JPH031249B2 - - Google Patents
Info
- Publication number
- JPH031249B2 JPH031249B2 JP16392385A JP16392385A JPH031249B2 JP H031249 B2 JPH031249 B2 JP H031249B2 JP 16392385 A JP16392385 A JP 16392385A JP 16392385 A JP16392385 A JP 16392385A JP H031249 B2 JPH031249 B2 JP H031249B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- light source
- solarization
- nio
- ultraviolet
- 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
Links
- 239000011521 glass Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 claims description 2
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 239000008280 blood Substances 0.000 description 8
- 210000004369 blood Anatomy 0.000 description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 238000000411 transmission spectrum Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000006121 base glass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は血液分析装置などの如く、光源からの
赤外線を遮断し、340nｍ近傍の紫外線を利用す
る機器に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a device, such as a blood analyzer, which blocks infrared rays from a light source and utilizes ultraviolet rays in the vicinity of 340 nm.
［従来の技術］
例えば、血液分析装置では、光源からの340n
ｍ近傍の紫外線を利用するが、同時に光源から発
せられる赤外線を遮断する必要がある。この目的
のためにこれまで２価のFeイオンの赤外線域吸
収バンドを利用したいわゆる“熱線吸収ガラス”
が用いられて来た。[Prior art] For example, in a blood analyzer, 340n from a light source
It uses ultraviolet rays in the vicinity of m, but at the same time it is necessary to block infrared rays emitted from the light source. For this purpose, so-called "heat-absorbing glasses" have been developed that utilize the infrared absorption band of divalent Fe ions.
has been used.
しかし、このガラスは光源からの強い紫外線を
受けるとソーラリゼーシヨンを起こし、340nｍ
を含む紫外線にかなり強い吸収を生じる。その結
果、光源からの紫外線を有効に利用できなくな
る。しかもその度合いは照射時間と共に強まるた
め、血液分析装置の信頼性にも大きく影響する。 However, when this glass is exposed to strong ultraviolet rays from a light source, it causes solarization and
It has a fairly strong absorption of ultraviolet light, including ultraviolet light. As a result, the ultraviolet rays from the light source cannot be used effectively. Furthermore, since the degree of irradiation increases with the irradiation time, it greatly affects the reliability of the blood analyzer.
［問題点を解決するための手段］
本発明者は、２価のFeイオンの赤外域吸収の
バンドを利用したいわゆる“熱線吸収ガラス”の
基礎組成と、ソーラリゼーシヨンの関係について
詳細に検討してみたが、基礎組成によつてソーラ
リゼーシヨンの程度に多少の差は認められるもの
の、基礎組成の改良だけては実用上問題にならな
いレベルにまでソーラリゼーシヨンを抑えること
は極めて難しいことが分かつた。[Means for Solving the Problems] The present inventor conducted a detailed study on the relationship between the basic composition of so-called "heat ray absorbing glass" that utilizes the infrared absorption band of divalent Fe ions and solarization. However, although there are some differences in the degree of solarization depending on the basic composition, it is extremely difficult to suppress solarization to a level that does not pose a practical problem just by improving the basic composition. I found out.
一般に紫外線透過ガラスは、紫外線照射によつ
て生じる正孔を２価のFeイオンが捕獲するため
に、ソーラリゼーシヨンを起こす訳である。特に
“熱線吸収ガラス”の場合、熱線吸収効率を高め
るために２価のFeイオンが多量に含有せしめら
れているため、基礎組成にはさほど関係なく、紫
外線照射によつてソーラリゼーシヨンの原因であ
る正孔が容易に生じるものと思われる。 In general, ultraviolet-transmissive glass causes solarization because divalent Fe ions capture holes generated by ultraviolet irradiation. In particular, in the case of "heat ray absorbing glass", it contains a large amount of divalent Fe ions in order to increase the heat ray absorption efficiency, so it is not related to the basic composition and is the cause of solarization due to ultraviolet irradiation. It seems that holes are easily generated.
そこで、本発明は血液分析装置などで要求され
るガラスの基本特性（紫外線を透過し、赤外線を
遮断し、ソーラリゼーシヨンを起こしにくく、か
つ耐熱性があること）に立ち返り、この基本特性
を満足するガラスが作れないかどうか、詳細に検
討した、その結果低膨張の燐酸含有ガラスにNi
を添加し（場合によつてはCoも少量添加した方
が好ましい）、酸化性雰囲気で溶解したガラスで
あれば、上記の特性を満足することが分かつた。
このガラスは“熱線吸収ガラス”と異なり、可視
光をほとんど透過しないが、血液分析装置などで
要求されるガラスの基本特性（紫外線を透過し、
赤外線を遮断し、ソーラリゼーシヨンを起こしに
くく、かつ耐熱性があること）を充分に満足す
る。 Therefore, the present invention went back to the basic characteristics of glass required for blood analyzers, etc. (transmits ultraviolet rays, blocks infrared rays, is resistant to solarization, and is heat resistant), and improved these basic characteristics. We conducted a detailed study to determine whether it was possible to create a glass that would satisfy our needs, and the results showed that Ni was used in low-expansion phosphoric acid-containing glass.
(In some cases, it is preferable to add a small amount of Co as well.) It was found that glass melted in an oxidizing atmosphere satisfies the above characteristics.
Unlike heat-absorbing glass, this glass hardly transmits visible light; however, it has the basic characteristics of glass required for blood analyzers, etc.
(blocks infrared rays, does not easily cause solarization, and is heat resistant).
このガラスがソーラリゼーシヨンを起こしにく
いのは、正孔捕獲中心となる２価のFeイオンな
どが少ないことによる。 The reason why this glass is difficult to cause solarization is because there are few divalent Fe ions, which act as hole-trapping centers.
本発明のガラスには、Niが添加（場合によつ
てはCoも少量添加した方が好ましい）されるこ
とが必須であるが、その基礎ガラスは次に示す燐
酸系ガラスが最適である。 Although it is essential that Ni be added to the glass of the present invention (it is preferable to add a small amount of Co in some cases), the following phosphoric acid glass is optimal as the base glass.
即ち、wt％表示で、
35≦P2O5 ≦70
５≦SiO2 ≦40
５≦Al2O3 ≦25
０≦B2O3 ≦20
０≦R2O3 ≦15
０≦RO ≦15
から成り、これらの成分の合計量が少なくとも
95wt％以上である燐酸系ガラスである。但し、
R2O3は、Ga2O3、Y2O3、La2O3、Gd2O3の内の
少なくとも一つを示し、ROはアルカリ土類金属
などの２価金属の酸化物の内の少なくとも一つを
示す。 That is, in wt% display, 35≦P 2 O 5 ≦70 5≦SiO 2 ≦40 5≦Al 2 O 3 ≦25 0≦B 2 O 3 ≦20 0≦R 2 O 3 ≦15 0≦RO ≦15 and the total amount of these components is at least
It is a phosphoric acid glass with a content of 95wt% or more. however,
R 2 O 3 represents at least one of Ga 2 O 3 , Y 2 O 3 , La 2 O 3 , and Gd 2 O 3 , and RO represents one of divalent metal oxides such as alkaline earth metals. indicates at least one of the following.
そして、上記の基礎ガラスに０＜NiO≦15、０
≦CoO≦15の範囲でNiOおよびCoOを外割り添加
することによつて、血液分析装置などの機器に必
要な透過性を持つたガラスを自由に作ることがで
きる。 Then, 0<NiO≦15, 0
By adding NiO and CoO in the range of ≦CoO≦15, it is possible to freely create glass with the transparency necessary for devices such as blood analyzers.
例えば、55P2O5−26SiO2−4B2O3−15Al2O3−
5NiO−0.5CoOという組成であれば、図面に示し
たような透過特性を持つことになる。比較のため
に、“熱線吸収ガラス”の透過特性も図面に併せ
て示した。 For example, 55P 2 O 5 −26SiO 2 −4B 2 O 3 −15Al 2 O 3 −
If the composition is 5NiO−0.5CoO, it will have the transmission characteristics shown in the drawing. For comparison, the transmission characteristics of "heat ray absorbing glass" are also shown in the drawing.
［実施例］
光源に、400wの高圧水銀ランプを用いて、従
来から血液分析装置などで用いられていた“熱線
吸収ガラス”及び本発明で使用可能なガラスの一
例たる下記の特性を有するガラスを100Hr照射し
た。[Example] Using a 400W high-pressure mercury lamp as a light source, we used "heat ray absorbing glass" conventionally used in blood analyzers, etc. and glass having the following characteristics, which is an example of glass that can be used in the present invention. Irradiated for 100 hours.
(a) 組成：55P2O5−26SiO2−4B2O3−15Al2O3−
5NiO−0.5CoO
(b) 紫外線照射前の透過スペクトル；図面参照
(c) 膨張係数：50×10-7／℃
(d) 耐酸性、耐水性：共に１等級
その結果、340nｍでの透過率は前者の場合、
82％から57％まで低下するが、後者の場合、80％
から78％までで、前者ほどのソーラリゼーシヨン
による透過率の低下は認められない。従つて、本
発明で提案されるガラスは、紫外線を利用する機
器の信頼性を大幅に向上させことが実証された。
また本発明のガラスは光源からの熱によつて割れ
ることもなく、光源からの赤外線を遮断し、ソー
ラリゼーシヨンを起すことなく紫外線を透過する
ので、紫外線を利用する機器用として、充分使用
できる。(a) Composition: 55P 2 O 5 −26SiO 2 −4B 2 O 3 −15Al 2 O 3 −
5NiO−0.5CoO (b) Transmission spectrum before UV irradiation; see drawing (c) Expansion coefficient: 50×10 -7 /℃ (d) Acid resistance and water resistance: both grade 1 As a result, the transmittance at 340 nm is In the former case,
from 82% to 57%, but in the latter case, 80%
to 78%, and the decrease in transmittance due to solarization is not as noticeable as in the former case. Therefore, it has been demonstrated that the glass proposed in the present invention significantly improves the reliability of equipment that utilizes ultraviolet light.
In addition, the glass of the present invention does not break due to heat from the light source, blocks infrared rays from the light source, and transmits ultraviolet rays without causing solarization, so it can be used for equipment that uses ultraviolet rays. can.
［発明の効果］
血液分析装置など光源からの赤外線を遮断して
紫外線を利用する機器において、従来から一般的
に用いられていたいわゆる“熱線吸収ガラス”の
代わりに本発明のガラスを使用すれば、このガラ
スは赤外線を吸収して紫外線を透過する透過特性
を有し、かつ70×10-7／℃以下であるのでソーラ
リゼーシヨンなどの問題が解決でき、機器への信
頼性を大幅に向上させることができる。[Effects of the invention] If the glass of the present invention is used in place of the so-called "heat ray absorbing glass" that has been commonly used in devices that block infrared rays from light sources and utilize ultraviolet rays, such as blood analyzers, This glass has a transmission property of absorbing infrared rays and transmitting ultraviolet rays, and its temperature is below 70 x 10 -7 /℃, so it can solve problems such as solarization and greatly improve the reliability of equipment. can be improved.
添付図面はいわゆる“熱線吸収ガラス”と本発
明で使用される紫外線透過赤外線吸収耐熱性ガラ
スの紫外線照射透過スペクトルである。
The attached drawings show ultraviolet radiation transmission spectra of so-called "heat-absorbing glass" and the ultraviolet-transmitting, infrared-absorbing, heat-resistant glass used in the present invention.
Claims (1)
光源と照射すべき物体の間に、赤外線を吸収して
紫外線を透過する透過特性を有し、かつ膨張係数
が70×10-7／℃以下であるNiO含有ガラスを配置
することを特徴とする機器。 ２ 特許請求の範囲第１項の記載の機器におい
て、前記ガラスがwt％表示で、 35≦P2O5 ≦70 ５≦SiO2 ≦40 ５≦Al2O3 ≦25 ０≦B2O3 ≦20 ０≦R2O3 ≦15 ０≦RO ≦15 の範囲で上記成分を含有し、その合計量が少なく
とも95wt％以上である基礎ガラスに、０＜NiO
≦15、０≦CoO≦15の範囲でNiOおよびCoOを外
割りで添加した組成を有することを特徴とする機
器（但し、R2O3はGa2O3、Y2O3、La2O3、
Gd2O3の内の少なくとも一つを示し、ROはアル
カリ土類金属など２価金属の酸化物の内の少なく
とも一つを示す）。[Claims] 1. In a device that uses ultraviolet light from a light source,
A NiO-containing glass having a transmission property of absorbing infrared rays and transmitting ultraviolet rays and having an expansion coefficient of 70×10 -7 /°C or less is placed between the light source and the object to be irradiated. device. 2. In the device according to claim 1, the glass is expressed in wt%, and 35≦P 2 O 5 ≦70 5≦SiO 2 ≦40 5≦Al 2 O 3 ≦25 0≦B 2 O 3 0 < NiO
≦15, 0≦CoO≦15, a device characterized by having a composition in which NiO and CoO are added in proportion (however, R 2 O 3 is Ga 2 O 3 , Y 2 O 3 , La 2 O 3 ,
RO represents at least one of the oxides of divalent metals such as alkaline earth metals).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16392385A JPS6265951A (en) | 1985-07-26 | 1985-07-26 | Ultraviolet transmittable and infrared absorptive heat resistant glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16392385A JPS6265951A (en) | 1985-07-26 | 1985-07-26 | Ultraviolet transmittable and infrared absorptive heat resistant glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6265951A JPS6265951A (en) | 1987-03-25 |
| JPH031249B2 true JPH031249B2 (en) | 1991-01-10 |
Family
ID=15783388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16392385A Granted JPS6265951A (en) | 1985-07-26 | 1985-07-26 | Ultraviolet transmittable and infrared absorptive heat resistant glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6265951A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000038422A (en) * | 1998-12-07 | 2000-07-05 | 김영건 | Multi-functional far-infrared radiating material composition |
| CN106977096A (en) * | 2017-05-18 | 2017-07-25 | 南通市国光光学玻璃有限公司 | The optical glass of ultraviolet band high transmission and resistance to ultraviolet irradiation |
| CN106966590A (en) * | 2017-05-18 | 2017-07-21 | 南通市国光光学玻璃有限公司 | The preparation method of the optical glass of ultraviolet band high transmission and resistance to ultraviolet irradiation |
| CN110066107B (en) * | 2019-03-04 | 2021-12-03 | 南通市国光光学玻璃有限公司 | Preparation method of high-transmittance optical glass with visible light deep cutoff |
-
1985
- 1985-07-26 JP JP16392385A patent/JPS6265951A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6265951A (en) | 1987-03-25 |
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