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nbsp;processes can also be used to pattern larger features like laser diode ridges and diffractive optical elements with unprecedented pattern fidelity and CD control. Canon has also announced it will begin shipping the EF 400mm f/4 DO IS USM lens, the world's first lens to incorporate Canon's exclusive "Multi-Layer Diffractive Optical Elements. Heptagon Oy, based in Helsinki, is a leading company in the field of micro-optics - with world-wide recognition for its expertise in the design and manufacturing of diffractive optical elements. |
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