Title:
A reflecting member and a flame sensor
Document Type and Number:
Japanese Patent JP6093557
Kind Code:
B2
Abstract:
A reflecting member made from a tube-shaped member has an inner peripheral surface that structures a reflecting surface on an axis of the tube-shaped member. A slope, relative to the axis, of a tangent line of the inner peripheral surface in a cross-sectional plane containing the axis changes monotonically along the axis. In relation to a target facing a smaller opening of the tube-shaped member, at a specific distance therefrom, and having a flat region perpendicular to the axis and axially symmetrical relative to the axis, of an electromagnetic radiation incident along the axis from a larger opening of the tube-shaped member, that radiation reflected at a specific location on the larger opening side is incident on one end side of the flat region, and that radiation reflected at a specific location on the smaller opening side is incident on the other end side of the flat region.
Inventors:
Mori Raita
Application Number:
JP2012251915A
Publication Date:
March 08, 2017
Filing Date:
November 16, 2012
Export Citation:
Assignee:
Azbil Co., Ltd.
International Classes:
G01J1/04; G01J1/02; H01J40/00
Domestic Patent References:
| JP2011214893A | ||||
| JP11509011A | ||||
| JP2008533752A |
Foreign References:
| US20030038745 |
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Shigeki Yamakawa
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