 18 mm, 26 mm, a gaban Barlow 2x kamar yadda yana faɗaɗa shi instrumentny samar da wadannan na'urori zuwa 5 mm, 9 mm da kuma 13 mm. Shi ne tattali a cikin wannan harka. A wasu kalmomin, wata Barlow ruwan tabarau zai iya maye gurbin uku na eyepiece.

bambancin

Mafi na kowa ruwan tabarau Barlow ya sau biyu (2x). Duk da haka, kara multiplier daga data samar zuwa kwanan kayayyakin ne sosai bambancin. 3x Barlow ruwan tabarau ne quite na kowa, da kuma 4x, kuma 5x, kuma za a iya samunsa 1.5x da 2.5x. Akwai model tare da m magnification daga 2 zuwa 3. Wahalad da yin amfani da wadannan ruwan tabarau iya ba isasshe high kau na nesa kusa mayar da hankali.

Majalisar

A selection na zama dole Barlow ruwan tabarau zuwa nesa kusa samuwa, musamman hankali ya kamata a biya zuwa diamita na saukowa hannun riga. ta size iya zama 0,965, 1.25 ko 2 inci. Yana dole ne m ga diamita na focuser da landings eyepieces. Domin samun wani biyu Musulunci magnification amfani Barlow 2, wajibi ne a gabatar da wani madubi tsakanin diagonal da eyepiece. Wadannan kayayyakin ne da gaske daga high quality kamata a wayayyu kuma fi dacewa da shi ya zama Multi-mai lebur.