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दूरबीन कैसे काम करता है? दूरबीन का आविष्कार

दूरबीन एक बहुत ही प्रभावशाली उपकरण है कि बहुत दूर वस्तुओं से पता चलता है के रूप में यदि वे हमारे पास थे. दूरबीनों आजकल आकार की एक किस्म में उपयोग किया जाता है. इसके अलावा छोटे दूरबीनों आप खिलौना स्टोर से उठा सकते हैं, वहाँ ऐसे हबल स्पेस टेलीस्कोप, जो वजन के टन है के रूप में किस्मों हैं. नमूना क्या एक प्रभावशाली उपकरण दूरबीन है, तो आप एक छोटी 20cm दूरबीन के साथ ८० मीटर दूर की एक लिखावट पढ़ सकते हैं.

 

वहाँ दुनिया में दूरबीन के दो प्रकार के होते हैं. चिंतनशील दूरबीनों ग्लास लेंस और दर्पण-लेंस प्रणाली का उपयोग कर. हालांकि दोनों तरीकों के साथ काम किया ही है, वे बहुत अलग तरीकों से काम करते हैं.

 

कैसे दूरबीन काम करता है समझने के लिए, आपको लगता है, क्यों नहीं हम लेख ८० मीटर दूर पढ़ सकते हैं? जवाब बहुत आसान है क्योंकि हमारे रेटिना पर incription के आकार बहुत छोटे और अस्पष्ट रहता है. अगर हम एक डिजिटल कैमरे के रूप में हमारी आँखों पर विचार, हम देख सकते हैं कि ८० मीटर की दूरी पर पूरी छवि से दूर कई पिक्सल के जारी रहेगा और काफी आकार है कि पढ़ा जा सकता से दूर है. अगर हम एक बहुत बड़ी नजर था, तो हम छवि के उस भाग पर ध्यान केंद्रित कर सकता है और लेख पढ़ा.

 

यही है दूरबीन काम कर तर्क की तरह है. लेंस ध्यान से आ रही प्रकाश को तोड़ने या दर्पण के साथ दर्शाते द्वारा कुछ बिंदु पर एकत्र की है और यह है कि यह बहुत अधिक लग रहा है पीछा किया है. लेंस मानव आँख में तय है, तो हम में या बाहर ज़ूम नहीं कर सकते हैं. हम क्या कर सकते हैं बस एक बिंदु पर ध्यान केंद्रित है.

 

जब हम अपने हाथ में एक आवर्धक काँच ले, हम वास्तव में आवर्धक लेंस और हमारे अपने आँख लेंस के बीच एक दूरबीन प्रणाली बनाते हैं.


 

यहाँ, लेंस से प्रकाश आँख लेंस में परिलक्षित होता है और छवि अब बढ़ाया है के रूप में यह छोटे लेंस में होता है.

 

दूरबीन दो बुनियादी सुविधाओं है, पहले कितनी अच्छी तरह यह प्रकाश हो जाता है, और बाद जानता है कि कितना छवि लेता है. ये भी पवित्रता, गुणवत्ता, खुरदरापन पर निर्भर है, और सबसे महत्वपूर्ण बात यह लेंस लेंस का आकार. लैंगर लेंस का इस्तेमाल किया है, बड़ा छवि प्राप्त की है.

 

इतिहास

दूरबीन पहली डच हंस Lippershey द्वारा १६०८ में inventered और सैन्य अंतरिक्ष में इस्तेमाल किया गया था. अपवर्तन के सिद्धांत के आधार पर, इस दूरबीन पहली खगोल विज्ञान में उपयोग करने के लिए है. वे lippershey और गैलिलियो उत्तल और conccave लेंस के संयोजन से मिलकर दूरबीनों का उपयोग कर रहे थे. १६११ में, केप्लर दूरबीन दो उत्तल लेंस का उपयोग कर विकसित का उपयोग करने के लिए शुरू कर दिया. इस केप्लर द्वारा विकसित प्रणाली का उपयोग दूरबीन अभी भी सबसे अच्छा कर रहे हैं.

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