公开(公告)号：US6287163B2

公开(公告)日：2001-09-11

申请号：US72684400

申请日：2000-11-30

Applicant: MATSUSHITA ELECTRIC IND CO LTD

Inventor： TANAKA KAZUHISA ,  SAITOH TAKESHI ,  IKEDA MASARU ,  SEKI TOMOYUKI

IPC: H01J9/20 ,  C03C17/00 ,  C03C17/04 ,  H01J5/08 ,  H01J61/02 ,  H01J61/04 ,  H01J61/35 ,  H01K1/32 ,  H01K3/00

CPC classification number: C03C17/005 ,  C03C17/04 ,  H01J5/08 ,  H01J61/025 ,  H01J61/04 ,  H01J61/35

Abstract: A greensheet comprising an inorganic pigment and an inorganic matrix component is applied to a surface of a glass substrate and fired for fixing. The formed shading film has a portion whose thickness is 90% or more of the maximum thickness of the shading film within the range of 0.5 mm from an edge of the shading film. Thus, a shading film that has distinct end faces and has an excellent thickness uniformity can be formed with a good positional accuracy. Therefore, a lamp having a highly precise light distribution property can be obtained. In addition, a lamp having such a property can be obtained with a few steps and at a low cost.

Abstract translation: 将包含无机颜料和无机基质成分的毛坯涂布在玻璃基板的表面上并点火固定。 所形成的遮光膜的厚度为遮光膜的最大厚度的90％以上，与遮光膜的边缘成0.5mm以内的部分。 因此，可以以良好的位置精度形成具有不同端面且具有优异的厚度均匀性的遮光膜。 因此，可以获得具有高精度配光性能的灯。 此外，可以以几个步骤并且以低成本获得具有这种性质的灯。