JPS59112933U

JPS59112933U - aperture

Info

Publication number: JPS59112933U
Application number: JP19787583U
Authority: JP
Inventors: 俊彦長田
Original assignee: 富士通株式会社
Priority date: 1983-12-22
Filing date: 1983-12-22
Publication date: 1984-07-30

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に用いる第１の平板の上面図
ａ及び断面図ｂ、第２図は同実施例に用いる第２の平板
の上面図ａ及び断面図ｂ１第３図は本考案の一実施の上
面図ａ及び断面図ｂ１第４図はアパーチャ取り付は構造
断面図である。図に於て１はシリコン基板、２はナイフ・エツジ状の辺
、３は正方形窓、４は第１の平板、５は矩形窓、６は第
２の平板、７は二酸化シリコン、８は五角形窓、９はア
パーチャ取り付は枠、１０はアパーチャ固定爪、１１は
アパーチャ固定爪締め付けねじ、を表わす。FIG. 1 is a top view a and a cross-sectional view b of a first flat plate used in an embodiment of the present invention, FIG. 2 is a top view a and a cross-sectional view b of a second flat plate used in the same embodiment, and FIG. A top view (a) and a cross-sectional view (b1) of an embodiment of the present invention are shown in FIG. In the figure, 1 is a silicon substrate, 2 is a knife-edge shaped side, 3 is a square window, 4 is a first flat plate, 5 is a rectangular window, 6 is a second flat plate, 7 is silicon dioxide, and 8 is a pentagon. 9 represents a frame for attaching the aperture, 10 represents an aperture fixing claw, and 11 represents an aperture fixing claw tightening screw.

Claims

[Scope of utility model registration request]

Two flat plates each provided with a rectangular window having a knife-edge shaped periphery, the surfaces having the knife edges touching each other such that a polygonal window of pentagon or more is formed by the combination of the rectangular windows. An aperture characterized by being formed by being superimposed on each other.