Meanings
nounSiemens star (plural Siemens stars)
plural Siemens stars
- A radial, sunburst-like test target used to measure the resolution and image quality of optical instruments, cameras, scanners, and printers.
Synonyms: spoke target
Synonyms & antonyms
nounA radial, sunburst-like test target used to measure the resolution and image quality of optical instruments, cameras, scanners, and printers.
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Also see
Origin
Developed in the 1930s by Siemens & Halske AG to test the lenses of their narrow-film cameras.
Full word history & related roots →Cite this entry
APA
Siemens star. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Siemens%20star
MLA
“Siemens star.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Siemens%20star. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Siemens star,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Siemens%20star.
Source: Siemens star on Wiktionary, CC BY-SA 4.0.