JPS5893808U - Crystal diameter monitoring device using the pulling method - Google Patents

Crystal diameter monitoring device using the pulling method

Info

Publication number
JPS5893808U
JPS5893808U JP18876381U JP18876381U JPS5893808U JP S5893808 U JPS5893808 U JP S5893808U JP 18876381 U JP18876381 U JP 18876381U JP 18876381 U JP18876381 U JP 18876381U JP S5893808 U JPS5893808 U JP S5893808U
Authority
JP
Japan
Prior art keywords
monitoring device
laser beam
pulling method
crystal diameter
diameter monitoring
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.)
Pending
Application number
JP18876381U
Other languages
Japanese (ja)
Inventor
健一 白木
斎藤　試一
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP18876381U priority Critical patent/JPS5893808U/en
Publication of JPS5893808U publication Critical patent/JPS5893808U/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
  • Crystals, And After-Treatments Of Crystals (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

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

第１図は本考案の一実施例の断面図である。第２図は結
晶と融液との界面の拡大図である。 １・・・・・・育成中のＹＡＧ結晶、２・・・・・・Ｙ
ＡＧ融液、７・・・・・・Ｈｅ−Ｈｅレーザ装置、１２
・・・・・・回転チョッパ、１３・・・・・・スクリー
ンあるいは受光器。FIG. 1 is a sectional view of an embodiment of the present invention. FIG. 2 is an enlarged view of the interface between the crystal and the melt. 1...YAG crystal being grown, 2...Y
AG melt, 7... He-He laser device, 12
...Rotating chopper, 13...Screen or light receiver.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 融液表面に対して前もって定める任意の角度でレーザ光
線を照射できるようにしたレーザ光線照射装置と、液面
に入射するレーザ光線を育成中の結晶の回転に同期して
断続するようにしたチョッパと、反射レーザ光線を受光
する受光手段とを含むことを特徴とする引上法による結
晶の直径監視装置。A laser beam irradiation device that can irradiate the melt surface with a laser beam at any predetermined angle, and a chopper that cuts off the laser beam incident on the liquid surface in synchronization with the rotation of the growing crystal. and a light receiving means for receiving a reflected laser beam.
JP18876381U 1981-12-18 1981-12-18 Crystal diameter monitoring device using the pulling method Pending JPS5893808U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18876381U JPS5893808U (en) 1981-12-18 1981-12-18 Crystal diameter monitoring device using the pulling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18876381U JPS5893808U (en) 1981-12-18 1981-12-18 Crystal diameter monitoring device using the pulling method

Publications (1)

Publication Number Publication Date
JPS5893808U true JPS5893808U (en) 1983-06-25

Family

ID=29992551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18876381U Pending JPS5893808U (en) 1981-12-18 1981-12-18 Crystal diameter monitoring device using the pulling method

Country Status (1)

Country Link
JP (1) JPS5893808U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5238512A (en) * 1975-09-23 1977-03-25 Hida Kk Method and apparatus for finishing ceramic blocks by cutting

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5238512A (en) * 1975-09-23 1977-03-25 Hida Kk Method and apparatus for finishing ceramic blocks by cutting

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