JPS5832130A - Photoelectric transducer for illuminometer - Google Patents

Photoelectric transducer for illuminometer

Info

Publication number
JPS5832130A
JPS5832130A JP56131136A JP13113681A JPS5832130A JP S5832130 A JPS5832130 A JP S5832130A JP 56131136 A JP56131136 A JP 56131136A JP 13113681 A JP13113681 A JP 13113681A JP S5832130 A JPS5832130 A JP S5832130A
Authority
JP
Japan
Prior art keywords
dye
glass filter
visual sensitivity
photoelectric transducer
curve
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
JP56131136A
Other languages
Japanese (ja)
Inventor
Akira Hanabusa
花房 彰
Kuniyoshi Omura
尾村 邦嘉
Yutaro Kita
祐太郎 北
Hiroyuki Kitamura
北村 外幸
Mikio Murozono
幹夫 室園
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56131136A priority Critical patent/JPS5832130A/en
Publication of JPS5832130A publication Critical patent/JPS5832130A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/02Details
    • G01J1/04Optical or mechanical part supplementary adjustable parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/02Details
    • G01J1/0204Compact construction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/02Details
    • G01J1/04Optical or mechanical part supplementary adjustable parts
    • G01J1/0488Optical or mechanical part supplementary adjustable parts with spectral filtering
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/465Measurement of colour; Colour measuring devices, e.g. colorimeters taking into account the colour perception of the eye; using tristimulus detection
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/51Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
    • G01J3/513Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters having fixed filter-detector pairs

Abstract

PURPOSE:To obtain a titled device which has the spectral sensitivity characteristics coincident with the curve of visual sensitivity and can be manufactured by constituting the same of a silicon photoelectric cell, a glass filter for correcting visual sensitivity and a dye for correcting visual sensitivity. CONSTITUTION:A photoelectric transducer is constituted of a p-n junction type silicon photoelectric transducer 2, a glass filter 5 for correcting visual sensitivity, and a dye for correcting visual sensitivity. For example, a silicon photovoltaic element 2 is die-bonded to an insulating stem 1, and is further bonded by means of a gold wire 3 of 25mmu size. The upper part thereof is coated with a colored glass filter 5 having an effect of absorbing light of long wavelength by using an epoxy resin 4 added with an oil-soluble monoazo dye having an effect of absorbing short wavelength as a potting material, whereby the photoelectric transducer for illuminometers is manufactured.

Description

【発明の詳細な説明】 本発明は、照度計用光検出器としての光電変換装置に関
し、光検出器として極めて重要な視感度曲線に合致した
分光感度特性をもち、信頼性の高い光電変換装置を容易
にかつ安価に提供することを目的としたものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photoelectric conversion device as a photodetector for an illumination meter, and a highly reliable photoelectric conversion device that has spectral sensitivity characteristics that match a visibility curve, which is extremely important for a photodetector. The aim is to provide this easily and at low cost.

従来より照度計に用いられている光検出器としては大別
して、光電管式のもの、セレン光電池やシリコン光電池
等の光起電力素子を用いる方式のもの、CdS  等の
光導電体を用いる方式のものがある。
Photodetectors conventionally used in illumination meters can be roughly divided into phototube types, types using photovoltaic elements such as selenium photocells and silicon photocells, and types using photoconductors such as CdS. There is.

しかしながら、一般に光電管式の検出器は高価であり、
光起電力素子のうち、セレン光電池を用いるものは安価
である反面、疲労特性や温度特性に問題があり、さらに
光導電体としてのCdS  はその製法上、蒸着法や気
相反応法及び焼結法では均一な薄膜を再現性よく、大量
でかつ安価に製造することができないという問題があっ
た。
However, phototube detectors are generally expensive;
Among photovoltaic devices, those using selenium photovoltaic cells are inexpensive, but have problems with fatigue and temperature characteristics.Furthermore, CdS as a photoconductor requires evaporation, gas phase reaction, and sintering. The problem with this method is that it is not possible to produce uniform thin films with good reproducibility, in large quantities, and at low cost.

従って、照度計用光検出器としては、コスト。Therefore, as a photodetector for illumination meter, the cost is low.

信頼性、緒特性の面から検討して、シリコン光電池を用
いることが望ましいと考えられる。
Considering reliability and performance characteristics, it is considered desirable to use silicon photovoltaic cells.

しかし、シリコン光電池であっても、それ自体    
−の分光感度特性が照度計に要求される視感度曲線に合
致していないため、視感度曲線に分光感度曲線を近づけ
るための視感度補正フィルタが必要であり、従来よシ色
ガラスフィルタ(長波長吸収)とCdS 薄膜等(短波
長吸収)との組合せにより、3・”− 分光感度曲線を視感度曲線に近づける試みもあるが、こ
の構造のものでは、均一な薄膜を再現性よく、大量にか
つ安価に製造することがむずかしかった。
However, even silicon photovoltaic cells themselves
Since the spectral sensitivity characteristics of - do not match the visibility curve required for illumination meters, a visibility correction filter is required to bring the spectral sensitivity curve closer to the visibility curve, and compared to the conventional dark glass filter (long Some attempts have been made to bring the spectral sensitivity curve closer to the luminous sensitivity curve by combining CdS thin films (short wavelength absorption) with CdS thin films (short wavelength absorption), but with this structure, uniform thin films can be produced in large quantities with good reproducibility. It was difficult to manufacture quickly and inexpensively.

本発明の目的とするところは、前述の如き従来の照度計
用光検出器の欠点を改善するために、長波長成分の除去
対策としては、従来の色ガラスフィルタを使用し、短波
長成分の除去対策としては、短波長光を吸収する染料を
エポキシ樹脂に添加することにより、分光感度曲線を視
感度曲線に合致させるとともに、前記エポキシ樹脂をポ
ツティング材として使用することにより、高信頼性の光
検出器を提供することにある。
The purpose of the present invention is to improve the drawbacks of the conventional photodetector for illumination meters as described above, by using a conventional colored glass filter as a measure to remove long wavelength components, and to remove short wavelength components. As a countermeasure for removal, by adding a dye that absorbs short wavelength light to epoxy resin, the spectral sensitivity curve matches the visual sensitivity curve, and by using the epoxy resin as a potting material, highly reliable light The purpose is to provide a detector.

以下、本発明について詳細に説明する。The present invention will be explained in detail below.

第1図aに示す如き分光感度特性を有するシリコン光起
電力素子と、市販されている視感度補正ガラスフィルタ
、例えば東芝ガラス■製シアンブルーガラスフィルター
〇−528との組合せによって得られる分光感度特性す
は、そのピーク値(波長550 nm )より長波長側
においては視感度曲線Cと比°較的一致したものが得ら
れるが、それ      。
Spectral sensitivity characteristics obtained by combining a silicon photovoltaic element having spectral sensitivity characteristics as shown in FIG. However, on the longer wavelength side than the peak value (wavelength 550 nm), a luminosity curve that is relatively consistent with the luminous efficiency curve C can be obtained.

よりも短波長側においては、各波長の視感度曲線Cの相
対値よシも大きい値を示し、法定照度計で規定された値
を満足することができない。
On the shorter wavelength side, the relative value of the visibility curve C for each wavelength shows a larger value, and cannot satisfy the value specified by the legal illuminometer.

そこで、400〜500mμの短波長光を吸収するフィ
ルタ特性を有する染料で、さらに該染料が長期的に安定
なものである必要性から、エポキシ樹脂に対して相溶性
が良好なこと、耐熱性が良ノ好であシ、高温処理に対し
て吸収スペクトルの吸光度の変イ”ヒが5チ以下である
こと等を考慮して、油溶性のモノアゾ染料のカラーイン
デックス屋12700のものを選定し、この染料をエポ
キシ樹脂内に添加し、”ポツティング材として用いるこ
とにより、前述した如き短波長側における視感度曲線か
らのずれを第2図に示す吸収スペクトルを有する染料の
もつフィルタ効果と、前記視感度補正用色ガラスフィー
1夕との相乗効果を利用し万前記視感度曲線の各波長に
おける相対感度値に近づ    ・けたものである。す
なわち、前記染料で短波長側の余分な感度を除去するこ
とによって、第3図Cに示すように照度計月光電変換装
置として極めて理想的な分光感度曲線を有するとともに
、さらには耐熱特性、耐湿特性、耐候特性等の優れた照
度計用光検出器を得ることができた。参考までに第3図
dに視感度曲線を示す。
Therefore, it is necessary to use a dye that has filter properties that absorb short wavelength light of 400 to 500 mμ and is also stable over a long period of time. We selected an oil-soluble monoazo dye with a color index of 12700, taking into account that it was of good quality and that the change in absorbance of the absorption spectrum was less than 5 degrees when subjected to high-temperature treatment. By adding this dye into an epoxy resin and using it as a potting material, the deviation from the visibility curve on the short wavelength side as described above can be reduced by the filtering effect of the dye having the absorption spectrum shown in Figure 2, and the aforementioned visibility curve. Utilizing the synergistic effect with the colored glass film for sensitivity correction, the relative sensitivity value at each wavelength of the luminous efficiency curve can be approached or even higher. That is, by removing the excess sensitivity on the short wavelength side with the dye, it has a spectral sensitivity curve that is extremely ideal for an illumination meter lunar photoelectric conversion device as shown in Figure 3C, and also has excellent heat resistance and moisture resistance. We were able to obtain a photodetector for illuminometers with excellent characteristics and weather resistance. For reference, the visibility curve is shown in Figure 3d.

第4図に、本発明による照度計用検出器の一例を示すが
、絶縁性ステム1にシリコン光起電力素子2をダイスボ
ンドし、さらに太さ25mμの金線3にてワイヤーボン
ドを行ない、短波長吸収効果を有する油溶性モノアゾ染
料を添加したエポキシ樹脂4をポツティング材として使
用し、長波長光吸収効果を有する色ガラスフィルタ6で
上部を″覆った構造である。
FIG. 4 shows an example of a detector for an illumination meter according to the present invention, in which a silicon photovoltaic element 2 is dice-bonded to an insulating stem 1, and further wire-bonded with a gold wire 3 having a thickness of 25 mm. It has a structure in which an epoxy resin 4 to which an oil-soluble monoazo dye having a short wavelength absorption effect is added is used as a potting material, and the upper part is covered with a colored glass filter 6 having a long wavelength light absorption effect.

このように、本発明よりなる光電変換装置は、これまで
の照度計用光検出器では、計量法等の法定規格を十分に
満足することは極めて、困−であった視感度補正を、簡
便にしてしかも安価で満足させることができるものであ
る。
As described above, the photoelectric conversion device of the present invention can easily perform visibility correction, which has been extremely difficult to fully satisfy legal standards such as the Metrology Act with conventional photodetectors for illumination meters. Moreover, it is inexpensive and can satisfy the needs.

さらに、本発明で用いる視感度補正構造のうち、前記樹
脂及び染料は、単に分光感度特性の短波長6・ 領域の補正のためだけでなく、シリコン起電力素子を保
護するためにも有効であり、長波長領域補正のための色
ガラスフィルタを固定する役割をも果すので、シリコ〉
光起電力素子の照度計用光電変換装置としての優れた緒
特性と合まって、高感度、高信頼性の照度計を提供する
ことができるという利点がある。
Furthermore, in the visibility correction structure used in the present invention, the resin and dye are effective not only for correcting the short wavelength region of spectral sensitivity characteristics, but also for protecting the silicon electromotive element. , because it also plays the role of fixing the colored glass filter for long wavelength region correction,
Combined with the excellent performance characteristics of the photovoltaic element as a photoelectric conversion device for an illuminance meter, there is an advantage that a highly sensitive and highly reliable illuminometer can be provided.

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

第1図はシリコン光起電力素子の分光感度特性と視感度
曲線、及び前記シリコン光起電力素子とシアンブルーガ
ラスフィルタとを組合せた分光感度特性を示す図、第2
図は油溶性モノアゾ染料の吸収スペクトルを示す図、第
3図は本発明による照度計用光検出装置の分光感度特性
を示す図、第4図は本発明による照度計用光検出器の一
実施例の構造を示す図である。 1・・・・・・絶縁性ステム、2・・・・・・シリコン
光起電力素子、3・・・・・・金線、4・・・・・・油
溶性モノアゾ染料を添加したエポキシ樹脂、6・・・・
・・色ガラスフィルタ。 第1図 男 *へ(nrn) 第2図 う次長(nrn) 3図 4図
FIG. 1 is a diagram showing the spectral sensitivity characteristics and visibility curve of a silicon photovoltaic device, and the spectral sensitivity characteristics of a combination of the silicon photovoltaic device and a cyan blue glass filter.
Figure 3 shows the absorption spectrum of an oil-soluble monoazo dye, Figure 3 shows the spectral sensitivity characteristics of the photodetector for illuminometer according to the present invention, and Figure 4 shows an implementation of the photodetector for illuminometer according to the present invention. FIG. 3 is a diagram showing an example structure. 1...Insulating stem, 2...Silicon photovoltaic element, 3...Gold wire, 4...Epoxy resin added with oil-soluble monoazo dye , 6...
・・Colored glass filter. Figure 1 To the man* (nrn) Figure 2 Deputy Director (nrn) Figure 3 Figure 4

Claims (2)

【特許請求の範囲】[Claims] (1) PN接合形シリコン光電変換素子と、視感度補
正用ガラスフィルタ及び視感度補正用染料で構成したこ
とを特徴とする照度計用光電変換装置。
(1) A photoelectric conversion device for an illumination meter, comprising a PN junction silicon photoelectric conversion element, a glass filter for correcting visibility, and a dye for correcting visibility.
(2)前記視感度補正用ガラスフィルタが、シアンブル
ーガラスフィルタよりなる特許請求の範囲第1項に記載
の照度計用光電変換装置。′轢)前記視感度補正用染料
が、透明樹脂中に添加された油溶性モノアゾ染料よりな
る特許請求の範囲第1項に記載の照度計用光電変換装置
(2) The photoelectric conversion device for an illumination meter according to claim 1, wherein the visibility correction glass filter is a cyan-blue glass filter. 1. The photoelectric conversion device for an illuminometer according to claim 1, wherein the visibility correction dye is an oil-soluble monoazo dye added to a transparent resin.
JP56131136A 1981-08-20 1981-08-20 Photoelectric transducer for illuminometer Pending JPS5832130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56131136A JPS5832130A (en) 1981-08-20 1981-08-20 Photoelectric transducer for illuminometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56131136A JPS5832130A (en) 1981-08-20 1981-08-20 Photoelectric transducer for illuminometer

Publications (1)

Publication Number Publication Date
JPS5832130A true JPS5832130A (en) 1983-02-25

Family

ID=15050828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56131136A Pending JPS5832130A (en) 1981-08-20 1981-08-20 Photoelectric transducer for illuminometer

Country Status (1)

Country Link
JP (1) JPS5832130A (en)

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