JPS60151200A - Radiative cooler - Google Patents

Radiative cooler

Info

Publication number
JPS60151200A
JPS60151200A JP762584A JP762584A JPS60151200A JP S60151200 A JPS60151200 A JP S60151200A JP 762584 A JP762584 A JP 762584A JP 762584 A JP762584 A JP 762584A JP S60151200 A JPS60151200 A JP S60151200A
Authority
JP
Japan
Prior art keywords
infrared
detector
guide
light
stray light
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
Application number
JP762584A
Other languages
Japanese (ja)
Other versions
JPH0565400B2 (en
Inventor
橋本 篤治
中谷 光雄
昌幸 安藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP762584A priority Critical patent/JPS60151200A/en
Publication of JPS60151200A publication Critical patent/JPS60151200A/en
Publication of JPH0565400B2 publication Critical patent/JPH0565400B2/ja
Granted legal-status Critical Current

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  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

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

【発明の詳細な説明】 (a) 発明の技術分野 本発明は人工衛星に搭載された放射冷却器に具[1if
tされ、赤外線検知器に赤外線を誘与する赤外線ガイド
の改良に関するものである。
Detailed Description of the Invention (a) Technical Field of the Invention The present invention relates to a radiation cooler mounted on an artificial satellite [1if
This invention relates to improvements in infrared guides that induce infrared rays into infrared detectors.

(l〕)技術の背景 最近の資源探査衛星に搭載される赤外線カメラυ、− 川の赤外線検知器にはklg)!t)%1等の素子4i
1成をも“つ光量子検知器が用いられている。これらは
高感度でかつ応答速度も早いけれども1ll(10Ic
という超低温でなければ作動しないため、特殊な冷却器
(1「1が必要と゛される。そして宇宙空間というl1
殊な環境下にあっても該検知器が高度のf14頼性を発
JFL得る+7.¥造でなければならない。このため迷
光とアウトガスの影響をほぼ完全に防止し1!Jる赤外
線ガイドを備えた放射冷却器の開発が強く要望されてい
る。
(l) Technical Background The infrared camera υ, - river infrared detector installed on recent resource exploration satellites klg)! t) Element 4i such as %1
Photon detectors with 1 liter (10 Ic) are used.Although these have high sensitivity and fast response speed,
Because it cannot operate unless it is at an extremely low temperature, a special cooler (1) is required.
The detector has a high degree of f14 reliability even under special environments.+7. Must be in ¥-zukuri. Therefore, the effects of stray light and outgas are almost completely prevented! There is a strong demand for the development of a radiant cooler equipped with an infrared guide.

(C)従来技術と問題点 第1図は人工衛星に4#j戦された放射冷却器と地球と
の関係を4既略的に説明するための図、第2図は放射冷
却器に具備された従来型赤外線カイトの+11テ造を説
明するための側断面図である。
(C) Prior art and problems Figure 1 is a diagram to schematically explain the relationship between the radiation cooler used by artificial satellites and the earth, and Figure 2 is a diagram to explain the relationship between the radiation cooler and the earth. FIG. 2 is a side sectional view for explaining the +11 structure of a conventional infrared kite.

第1図に示す如く放射冷却器50は人工1・″?f星2
に搭載され地球1から矢印入方向に人別される赤外線9
を衛星2に細膜されたミラー3を介して受光する赤外線
検知器4と、該検知′6J4がJIy、/ITされてい
る冷却板5と、一端が冷却板5に固定され検知器4の外
周を筒状に蔽うように形成された赤外線ガイド10と、
矢印B方向から人fAコする熱光線8を宇宙空間H11
1方向へ反射させる反射板6と、反則(反6の全側面を
蔽うように形成されたシールド7とによって41’f成
されている。さてこのように((“Y成された放」4J
冷却7V 50の冷却板5は環境温度が10にの宇宙空
間1(1+1への放熱によって冷却され該冷却(反5に
ル1,7♂されている赤外線検知器4も作動7iJ艮′
である川o0i<まで冷却される。そして赤外iiりλ
知器4によってチ、;j星2および赤外pi)カイト]
0を介して大引する(j11記赤外縁9が観測される。
As shown in FIG. 1, the radiation cooler 50 is an artificial 1.
Infrared light 9 is mounted on the Earth 1 and is separated from Earth 1 in the direction of the arrow.
An infrared detector 4 receives the light through a mirror 3 thinly attached to the satellite 2, a cooling plate 5 on which the detection '6J4 is fixed, and one end of the detector 4 is fixed to the cooling plate 5. an infrared guide 10 formed to cover the outer periphery in a cylindrical shape;
Heat ray 8 coming from the direction of arrow B to outer space H11
A reflection plate 6 that reflects light in one direction and a shield 7 formed to cover all sides of the reflection plate 6 form a 41'f.
The cooling plate 5 of 7V 50 is cooled by heat radiation to the outer space 1 (1+1) whose environmental temperature is 10, and the infrared detector 4 which is connected to the cooling (reverse 5) is also activated.
It is cooled down to the river o0i<. and infrared λ
Chi by intelligence 4; j star 2 and infrared pi) kite]
0 (j11 infrared edge 9 is observed.

ここで上記赤外?′15ガイド10は、反則板0とシー
ルド仮7との間に介具された1;)「顎シ村(図示せず
)からの1ウドガスがわ!知器4の受光窓面に伺’t7
’iシて’Jlj A!tするのを防止する役IIを持
っている。第21〈1はCの、′1iii分υノ主要措
成を拡大して(葛式的に表現したI+ 、’l lUj
 +rrr [g+であり、rJij図と同等の部分に
ついては同=−付号がイ」されている1゜ +、’S 、巳1から明らかな如く、検知器受光窓4′
の前方に1::1状のガイド10を設けることによって
1iili熱村から兄生じたアウトガス20が受光窓4
′に回り込んで(J〕iiするのを逃ぎることができる
。ところでこのガイド10はできるだけ熱の吸収をしな
いようにその内1tiiを鏡面にするのが好ましいので
あるが、鋭面仕]ユげしたガイドJj’+成では、迷光
′3n(l現測対象となる正規のルートを経た純梓な赤
外線ではなく二次反射光や衛星2の内部で発生したメ1
、”)lF’j!等の総称)が検知器に入射するのを阻
止できず、したがってたとえば矢印C方向から侵入して
赤外A:’r”−ガイド]()の内面1(トに反Bして
受光窓・1′に人別する迷光30によって検知器4によ
る赤外)・:+19の硯1iii1信!1゛↓゛毒性が
阻害される問題を生じていた5、 (cll 発明の目的 本発明は−に記のような従来の欠点を補正するためにな
さ[したもので赤外線ガイドの内面に設けた迷光反射(
jν造によって赤外線検知どの信頼性を向」二させた放
射冷却器を提供することを目的とするものである。
Where is the above infrared? '15 The guide 10 is placed between the foul board 0 and the shield temporary 7; t7
'i shite' Jlj A! It has a role II that prevents people from doing this. The 21st〈1 expands the main composition of C'1iii υ (I + expressed in a katsu style, 'l lUj
+rrr [g+, and the parts equivalent to those in the rJij diagram are 1゜+, 'S, 'S,' where the same = - symbol is added to the same part as in the rJij diagram.
By providing a 1::1 shaped guide 10 in front of the window, the outgas 20 generated from the heat source can be transferred to the light receiving window 4.
By the way, it is preferable that 1tii of this guide 10 has a mirror surface so as not to absorb as much heat as possible, but the sharp surface In the guided guide Jj' + formed, stray light '3n (l is not pure infrared rays that have passed through the regular route that is currently being measured, but secondary reflected light and light generated inside satellite 2).
, ``)lF'j!, etc.) cannot be prevented from entering the detector, and therefore, for example, it enters from the direction of arrow C and enters the infrared rays A:'r''-guide] ( ) into the inner surface 1 ( Infrared light from detector 4 by stray light 30 that separates people from the light-receiving window 1' by anti-B): +19 inkstone 1iii1 signal! 1゛↓〛There was a problem that toxicity was inhibited. Stray light reflection (
The object of the present invention is to provide a radiation cooler that improves the reliability of infrared detection through its construction.

(e) 発明の梠−成 そしてこの目的は本発明によれば人工tFif星に搭載
され入射する赤外線を受光する赤外線検知器と、該検知
器の赤外線受光窓の外周部を筒状に蔽うように形成され
た赤外線ガイドとを具備して成り、1)IJ記赤外尿検
知器を宇宙空間への熱放射によって冷却する放射117
却器ζこおいて、+jiJ記赤外線赤外線ガイドを迷光
反射(1・!造としたことを特徴とする放射冷却);)
;を提供することによって達成される。
(e) The purpose of the invention is to provide an infrared detector which is mounted on an artificial tFif star and receives incoming infrared rays, and which covers the outer periphery of the infrared receiving window of the detector in a cylindrical shape. 1) a radiation 117 that cools the infrared urine detector described in IJ by thermal radiation into outer space;
In the cooling device ζ, the +jiJ infrared infrared guide is reflected by stray light (radiative cooling characterized by having a structure of 1.!);)
This is achieved by providing;

(f) 発明の実施例 以17本発明の実61′[例をIJI簡によって詳述す
る。
(f) Embodiments of the Invention The following 17 embodiments of the present invention will be described in detail with reference to IJI.

第;3図は本発明による放射冷却器の特徴である赤夕1
傅j;1ガイ)・の4(−!造を説明するためのイ1i
i111); IFII図、第4図(,1)〜謔は赤外
線ガイドの4’l゛、i造の変形例を佼式的に表現した
側断11■図であり、これらの図において+Ji1図と
同等の部分については同−初号を付している。また以下
の説明において第1ド1.第2図の説明と重復する部分
は心室省略する。なお本発明は赤外I!5.1カイトQ
〕内面を迷光反!2J’ 41゛!I’造とした点に1
.1徴を有するものであるから、この特徴についての説
明を重点的に行なう。
Figure 3 shows Akatsuki 1, which is a feature of the radiation cooler according to the present invention.
傅j;1guy)・の4(-!
i111); IFII diagrams, Figures 4 (, 1) to 11 are side cross-sectional views 11-1 representing a modification of the 4'l゛, i-shaped infrared guide in a formal manner; Parts that are equivalent to the above are given the same initial number. Also, in the following explanation, the first word 1. Parts that overlap with the description of FIG. 2 will be omitted from the ventricle. The present invention is based on infrared I! 5.1 Kite Q
] Anti-stray light inside! 2J' 41゛! 1 on the point I made
.. Since it has one characteristic, we will focus on explaining this characteristic.

第3図は筒状に形成された赤外が、:: フfイド10
の内+t+r 1(どを衛星2側へ接近するにしたがっ
てI+21面積が縮小するようなテーパ状に形成すると
ともに金メッキを施して、たとえば矢印C方向から侵入
する迷光30(不要熱輻射)を内面10′と底面】()
“の2面で反射して赤外線検知器4の受光窓4′へは入
射させない41ケ造とした例であって、このような4.
Nj 造とすることによって迷光30が赤外a検知器4
の受光窓4′に入射し、正規ルートである矢印へ方向か
ら入射する赤外線9を妨害して赤外線検知器4による観
測データの信頼性を阻害される現象が著しく改良される
Figure 3 shows that the infrared rays formed in a cylindrical shape are
+t+r 1 (I+21) is formed into a tapered shape so that the area I+21 decreases as it approaches the satellite 2 side, and is plated with gold to prevent stray light 30 (unnecessary thermal radiation) entering from the direction of arrow C, for example, to ′ and bottom] ()
This is an example of a 41-piece structure in which the infrared rays are reflected by two surfaces of the infrared rays and do not enter the light-receiving window 4' of the infrared detector 4.
Nj structure allows stray light 30 to be detected by the infrared a detector 4.
The phenomenon in which the infrared rays 9 which enter the light receiving window 4' and which are incident from the direction of the arrow which is the normal route is obstructed and the reliability of observation data by the infrared detector 4 is impaired is significantly improved.

第4図(a)はガイド1(+の内面l(どに第3図と同
様のテーバ形状を複数個形成させた迷光300反射11
を造で、第3図構造と同等の効果をねらった第1の変形
例であり、矢印り方向から内面10′に入射した迷光3
()は第3図で説明したとおりの経路を経て矢印D′方
向に放出される。
Figure 4 (a) shows the stray light 300 reflected 11 formed with multiple Taber shapes similar to those in Figure 3 on the inner surface of the guide 1 (+).
This is the first modified example that aims to achieve the same effect as the structure shown in Fig. 3.
( ) is emitted in the direction of arrow D' through the path explained in FIG.

第4図(1〕)は赤外線ガイド1F+の内i+4i +
o′が”ねじ状”に形成され、矢印E方向から人別する
迷光、30が、ねじu+r 1tll lこ反射して矢
印E′方向へ放出され、検知器4には入射しない桁造と
した第2の変形例である。
Figure 4 (1) shows i+4i + of the infrared guide 1F+.
o' is formed in a "screw shape", and the stray light 30 that separates people from the direction of arrow E is reflected from the screw and emitted in the direction of arrow E', and does not enter the detector 4. This is a second modification.

第4図(c)はガイド]()の内面l(どを蛇)良状の
ベローズ形状]02とし矢印F方向から入射する迷光3
0を反射し反対側の面で再び反射させて矢印F′方向へ
放出する弔3υ)変形例を示す。
Fig. 4 (c) shows the guide] () whose inner surface is a good bellows shape] 02, and stray light 3 enters from the direction of arrow F.
3υ) A modified example is shown in which the light is reflected at the opposite surface and then emitted in the direction of arrow F'.

化4図((1)はカイト10の内it+i If白こ検
知器4側が拡張され反対側が縮小された漏斗に似た形状
のldl光I’J 103を複数個設け、矢印G方向か
ら入射する迷光、30をIXlの如く反射して失印G′
方向へ放出する構造とした第4の変形例である。、 このように赤外i・11!ガイド1.(lの内凹10′
をJ’i+7.1視することぜこよ、って赤外縁杖知器
4の受光1式4′には正規ルー1・からの赤外線1)の
みが有効に入射され、迷光、3()は反りjによって1
jjj衰させられながら検知器4の反対1it:Iへ放
出される。、 (g) 兄、ジ1の効果 以1−詳A:11に説明したように本発明の放射冷却器
は々jζ外縁4λり、(1器に赤外憬を誘尋する赤外線
ガイドの内111141′’r造の改良によって()ミ
知器の機能を妨害する迷光の入射を的確にjilt +
lユしイ(iるといつtこ効果大なるものである。
Figure 4 ((1) shows the it+i If white spot detector 4 side of the kite 10 is expanded and the opposite side is contracted. A plurality of ldl lights I'J 103 shaped like a funnel are provided and enter from the direction of arrow G. Stray light, reflecting 30 like IXl and losing the mark G'
This is a fourth modification example having a structure in which the light is emitted in the direction. , Infrared i-11 like this! Guide 1. (inner recess 10' of l
Therefore, only the infrared rays 1) from the regular Lu 1) are effectively incident on the light receiving set 4' of the infrared edge detector 4, and the stray light 3() is 1 by warp j
It is emitted to the opposite side of the detector 4 1it:I while being attenuated. , (g) Effects of Ji 1 - Details A: As explained in 11, the radiation cooler of the present invention has an outer edge of 4λ, By improving the structure of 111141'', we can accurately prevent the incidence of stray light that interferes with the function of the detector.
(It has a great effect when I do it.)

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は放射冷却器と地球との関係を説明するだめの図
、第2図は放射冷却器に具備された従来型赤外線ガイド
を説明するための図、第3図は本発明による放射冷却器
の赤外線ガイドの(’f’j造を説明するための図、第
41gi (a)〜(d)は本気間に係る赤外線ガイド
の変形例を説明するための図である。 図面において、1は地球、2は人工衛星本体、3はミラ
ー、4は赤外線検知器、4′は受光窓、5は冷却+1i
、6は反射板、7はシールド板、8は熱光線、9は赤外
線、10は赤外線ガイド、1(どはガイシ、べ30は迷
光、50は冷却板52反射板0.シールド板7を具備し
た放射冷却器、100は宇宙空間、101はねじ曲、1
02はベローズ形状、10;3は阻光壁をそれぞれ示す
。 第 1 図 0 第2図 第 3 図
Figure 1 is a diagram to explain the relationship between the radiation cooler and the earth, Figure 2 is a diagram to explain the conventional infrared guide included in the radiation cooler, and Figure 3 is the radiation cooling according to the present invention. Figure 41 (a) to (d) are diagrams for explaining the structure of the infrared guide of the device. is the earth, 2 is the satellite body, 3 is the mirror, 4 is the infrared detector, 4' is the light receiving window, 5 is the cooling +1i
, 6 is a reflector, 7 is a shield plate, 8 is a heat ray, 9 is an infrared ray, 10 is an infrared guide, 1 is an insulator, 30 is a stray light, 50 is a cooling plate 52, a reflector 0, and a shield plate 7. radiation cooler, 100 is outer space, 101 is torsion, 1
02 indicates a bellows shape, and 10; 3 indicates a light blocking wall. Figure 1 Figure 0 Figure 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] 人工衛星に搭載されて入射する赤外線を受光する赤外線
検知器と、該検知器の赤外線受光窓の外周t:1;を1
:テ)状に蔽うように形成された赤外穆ガイドとを共蘭
して成り、+、+iJ記赤外線検知器を宇宙空間への熱
放射によって冷却する放射冷却器において、rm記赤外
線ガイドの内面を迷光反射措造としたことを特徴とする
放射冷却器、。
An infrared detector mounted on an artificial satellite to receive incoming infrared rays, and an outer circumference t of the infrared receiving window of the detector: 1;
In a radiation cooler that cools the infrared detector marked +, +iJ by heat radiation to outer space, the infrared guide marked rm is A radiation cooler characterized by having a stray light reflecting structure on its inner surface.
JP762584A 1984-01-18 1984-01-18 Radiative cooler Granted JPS60151200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP762584A JPS60151200A (en) 1984-01-18 1984-01-18 Radiative cooler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP762584A JPS60151200A (en) 1984-01-18 1984-01-18 Radiative cooler

Publications (2)

Publication Number Publication Date
JPS60151200A true JPS60151200A (en) 1985-08-09
JPH0565400B2 JPH0565400B2 (en) 1993-09-17

Family

ID=11671003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP762584A Granted JPS60151200A (en) 1984-01-18 1984-01-18 Radiative cooler

Country Status (1)

Country Link
JP (1) JPS60151200A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6317484U (en) * 1986-07-16 1988-02-05
JP2009250705A (en) * 2008-04-03 2009-10-29 Fujitsu Ltd Light guiding mechanism for illumination sensor and mobile phone

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897552A (en) * 1972-01-27 1973-12-12
JPS57182600U (en) * 1981-05-09 1982-11-19

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897552A (en) * 1972-01-27 1973-12-12
JPS57182600U (en) * 1981-05-09 1982-11-19

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6317484U (en) * 1986-07-16 1988-02-05
JPH0515117Y2 (en) * 1986-07-16 1993-04-21
JP2009250705A (en) * 2008-04-03 2009-10-29 Fujitsu Ltd Light guiding mechanism for illumination sensor and mobile phone

Also Published As

Publication number Publication date
JPH0565400B2 (en) 1993-09-17

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