Canon - DO Diffractive Optics Lens CG

4,256 views · Published 8 February 2015 · 2:47 · Indexed 10 October 2026

Channel: ChristopherKblog · 2015 · Science & Technology

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DO (diffractive optics) lens elements enable telephoto lenses to be lighter and more compact while maintaining a high level of performance. Canon succeeded in creating the innovative DO lenses by bonding a precise diffraction grating to the surface of a glass lens. This video introduces the mechanics of DO lenses, highlighting the construction of dual- and triple-layer DO lenses.

Created : December 2004

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