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Products > same > Albrighter Technology CO.,Ltd. | Similar Products
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BK7 Double Concave Lens

BK7 Double Concave Lens
Double concave lens is similar with plano concave lens. The focus length is negative. It can make parallel light diverge outside. The two sides have same radius of curvature. Double convex lens ...

Holographic Grating

Holographic Grating
more stray light, and so on. The holographic grating is not easy to produce blaze, and the efficiency is lower compared with the ruled grating. But when the ratio of scribed width to wavelength is ...
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