D50灯管的色温为5000K被世界印刷业公认为标准色温(
ICC标准),通常运用在印刷或前置出版的领域。其条件恰与白天阳光下相近,色彩虽比较正常,但不容易发现黄墨的变化,故较适合于观看原稿。其品牌有:
PIHLIPS,通用
GE,
OSRAM,格林达 麦克贝斯 GretagMacbeth,
GTI等。产品符合国际标准化组织(
ISO)在
2000年对标准观察环境和标准光源做出了规定,即
ISO3664:2000标准。
欧司朗D50灯管L18W/950 L36W/950标准光源灯管
GE
F20T12-C50-ECO 5000K
GE
F40C50/ECO/UPC 5000K
GretagMacbeth
F20T12/50 5000K 20W Made in Canada
GretagMacbeth
F40T12/50 5000K 20W Made in Canada
PHILIPS
TL-D 90 DE LUXE 18W/950 Made in Holland
PHILIPS
TL-D 90 DE LUXE 36W/950 Made in Holland
PHILIPS TL-D 90 Graphica 18W/950 Made in Holland
PHILIPS
TL-D 90 Graphica 36W/950 Made in Holland
PHILIPS
TLD 58W/950 (
60")
T8 Made in Holland. OSRAM L18W/950 COLOR proof
OSRAM L36W/950 COLOR proof
Just Daylight 5000 ProGraphic
Graphiclite 100 F17T8/GL50
D5000 Color Viewing Lamp
Graphiclite
100 F25T8/GL50 D5000 Color Viewing Lamp
Graphiclite
100 F32T8/GL50 D5000 Color Viewing Lamp