JPS6420514A - Supporting structure for reflection mirror spider - Google Patents
Supporting structure for reflection mirror spiderInfo
- Publication number
- JPS6420514A JPS6420514A JP17772487A JP17772487A JPS6420514A JP S6420514 A JPS6420514 A JP S6420514A JP 17772487 A JP17772487 A JP 17772487A JP 17772487 A JP17772487 A JP 17772487A JP S6420514 A JPS6420514 A JP S6420514A
- Authority
- JP
- Japan
- Prior art keywords
- spider
- reflection mirror
- plane
- infrared ray
- main reflection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Telescopes (AREA)
Abstract
PURPOSE:To reduce a radiant ratio and to obtain a high S/N, by constituting a plane confronting with a main reflection mirror in a reflection mirror spider supporting structure of a material having a high reflectance in an infrared ray area. CONSTITUTION:The plane 6a' confronting with the main reflection mirror 2 of a spider 6 is constituted of the material having the high reflectance in the infrared ray area. The plane 6' is set as the grinding plane made of Al, and a ray outputted perpendicularly from the plane 6' confronting with the main reflection mirror 2 of the spider 6 is emitted to a room via the main reflection mirror 2. Since relation between the reflectance gamma and the radiant ratio epsilon is set as gamma+epsilon=1, it is possible to reduce the radiant ratio of noise infrared ray by increasing the reflectance gamma forming the plane 6' of the spider 6 with a mirror of Al. Thus, it results that an input signal to a measuring instrument = (the signal 8 of a celestial body to be measured) + (the noise infrared ray 10 emitted from the spider 6 with a low radiant ratio), then, the noise in the measuring instrument can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17772487A JPH0718978B2 (en) | 1987-07-15 | 1987-07-15 | Reflector spider support structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17772487A JPH0718978B2 (en) | 1987-07-15 | 1987-07-15 | Reflector spider support structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6420514A true JPS6420514A (en) | 1989-01-24 |
JPH0718978B2 JPH0718978B2 (en) | 1995-03-06 |
Family
ID=16036003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17772487A Expired - Fee Related JPH0718978B2 (en) | 1987-07-15 | 1987-07-15 | Reflector spider support structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0718978B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03161645A (en) * | 1989-11-17 | 1991-07-11 | Mitsubishi Electric Corp | Truss structure |
JPH03219204A (en) * | 1990-01-24 | 1991-09-26 | Mitsubishi Electric Corp | Structural body |
WO2006009126A1 (en) | 2004-07-16 | 2006-01-26 | Mitsubishi Chemical Corporation | Electrophotographic photosensitive body |
US20140002669A1 (en) * | 2011-03-16 | 2014-01-02 | Kenta Sudo | Infrared image capture device |
-
1987
- 1987-07-15 JP JP17772487A patent/JPH0718978B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03161645A (en) * | 1989-11-17 | 1991-07-11 | Mitsubishi Electric Corp | Truss structure |
JPH03219204A (en) * | 1990-01-24 | 1991-09-26 | Mitsubishi Electric Corp | Structural body |
WO2006009126A1 (en) | 2004-07-16 | 2006-01-26 | Mitsubishi Chemical Corporation | Electrophotographic photosensitive body |
US20140002669A1 (en) * | 2011-03-16 | 2014-01-02 | Kenta Sudo | Infrared image capture device |
Also Published As
Publication number | Publication date |
---|---|
JPH0718978B2 (en) | 1995-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |