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Jak funguje dalekohled? Vynález dalekohledu

Dalekohled je velmi působivý nástroj, který ukazuje velmi vzdálené objekty, jako by byly blízko nás. Teleskopy se dnes používají v různých velikostech. Kromě malé teleskopy si můžete vyzvednout z obchodu s hračkami, tam jsou odrůdy, jako je Hubble Space dalekohled, který má tuny hmotnosti. Chcete-li vzorkovat, co působivé zařízení dalekohled je, můžete si přečíst rukopis 80 metrů daleko s malým 20cm dalekohled.

 

Existují dva typy dalekohledu na světě. Reflexní dalekohledy pomocí skleněné čočky a systému zrcadlo-čočka. I když práce prováděná s oběma metodami je stejná, pracují ve velmi odlišných způsobech.

 

Chcete-li pochopit, jak dalekohled funguje, musíte myslet, proč si nemůžeme přečíst článek 80 metrů daleko? Odpověď je velmi jednoduchá, protože velikost incription na naší sítnici zůstává velmi malý a nečitelný. Pokud budeme uvažovat naše oči jako digitální fotoaparát, můžeme vidět, že text na 80 metrů od celého obrazu bude trvat několik pixelů a je docela daleko od velikosti, které lze číst. Kdybychom měli mnohem větší oko, pak bychom se mohli zaměřit na tuto část obrazu a přečíst si článek.

 

To je jak pracovní logika dalekohledu je. Světlo přicházející z čočky zaměření je shromažďovány v určitém okamžiku lámání nebo odrážející se zrcadly, a to je následovalo, že to vypadá mnohem více. Objektiv je stanovena v lidském oku, takže nemůžeme přiblížit nebo oddálit. Co můžeme udělat, je soustředit se jen na bod.

 

Když jsme se zvětšovací sklo v ruce, jsme vlastně vytvořit dalekohled systém mezi zvětšovací čočky a naše vlastní oční čočky.


 

Zde se světlo z objektivu se odráží v oční čočky a obraz je nyní zvětšený, jak se vyskytuje v malém objektivu.

 

Dalekohledy mají dvě základní vlastnosti, první je, jak dobře se dostane světlo, a ten ví, jak moc obrázek to trvá. Ty také závisí na čistotu, kvalitu, drsnost, a co je nejdůležitější velikost čočky objektivů. Langer objektiv se používá, tím větší je obraz získat.

 

Historie

Dalekohled byl poprvé inventered holandským Hansem Lippershey v 1608 a používán ve vojenském prostoru. Na základě principu lomu je tento dalekohled prvním, který se používá v astronomii. Oni používali dalekohledy skládající se z kombinace Lippershey a Galileo konvexní a conccave čočky. V 1611, Kepler začal používat dalekohled vyvinutý pomocí dvou konvexních čoček. Teleskopy používající tento systém vyvinutý Kepler jsou stále nejlepší.

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