公开(公告)号：US3737705A

公开(公告)日：1973-06-05

申请号：US3737705D

申请日：1971-12-14

Applicant: TOKYO SHIBAURA ELECTRIC CO

Inventor： TAKEDA M ,  MIYANO H ,  NAGAOKA H

IPC: H01J29/18 ,  H01J31/15 ,  H01J1/66 ,  H01J1/68

CPC classification number: H01J31/15 ,  H01J29/18

Abstract: A luminescent alphanumeric indicating tube comprising an array of fluorescent segments formed on one surface of an insulating substrate, each segment including a carbon layer coated on the surface of the substrate and a first fluorescent layer interposed between the carbon layer and a second fluorescent layer, the first layer consisting fluorescent particles whose diameter is nearly equal to or smaller than that of the particles constituting the carbon layer and the second layer consisting of fluorescent particles whose diameter is larger than that of the particles consistuting the first fluorescent layer.

Abstract translation: 一种发光字母数字指示管，包括形成在绝缘基板的一个表面上的荧光区阵列，每个区段包括涂覆在基板表面上的碳层和插在碳层和第二荧光层之间的第一荧光层， 第一层包括直径几乎等于或小于构成碳层的颗粒的荧光颗粒，第二层由直径大于构成第一荧光层的颗粒的直径的荧光颗粒组成。