Question 1

Is “Diffraction Grating” in the public domain?

Accepted Answer

Yes. “Diffraction Grating” is public domain and released under CC0, so it is free to download and reuse for any purpose, including commercially, with no permission needed.

Question 2

Who created “Diffraction Grating”?

Accepted Answer

Rowland, Henry A. (1884).

Question 3

Where is “Diffraction Grating” from?

Accepted Answer

It is catalogued from the open collection of Smithsonian Open Access and is free to reuse under CC0.

Question 4

Can I use “Diffraction Grating” commercially for free?

Accepted Answer

Yes. As a CC0 public-domain work it can be used commercially, modified and redistributed with no fee and no attribution required.

Title	Diffraction Grating
Artist	Rowland, Henry A.
Date	1884 19th century
Medium	overall: 3 cm x 12 cm x 12.5 cm; 1 3/16 in x 4 23/32 in x 4 29/32 in
Classification	diffraction grating
Origin	United States: Maryland, Baltimore United States: Maryland
Holding institution	Smithsonian Open Access
Credit line	U.S. Military Academy
Rights	Public domain (CC0)

Diffraction Grating

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