aperture angle मीनिंग इन हिंदी

• किरणपुंज कोण • द् वा रक कोण • द्वारक कोण

aperture: छेद झिरी नोखा बिल
angle: कोना बंसी कोण कोना

Large aperture angles are difficult to design and lead to high prices.
The aperture angle is gaged symmetrically to the optical axis and has to be smaller than 180?
Practically one can achieve only aperture angles of about 140?for an objective lens, which corresponds to \ Omega \ approx 1.3 \ pi.