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photo-matrix
photo-matrix n.
Brit. 
/ˌfəʊtə(ʊ)ˈmeɪtrɪks/
, /ˌfəʊtə(ʊ)ˈmeɪtrɪks/U.S. /ˌfoʊdoʊˈmeɪtrɪks/
Typography (any of) a set of photographic images of characters used in electronic typesetting./ˌfoʊdoʊˈmeɪtrɪks/ΘΚΠ
society > communication > printing > type founding > type-founding equipment > [noun] > matrix > set of photographic images of characters
photo-matrix1958
1958 Bookseller 22 Feb. 948/1 Penguins make history in March by publishing the first book produced in England entirely without the use of metal type... In this new method of composition ‘photo-matrices’ are assembled into lines on a normal keyboard.
1987 Chicago Tribune 18 Dec. vii. 130/5 My original photo matrices serve as the warp on which I weave my complex images.
2002 P. Baines & A. Haslam Type & Typogr. iv. 85/1 This established the practicality of imaging characters stroboscopically from a continuously-spinning photo-matrix disc.
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