Ars Seiki Kōgyō K.K. (アルス精機工業㈱, meaning Ars Precision Industries) was a Japanese company, whose name appeared in mid 1952 as the maker of the Tomy camera with Z-shaped light path, designed by Sakurai Minoru (桜井実). The production of the Tomy was soon taken over by Zuihō Kōgaku Seiki. It seems that the Zuihō company was already active before that date, and was not a renaming of Ars Seiki (see Zuihō).
- Asahi Camera (アサヒカメラ) editorial staff. Shōwa 10–40nen kōkoku ni miru kokusan kamera no rekishi (昭和10–40年広告にみる国産カメラの歴史, Japanese camera history as seen in advertisements, 1935–1965). Tokyo: Asahi Shinbunsha, 1994. ISBN 4-02-330312-7.