| 释义 |
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]. 1906Chambers's Jrnl. May 416/2 This layer..is re-covered with yet another layer of panchromatic, and sensitised. 1921Glasgow Herald 6 Apr. 7 My dark-room lamp has three interchangeable safe-lights,..one a dark green for panchromatics. 1952Proc. 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. 1978SLR 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.
1971J. McClure Steam Pig iii. 39 The poser of the panchromatic panties. 1975M. Kenyon Mr Big xix. 180 Two boisterous black girls in patched panchromatic trousers.
Hence panˈchromatize v. trans., to render panchromatic; panˈchromatizing vbl. n.
1922E. 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. 1960K. 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. |