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Edmund Optics announces Concave Blazed Holographic Gratings Edmund Optics' newly released Concave Blazed Holographic Gratings greatly simplify system design and system integration, allowing for more compact and sensitive instrumentation. They are formed on concave precision glass substrates, enabling them to serve as both the primary dispersive element and the primary focusing element. Available with groove densities ranging from 265/mm to 800/mm, they are aberration corrected to eliminate astigmatism.
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