panchromatic, a.
(pænkrəˈmætɪk)
[f. pan- + chromatic a.]
1. Photogr. Sensitive (though not equally so) to light of all colours in the visible range. Also ellipt., a panchromatic emulsion or plate.
| 1903, etc. [see orthochromatic a. 1]. 1906 Chambers's Jrnl. May 416/2 This layer..is re-covered with yet another layer of panchromatic, and sensitised. 1921 Glasgow Herald 6 Apr. 7 My dark-room lamp has three interchangeable safe-lights,..one a dark green for panchromatics. 1952 Proc. R. Soc. Edin. A. LXIII. 206 The usual type of orthochromatic emulsion is a little slow to this radiation, but a panchromatic emulsion might record some red. 1978 SLR Camera Aug. 82/1 Panchromatic film—the type almost exclusively used these days for normal photography—..is very much more sensitive to blue and blue-green, than the eye, but less sensitive to green, yellow and orange. |
2. = polychromatic a.
| 1971 J. McClure Steam Pig iii. 39 The poser of the panchromatic panties. 1975 M. Kenyon Mr Big xix. 180 Two boisterous black girls in patched panchromatic trousers. |
Hence panˈchromatize v. trans., to render panchromatic; panˈchromatizing vbl. n.
| 1922 E. J. Wall Pract. Color Photogr. ii. 15 Many dyes have been suggested for panchromatizing. 1925 ― Hist. Three-Color Photogr. vii. 246 A. Miethe recommended the following mixture for panchromatizing plates. 1960 K. M. Hornsby tr. P. Glafkidès' Photogr. Chem. II. xxxv. 729 To make them [sc. photographic emulsions] sensitive to the other colours, green, yellow, red and infra red—or to ortho- or panchromatize as we say—it is necessary to incorporate certain special dyes. |