File:Diffraction grating.jpg

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Diffraction_grating.jpg ‎（400 × 266 像素，檔案大細：35 KB ，MIME類型：image/jpeg）

摘要

描述
English: World's largest multilayer dielectric diffraction grating in 2005.
中文：世界上最大的多层电介质衍射光栅（2005年）
日期 2005年4月8號 (original upload date)
來源 Transferred from en.wikipedia to Commons. Transfer was stated to be made by User:GcG.
作者 The original uploader was Deglr6328 at 英文 維基百科.

協議

Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

[[:en:Title {{{1}}} of the United States Code|{{{1}}} U.S.C.]] § {{{2}}}

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2005-04-08 02:43 Deglr6328 400×266×8 (35602 bytes) World's largest multilayer dielectric diffraction grating. {{PD-USGov}}

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成立日

8 4 2005

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