English Explanatory Dictionary

Siemens star

English dictionary entry

Meanings

noun
  1. A radial, sunburst-like test target used to measure the resolution and image quality of optical instruments, cameras, scanners, and printers.

Word forms

Siemens star Siemens stars

Etymology

Developed in the 1930s by Siemens & Halske AG to test the lenses of their narrow-film cameras.

Synonyms

spoke target
This entry uses open data from Wiktionary (CC BY-SA/GFDL). Word forms are used for search and are not indexed as separate pages.
Back to search All on S Russian dictionary Dahl dictionary