The penta prism employs reflection off two surfaces to deviate a light beam by 90°. Prism configurations include the penta roof, which reverses the parity of the image. The functions of penta prism in a camera are very essential.
Sapphire window is the hardest oxide crystal, is the basic single crystal form of aluminum oxide (Al2O3).
a. Quick Delivery
b. Thin Thickness
c. Economic Price
d. Large Dimension
Parabolic mirrors are mirrors where a cross section through the optical surface has the shape of a parabola.
a. Telecopes Application
b. High Accuracy
c. Large Size
d. Doctocr Wang Design
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