JPH0642027B2 - Acousto-optic element - Google Patents
Acousto-optic elementInfo
- Publication number
- JPH0642027B2 JPH0642027B2 JP10694385A JP10694385A JPH0642027B2 JP H0642027 B2 JPH0642027 B2 JP H0642027B2 JP 10694385 A JP10694385 A JP 10694385A JP 10694385 A JP10694385 A JP 10694385A JP H0642027 B2 JPH0642027 B2 JP H0642027B2
- Authority
- JP
- Japan
- Prior art keywords
- acousto
- melting point
- optic
- optic medium
- transducer
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、音響光学素子に関するものである。TECHNICAL FIELD The present invention relates to an acousto-optic device.
（従来の技術） 音響光学素子の動作原理を第２図を用いて説明する。１
を音響光学媒体、２をトランスジューサ、８を高周波発
振器、９，9a,9bをそれぞれ入射光、非回折光、回折光
とすると、高周波発振器８によりトランスジューサ２に
印加された高周波電気信号は音響光学媒体１中を進行す
る超音波信号に変換され、この超音波信号が、角度θで
入射した光を回折する。(Prior Art) The operating principle of an acousto-optic device will be described with reference to FIG. 1
Is an acousto-optic medium, 2 is a transducer, 8 is a high-frequency oscillator, and 9, 9a and 9b are incident light, non-diffracted light, and diffracted light, respectively, and the high-frequency electric signal applied to the transducer 2 by the high-frequency oscillator 8 is an acousto-optic medium. 1 is converted into an ultrasonic wave signal that travels in 1 and this ultrasonic wave signal diffracts light incident at an angle θ.
音響光学媒体１として用いられる結晶（PbMoO4,TeO2な
ど）は熱に弱く、あるいは熱によりひずみを受けやすい
性質を有する。このため、従来の音響光学素子では、Ni
-Cr蒸着膜を下地としてその上に形成されたトランスジ
ューサの電極に対し、熱硬化型あるいは常温硬化型の導
電性接着剤を用いてリード線を接合していた。The crystal (PbMoO 4 , TeO 2, etc.) used as the acousto-optic medium 1 has a property that it is weak against heat or is easily strained by heat. Therefore, in conventional acousto-optic devices, Ni
The lead wire was bonded to the electrode of the transducer formed on the -Cr vapor-deposited film using a thermosetting or room temperature-curable conductive adhesive.
（発明が解決しようとする問題点） このような従来の方法では、作業性が悪い上に耐湿性も
良くないという問題点があった。(Problems to be Solved by the Invention) Such a conventional method has a problem that the workability is poor and the moisture resistance is also poor.
本発明は、このような問題点を解決するためのもので、
熱衝撃をできるだけ少なくしてリード線を接合するよう
にした音響光学素子を提供するものである。The present invention is for solving such a problem,
The present invention provides an acousto-optic device in which lead wires are joined together while minimizing thermal shock.
（問題点を解決するための手段） 上記問題点を解決するために、トランスジューサの電極
としてNi-Crを下地に、その上ににCu,Auを順に蒸着し、
この電極に、90〜180℃の融点を有する低融点ハンダを
用いてリード線を接合するものである。(Means for Solving Problems) In order to solve the above problems, Ni-Cr is used as an electrode of the transducer on a base, and Cu and Au are sequentially vapor-deposited thereon.
A lead wire is joined to this electrode by using a low melting point solder having a melting point of 90 to 180 ° C.
（作用） Ni-Cr層で電極の接着強度を増し、Cu層でハンダ付を確
実にし、かつAu層でCuの酸化を防止することができ、ま
た、低融点ハンダを使用することにより、リード線ハン
ダ付時に音響光学媒体の結晶に大きな熱衝撃を与えな
い。(Function) The Ni-Cr layer can increase the adhesive strength of the electrode, the Cu layer can ensure soldering, and the Au layer can prevent the oxidation of Cu. Also, by using the low melting point solder, lead Does not give a large thermal shock to the crystal of the acousto-optic medium when wire soldering is applied.
（実施例） 第１図は、本発明の一実施例の音響光学素子を示したも
のである。第１図において、１は音響光学媒体、２は音
響光学媒体１に固着されたトランスジューサ、３は電極
下地としてのNi-Cr蒸着膜、４はその上に形成されたCu
蒸着膜、５はさらにその上に形成されたAu蒸着膜であ
る。そして、リード線７は、低融点ハンダ６によりハン
ダ付される。(Example) FIG. 1 shows an acoustooptic device according to an example of the present invention. In FIG. 1, 1 is an acousto-optic medium, 2 is a transducer fixed to the acousto-optic medium 1, 3 is a Ni—Cr vapor deposition film as an electrode base, and 4 is Cu formed thereon.
The vapor-deposited film 5 is an Au vapor-deposited film further formed thereon. Then, the lead wire 7 is soldered by the low melting point solder 6.
（発明の効果） 以上のように本発明によれば、低融点ハンダを用いてハ
ンダ付するため、音響光学媒体の結晶にかかる熱衝撃は
小さく、しかも電極がNi-Cr,Cu,Auの３層構造になって
いるので、耐湿性も良くなり、作業性も向上するという
効果が得られる。(Effects of the Invention) According to the present invention as described above, since soldering is performed using a low melting point solder, the thermal shock applied to the crystal of the acousto-optic medium is small, and the electrodes are made of Ni-Cr, Cu, Au. Since it has a layered structure, moisture resistance is improved and workability is improved.
第１図は、本発明の一実施例の音響光学素子の構成図、
第２図は、音響光学素子の動作原理を説明する図であ
る。 １……音響光学媒体、２……トランスジューサ、３……
Ni-Cr蒸着膜、４……Cu蒸着膜、 ５……Au蒸着膜、６……低融点ハンダ、７……リード
線。FIG. 1 is a configuration diagram of an acoustooptic device according to an embodiment of the present invention,
FIG. 2 is a diagram for explaining the operating principle of the acousto-optic device. 1 ... Acousto-optic medium, 2 ... Transducer, 3 ...
Ni-Cr evaporated film, 4 ... Cu evaporated film, 5 ... Au evaporated film, 6 ... Low melting point solder, 7 ... Lead wire.
Claims (1)
サの電極が、Ni-Cr,Cu,Auを順次蒸着した３層構造から
なり、前記電極へのリード線の接合に、90〜180℃の融
点を有する低融点ハンダを用いたことを特徴とする音響
光学素子。1. A transducer electrode fixed to an acousto-optic medium has a three-layer structure in which Ni-Cr, Cu, and Au are sequentially vapor-deposited, and has a melting point of 90 to 180 ° C. for joining a lead wire to the electrode. An acousto-optic device characterized by using a low melting point solder having.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10694385A JPH0642027B2 (en) | 1985-05-21 | 1985-05-21 | Acousto-optic element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10694385A JPH0642027B2 (en) | 1985-05-21 | 1985-05-21 | Acousto-optic element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61267023A JPS61267023A (en) | 1986-11-26 |
| JPH0642027B2 true JPH0642027B2 (en) | 1994-06-01 |
Family
ID=14446456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10694385A Expired - Lifetime JPH0642027B2 (en) | 1985-05-21 | 1985-05-21 | Acousto-optic element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0642027B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2827125B2 (en) * | 1989-11-20 | 1998-11-18 | 松下電器産業株式会社 | Acousto-optic element |
| JP3179408B2 (en) | 1998-04-06 | 2001-06-25 | 日本電気株式会社 | Waveguide type optical device |
-
1985
- 1985-05-21 JP JP10694385A patent/JPH0642027B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61267023A (en) | 1986-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3570600B2 (en) | Piezoelectric component and method of manufacturing the same | |
| JPH0642027B2 (en) | Acousto-optic element | |
| JPS62172676A (en) | Terminal attachment to the material which is hard to be soldered | |
| JPH034576A (en) | Laminated type piezoelectric element | |
| JP2003078995A (en) | Piezoelectric acoustic device | |
| JPH0127424B2 (en) | ||
| JPH04152938A (en) | Manufacture of high polymer ultrasonic vibrator | |
| JP2572864Y2 (en) | Pyroelectric infrared detector | |
| JP2003125492A (en) | Piezoelectric acoustic device | |
| JPH0628879Y2 (en) | Oscillator | |
| JPS6214118A (en) | Electrochromic element | |
| JPS6123866Y2 (en) | ||
| JPH0238497Y2 (en) | ||
| JPH0238488Y2 (en) | ||
| JPS6318173Y2 (en) | ||
| JPH0425731Y2 (en) | ||
| JPS6119215A (en) | Electrode structure of piezoelectric vibrator | |
| JP3334422B2 (en) | Transducer manufacturing method | |
| JPH01160423U (en) | ||
| JPS6022719Y2 (en) | ultrasonic transducer | |
| JPH0132370Y2 (en) | ||
| JPS63102600A (en) | Piezoelectric buzzer | |
| JPS63221381A (en) | Construction of connecting terminal section | |
| JPS61169160A (en) | Connecting method of multi-terminal lead | |
| JP2003158794A (en) | Piezoelectric acoustic unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |