JPH0217494B2 - - Google Patents
Info
- Publication number
- JPH0217494B2 JPH0217494B2 JP59201812A JP20181284A JPH0217494B2 JP H0217494 B2 JPH0217494 B2 JP H0217494B2 JP 59201812 A JP59201812 A JP 59201812A JP 20181284 A JP20181284 A JP 20181284A JP H0217494 B2 JPH0217494 B2 JP H0217494B2
- Authority
- JP
- Japan
- Prior art keywords
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- weight
- glass
- parts
- cao
- 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
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- 239000011521 glass Substances 0.000 claims abstract description 35
- 230000005484 gravity Effects 0.000 claims abstract description 9
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000006121 base glass Substances 0.000 claims abstract description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 3
- VQCBHWLJZDBHOS-UHFFFAOYSA-N erbium(III) oxide Inorganic materials O=[Er]O[Er]=O VQCBHWLJZDBHOS-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 7
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- 239000006103 coloring component Substances 0.000 claims description 5
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims description 3
- 229910017493 Nd 2 O 3 Inorganic materials 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 6
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052681 coesite Inorganic materials 0.000 abstract description 3
- 238000004040 coloring Methods 0.000 abstract description 3
- 229910052593 corundum Inorganic materials 0.000 abstract description 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 3
- 229910052682 stishovite Inorganic materials 0.000 abstract description 3
- 229910052905 tridymite Inorganic materials 0.000 abstract description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 abstract description 2
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 abstract description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 2
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 abstract 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 abstract 1
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium oxide Inorganic materials [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 abstract 1
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 abstract 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 abstract 1
- 238000002834 transmittance Methods 0.000 description 7
- 230000003595 spectral effect Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 208000003464 asthenopia Diseases 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004031 devitrification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- -1 B 2 O 3 Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004017 vitrification Methods 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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
-
- 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
- C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
- C03C3/061—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz by leaching a soluble phase and consolidating
-
- 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
-
- 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
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
-
- 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
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
- C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
-
- 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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
-
- 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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C7/108—Colouring materials
Abstract
Description
［発明の利用分野］
本発明はCRT表示装置の青色、緑色及び赤色
を鮮かなコントラストで観察することができ、従
つて観察者の眼の疲労を軽減させることができる
カラーコントラスト眼鏡レンズ用ガラス組成物に
関する。
［従来技術］
近年、オフイスオートメーシヨン用機器として
各種のカラーCRT表示管が使用されているが、
使用者の眼の疲労による身体障害が新たな社会問
題となつて来ている。この種の問題に対する一つ
の解決法は、カラーコントラストフイルターをカ
ラーCRT表示装置に装着するもので、特開昭58
−49641号公報には、カラーCRT表示装置に使用
して周囲光の反射光を抑え、優れたコントラスト
増加効果を発揮するフイルター用ガラスが提案さ
れている。しかしながら、この種のフイルターを
CRT表示装置の画面全体に装着することは、経
済的にみて必ずしも好ましいものではない。
［発明の目的］
本発明の目的はカラーCRT用眼鏡レンズと使
用可能な、具体的には高コントラスト性を有し、
しかも高屈析率、低分散、低比重といつた眼鏡レ
ンズとして望ましい特性を具えたガラス組成物を
提供することにある。
［発明の構成］
本発明のガラス組成物は高屈析率、低分散、低
比重という特性を持つたSiO2−CaO（又はLi2O）
−TiO2（又はNb2O5）系を基本系とするガラス
に、カラーCRTの蛍光管から発せられる青、緑、
赤の３色を透過するも、それ以外の波長の光を選
択的に吸収するNb2O3を必須成分として配合し、
さらにCeO2、CuO、MnO2、CoO、Fe2O3、
NiO、Er2O3及びSm2O3から選ばれる着色成分の
少なくとも１種を配合して透過率及び色調を調整
して成る。
すなわち、本発明のカラーコントラスト眼鏡レ
ンズ用ガラスは、重量％でSiO2 3070％、B2O3
０〜35％、Al2O3 ０〜20％、SiO2＋B2O3＋
Al2O3 20〜70％、Li2O ０〜15％、CaO ０〜45
％、MgO ０〜20％、Li2O＋CaO＋MgO ２〜45
％、TiO2 ０〜20％、ZrO2 ０〜13％、Nb2O5 ５
〜35％、TiO2＋ZrO2＋Nb2O5 10.5〜35％、
Na2O＋K2O ０〜20％、SrO＋BaO＋ZnO ０〜
20％ La2O3＋Y2O3 ０〜20％、Ta2O5＋WO3
０〜15％及びNd2O30.1〜33％からなる基礎ガラ
ス100重量部に対し、重量％で6.0以下のCeO2、
1.0％以下のCuO、3.5％以下のMnO2、0.15％以下
のCoO、3.0％以下のFe2O3、1.5％以下のNiO、
10.0％以下のEr2O3及び10.0％以下のSm2O3から
ら選ばれる着色成分の少なくとも１種を0.1％以
上配合してなり、しかも1.59以上の屈析率と32％
以上のアツベ数と3.7以下の比重を有しているこ
とで特徴付けられる。
本発明のガラスを構成する成分の役割とその量
的限定理由は次の通りである。
SiO2はガラスの主要骨格を形成する成分であ
り、その量が70％を越えると屈析率が低下し、３
％未満では多量のB2O3が共存しない限りガラス
化せず、従つて化学的耐久性が劣化する。
B2O3はSiO2に代わり得るガラス網目形成成分
であり、またNb2O3の溶解度を増大させる作用が
あるので、35％まで導入できるが、この量を越え
ると化学的耐久性が悪化する。
Al2O3はガラスの化学的耐久性や機械的強度を
向上させ、また光吸収を強める効果や分相抑制効
果を有しているが、その量が20％を越えるとガラ
スが不安定になる。SiO2、B2O3、Al2O3の合量
は、所望の高屈析率を維持するうえで、70％を越
えてはならないが、20％未満ではガラス化しな
い。Li2O、CaO及びMgOは軽量ガラスを得るの
に有効な成分であり、合量で２％以上必要である
が、それぞれ15％、45％及び20％を越えるとガラ
スが不安定になり、合量でも45％を越えてはなら
ない。TiO2、ZrO2及びNb2O5は高屈析率の軽量
ガラスを得るのに有効な成分であるが、TiO2及
びNb2O5それぞれ20％及び35％を越えるとアツベ
数が小さくなりすぎ、ZrO2は13％を越えると溶
融性及び耐失透性が悪化する。また、Nb2O5が５
％未満で、かつTiO2、ZrO2及びNb2O5の合量が
10.5％未満の場合には、所望の高屈析率を得るこ
とができず、35％を越えるとアツベ数が小さくな
りすぎる。
Na2O、K2O、SrO、BaO、ZnO、La2O3、
Y2O3、Ta2O5及びWO3の各成分は、いずれも本
発明のガラスにとつて必須成分ではないが、溶融
性や耐失透性の改善、光学恒数の調整などで添加
可能である。しかし、これら成分はいずれもガラ
スの比重を大きくする成分なので、Na2O及び
K2Oは合量で20％以下、SrO、BaO及びZnOは合
量で20％以下、La2O3及びY2O3は合量で20％以
下、そしてTa2O5及びWO3は合量で15％以下に
制限される。
Nb2O3はカラーCRTの青、緑、赤の３色光を
透過し、それ以外の波長光、特に視感度の高い黄
色光を吸収するため、高コントラストを得ると共
に眼の疲労を軽減する働きを有する必須成分であ
つて、その機能を発現させるためには0.1％以上
の配合を必要とする。しかし、33％を越えるとガ
ラスが不安定になるばかりでなく、比重も大きく
なりすぎる。
また、CeO2、CuO、MnO2、CoO、Fe2O3、
NiO、Er2O3及びSm2O3の各着色成分は透過率及
び色調の調整に有効であるが、基礎ガラス100重
量部に対しそれぞれ6.0％、1.0％、3.5％、0.15
％、3.0％、1.5％、10.0％及び10.0％を越えると
着色濃度が高くなりすぎて好ましくない。しか
し、Nb2O3単独では強いマゼンタ色及至青色を呈
するので、カラーCRT映像のカラーバランスを
よくするためには、上記着色成分の少なくとも１
種を0.1％以上添加することが必須である。なお、
本発明のガラスには、通常のガラスの場合と同
様、脱泡その他の目的で少量のAs2O3、Sb2O3、
Ｆなどを添加することができる。
［実施例］
一般的なガラス原料である酸化物、炭酸塩、硝
酸塩及び水酸化物等を使用してこれら原料をよく
混合し、セラミツク又は白金製のルツボ又はタン
ク炉で1300〜1450℃で溶融し、撹拌し、清澄均質
化した後、所定の形状に成形して除冷することに
より、次表に示す組成（重量％）の眼鏡用ガラス
を得た。
また、実施例No.４のガラスの分光透過率と３色
蛍光体の発色分光エネルギ分布を測定した結果を
第１図に示し、同じくNo.２、No.３およびNo.６のガ
ラスの分光透過率曲線を第２図に示す。次表並び
に第１図、第２図から明らかなように、カラー
CRT映像の発光ピーク波長以外の波長光を吸収
してコントラスト比を高め、かつ眼鏡の装着異和
感を緩和させるために、高屈率で低比重、すなわ
ち肉厚を薄くし、かつ軽量化しうる眼鏡用ガラス
を提供することができた。
[Field of Application of the Invention] The present invention provides a glass composition for a color contrast eyeglass lens that allows the blue, green, and red colors of a CRT display device to be observed with vivid contrast, thereby reducing eye fatigue of the observer. relating to things. [Prior Art] In recent years, various color CRT display tubes have been used as office automation equipment.
Physical disability due to eye fatigue of users is becoming a new social problem. One solution to this kind of problem is to attach a color contrast filter to the color CRT display,
Japanese Patent No. 49641 proposes a filter glass that can be used in color CRT display devices to suppress reflected ambient light and exhibit an excellent contrast-increasing effect. However, this type of filter
It is not necessarily desirable from an economic standpoint to attach the entire screen of a CRT display device. [Object of the Invention] The object of the present invention is to provide a lens that can be used with a color CRT spectacle lens, specifically has high contrast,
Moreover, it is an object of the present invention to provide a glass composition having desirable properties as a spectacle lens, such as a high refractive index, low dispersion, and low specific gravity. [Structure of the Invention] The glass composition of the present invention contains SiO 2 −CaO (or Li 2 O), which has the characteristics of high refractive index, low dispersion, and low specific gravity.
-TiO 2 (or Nb 2 O 5 )-based glass is coated with blue, green, and
Contains Nb 2 O 3 as an essential component, which transmits the three colors of red but selectively absorbs light of other wavelengths.
Furthermore, CeO 2 , CuO, MnO 2 , CoO, Fe 2 O 3 ,
It is made by blending at least one coloring component selected from NiO, Er 2 O 3 and Sm 2 O 3 to adjust the transmittance and color tone. That is, the color contrast glass for eyeglass lenses of the present invention contains 3070% SiO 2 and B 2 O 3 by weight.
0-35%, Al2O3 0-20%, SiO2 + B2O3 +
Al 2 O 3 20-70%, Li 2 O 0-15%, CaO 0-45
%, MgO 0-20%, Li 2 O + CaO + MgO 2-45
%, TiO 2 0-20%, ZrO 2 0-13%, Nb 2 O 5 5
~35%, TiO2 + ZrO2 + Nb2O5 10.5 ~35%,
Na 2 O + K 2 O 0~20%, SrO + BaO + ZnO 0~
20% La 2 O 3 + Y 2 O 3 0-20%, Ta 2 O 5 + WO 3
0 to 15% and 100 parts by weight of the base glass consisting of 0.1 to 33% of Nd 2 O 3 , CeO 2 of 6.0 or less in weight %,
1.0% or less CuO , 3.5% or less MnO2 , 0.15% or less CoO, 3.0% or less Fe2O3 , 1.5% or less NiO,
Contains 0.1% or more of at least one coloring component selected from 10.0% or less Er 2 O 3 and 10.0% or less Sm 2 O 3 , and has a refractive index of 1.59 or more and 32%
It is characterized by having an Atsube number of 3.7 or less and a specific gravity of 3.7 or less. The roles of the components constituting the glass of the present invention and the reasons for their quantitative limitations are as follows. SiO 2 is a component that forms the main skeleton of glass, and when its amount exceeds 70%, the refractive index decreases and
If it is less than %, vitrification will not occur unless a large amount of B 2 O 3 coexists, and therefore chemical durability will deteriorate. B 2 O 3 is a glass network forming component that can replace SiO 2 and has the effect of increasing the solubility of Nb 2 O 3 , so it can be incorporated up to 35%, but if it exceeds this amount, chemical durability will deteriorate. do. Al 2 O 3 improves the chemical durability and mechanical strength of glass, and also has the effect of strengthening light absorption and suppressing phase separation, but if the amount exceeds 20%, the glass becomes unstable. Become. The total amount of SiO 2 , B 2 O 3 , and Al 2 O 3 should not exceed 70% in order to maintain the desired high refractive index, but if it is less than 20%, it will not vitrify. Li 2 O, CaO, and MgO are effective components for obtaining lightweight glass, and a total amount of 2% or more is required, but if they exceed 15%, 45%, and 20%, respectively, the glass becomes unstable. The total amount must not exceed 45%. TiO 2 , ZrO 2 and Nb 2 O 5 are effective components for obtaining lightweight glass with a high refractive index, but when TiO 2 and Nb 2 O 5 exceed 20% and 35%, respectively, the Atsube number decreases. If ZrO 2 exceeds 13%, the meltability and devitrification resistance will deteriorate. Also, Nb 2 O 5 is 5
%, and the total amount of TiO 2 , ZrO 2 and Nb 2 O 5 is
If it is less than 10.5%, the desired high refractive index cannot be obtained, and if it exceeds 35%, the Atsube number becomes too small. Na2O , K2O , SrO, BaO, ZnO, La2O3 ,
None of the components Y 2 O 3 , Ta 2 O 5 and WO 3 are essential components for the glass of the present invention, but they are added to improve meltability and devitrification resistance, adjust optical constants, etc. It is possible. However, these components all increase the specific gravity of the glass, so Na 2 O and
K 2 O is 20% or less in total, SrO, BaO and ZnO are 20% or less in total, La 2 O 3 and Y 2 O 3 are 20% or less in total, and Ta 2 O 5 and WO 3 are The total amount is limited to 15% or less. Nb 2 O 3 transmits the three colors of blue, green, and red light from a color CRT, and absorbs light of other wavelengths, especially yellow light, which has high visibility, so it works to obtain high contrast and reduce eye fatigue. It is an essential component with 0.1% or more in order to express its function. However, if it exceeds 33%, not only will the glass become unstable, but the specific gravity will also become too large. Also, CeO 2 , CuO, MnO 2 , CoO, Fe 2 O 3 ,
Each coloring component of NiO, Er 2 O 3 and Sm 2 O 3 is effective for adjusting transmittance and color tone, but their content is 6.0%, 1.0%, 3.5%, and 0.15%, respectively, based on 100 parts by weight of the basic glass.
%, 3.0%, 1.5%, 10.0%, and 10.0%, the color density becomes too high and is not preferred. However, Nb 2 O 3 alone produces a strong magenta or blue color, so in order to improve the color balance of color CRT images, it is necessary to use at least one of the above coloring components.
It is essential to add 0.1% or more of seeds. In addition,
As in the case of ordinary glass, the glass of the present invention contains small amounts of As 2 O 3 , Sb 2 O 3 ,
F etc. can be added. [Example] Common glass raw materials such as oxides, carbonates, nitrates, and hydroxides are mixed well and melted at 1300 to 1450°C in a ceramic or platinum crucible or tank furnace. After stirring, clarifying and homogenizing, the mixture was molded into a predetermined shape and slowly cooled to obtain glass for glasses having the composition (% by weight) shown in the following table. In addition, the results of measuring the spectral transmittance of the glass of Example No. 4 and the coloring spectral energy distribution of the three-color phosphor are shown in FIG. The transmittance curve is shown in FIG. As is clear from the table below and Figures 1 and 2, the color
In order to increase the contrast ratio by absorbing light at wavelengths other than the emission peak wavelength of CRT images, and to alleviate the discomfort of wearing glasses, it has a high refractive index and low specific gravity, that is, it has a thin wall thickness and can be lightweight. We were able to provide glasses for glasses.
【表】
［発明の効果］
前掲の表から明らかな通り、本発明のガラスは
屈析率、アツベ数及び比重の点で眼鏡レンズ用ガ
ラスとしての適性を備え、しかも図面に示す分光
透過率から首肯される如く、本発明のガラスは
青、緑、赤の３色光をよく分離する。従つて、こ
のガラスから加工された眼鏡レンズでカラー
CRT表示装置を目視すれば、コントラストの良
い映像を得ることができ、また視感度の大きい黄
色光は吸収されるので、目の疲労を軽減する効果
が約束される。[Table] [Effects of the Invention] As is clear from the above table, the glass of the present invention is suitable as a glass for eyeglass lenses in terms of refractive index, Atsube's number, and specific gravity, and moreover, from the spectral transmittance shown in the drawings. As can be seen, the glass of the present invention separates blue, green, and red light well. Therefore, it is possible to use colored eyeglass lenses made from this glass.
When viewing a CRT display device, you can obtain images with good contrast, and since yellow light, which has high visibility, is absorbed, it promises to reduce eye fatigue.
第１図は本発明の実施例No.４で得たガラスの分
光透過率と３色蛍光体の発色分光エネルギー分布
を示す線図、第２図は実施例No.２、No.３およびNo.
６で得たガラスの分光透過率線図である。
FIG. 1 is a diagram showing the spectral transmittance of the glass obtained in Example No. 4 of the present invention and the coloring spectral energy distribution of the three-color phosphor, and FIG. .
6 is a spectral transmittance diagram of the glass obtained in step 6. FIG.
Claims (1)
なる基礎ガラス100重量部に対し、重量％で6.0以
下のCeO2、1.0％以下のCuO、3.5％以下の
MnO2、0.15％以下のCoO、3.0％以下のFe2O3、
1.5％以下のNiO、10.0％以下のEr2O3及び10.0％
以下のSm2O3から選ばれる着色成分の少なくと
も１種を0.1％以上配合してなり、屈折率1.59以
上、アツベ数32以上、比重3.7以下のカラーコン
トラスト眼鏡レンズ用ガラス。[Claims] 1% by weight: SiO 2 3-70%, B 2 O 3 0-35%, Al 2 O 3 0-20%, SiO 2 +B 2 O 3 +Al 2 O 3 20-70%, Li 2 O 0-15%, CaO 0-45%, MgO 0-20%, Li 2 O + CaO + MgO 2-45%, TiO 2 0-20%, ZrO 2 0-13%, Nb 2 O 5 5-35% , TiO 2 + ZrO 2 + Nb 2 O 5 10.5-35%, Na 2 O + K 2 O 0-20%, SrO + BaO + ZnO 0-20%, La 2 O 3 + Y 2 O 3 0-20%, Ta 2 O 5 + WO 3 0 ~15% and 0.1 to 33% Nd 2 O 3 for 100 parts by weight of the base glass, in weight percent less than 6.0 CeO 2 , less than 1.0% CuO, less than 3.5%
MnO2 , 0.15% or less CoO, 3.0% or less Fe2O3 ,
NiO less than 1.5%, Er2O3 less than 10.0% and 10.0%
A color contrast glass for eyeglass lenses, which contains 0.1% or more of at least one coloring component selected from the following Sm 2 O 3 , has a refractive index of 1.59 or more, an Atsube's number of 32 or more, and a specific gravity of 3.7 or less.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20181284A JPS6183645A (en) | 1984-09-28 | 1984-09-28 | Glass for lens of color contrast spectacles |
| DE19853534575 DE3534575A1 (en) | 1984-09-28 | 1985-09-27 | Glass for spectacle lenses with increased colour contrast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20181284A JPS6183645A (en) | 1984-09-28 | 1984-09-28 | Glass for lens of color contrast spectacles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6183645A JPS6183645A (en) | 1986-04-28 |
| JPH0217494B2 true JPH0217494B2 (en) | 1990-04-20 |
Family
ID=16447317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20181284A Granted JPS6183645A (en) | 1984-09-28 | 1984-09-28 | Glass for lens of color contrast spectacles |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS6183645A (en) |
| DE (1) | DE3534575A1 (en) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4769347A (en) * | 1986-01-06 | 1988-09-06 | Schott Glass Technologies, Inc. | Contrast enhancement filter glass for color CRT displays |
| HUT52466A (en) * | 1987-12-14 | 1990-07-28 | Aleksandr Sergeevich Sergeev | Electrode glass |
| JP2512366B2 (en) * | 1992-03-17 | 1996-07-03 | 株式会社オハラ | High dispersion optical glass |
| JP2795333B2 (en) * | 1992-10-08 | 1998-09-10 | 株式会社オハラ | Optical glass |
| FR2774679B1 (en) * | 1998-02-11 | 2000-04-14 | Saint Gobain Vitrage | SILICO-SODO-CALCIUM GLASS COMPOSITIONS |
| US6235666B1 (en) * | 1999-03-29 | 2001-05-22 | Guardian Industries Corporation | Grey glass composition and method of making same |
| FR2793241B1 (en) * | 1999-05-06 | 2002-03-08 | Corning Inc | BORATE GLASS COMPOSITION DOPED WITH ERBIUM |
| DE19920865C1 (en) * | 1999-05-06 | 2000-06-29 | Schott Glas | Lead-free optical borosilicate glass, for optical equipment and optical data applications, contains barium, zinc, titanium, niobium and rare earth oxides and has a high refractive index and a low Abbe number |
| US6521558B2 (en) * | 2001-01-23 | 2003-02-18 | Guardian Industries Corp. | Grey glass composition including erbium |
| JP4034589B2 (en) * | 2001-06-06 | 2008-01-16 | 株式会社オハラ | Optical glass |
| US6498118B1 (en) * | 2001-06-27 | 2002-12-24 | Guardian Industries Corp. | Grey glass composition including erbium and holmium |
| BR0211576A (en) | 2001-08-02 | 2004-06-29 | 3M Innovative Properties Co | Method for manufacturing an article from glass |
| US7563293B2 (en) * | 2001-08-02 | 2009-07-21 | 3M Innovative Properties Company | Al2O3-rare earth oxide-ZrO2/HfO2 materials, and methods of making and using the same |
| DE10256629B3 (en) * | 2002-12-03 | 2004-02-19 | Schott Glas | Optical glass for an optical element in imaging, projection, telecommunications, optical communication engineering and/or in laser technology comprises oxides of silicon, boron, aluminum, sodium and potassium |
| DE102005020423B4 (en) * | 2005-04-29 | 2009-04-02 | Schott Ag | Lead- and arsenic-free optical lanthanum borate glass and its use |
| DE102006029073B4 (en) * | 2005-07-06 | 2009-07-16 | Schott Ag | Method for cutting a glass sheet using a laser cutting beam and alkali-free flat glass with particular suitability for this |
| DE102006052787B4 (en) * | 2005-12-23 | 2017-06-22 | Schott Ag | Optical glass |
| US8770749B2 (en) | 2010-04-15 | 2014-07-08 | Oakley, Inc. | Eyewear with chroma enhancement |
| EP2769262A4 (en) | 2011-10-20 | 2015-04-01 | Oakley Inc | Eyewear with chroma enhancement |
| EP2842917B1 (en) * | 2012-04-27 | 2017-12-27 | Nikon Corporation | Optical glass, optical element, optical system, and optical device |
| WO2013169987A1 (en) | 2012-05-10 | 2013-11-14 | Oakley, Inc. | Eyewear with laminated functional layers |
| US9575335B1 (en) | 2014-01-10 | 2017-02-21 | Oakley, Inc. | Eyewear with chroma enhancement for specific activities |
| US10871661B2 (en) | 2014-05-23 | 2020-12-22 | Oakley, Inc. | Eyewear and lenses with multiple molded lens components |
| WO2016077431A2 (en) | 2014-11-13 | 2016-05-19 | Oakley, Inc. | Variable light attenuation eyewear with color enhancement |
| US9905022B1 (en) | 2015-01-16 | 2018-02-27 | Oakley, Inc. | Electronic display for demonstrating eyewear functionality |
| US10815145B2 (en) * | 2016-03-31 | 2020-10-27 | Corning Incorporated | High index glass and devices incorporating such |
| RU2643221C1 (en) * | 2016-12-06 | 2018-01-31 | Юлия Алексеевна Щепочкина | Glass |
| US11112622B2 (en) | 2018-02-01 | 2021-09-07 | Luxottica S.R.L. | Eyewear and lenses with multiple molded lens components |
| CN108341595B (en) * | 2018-02-12 | 2020-09-29 | 东旭集团有限公司 | Composition for glass, glass with low inclusion content, preparation method and application thereof |
| US11485675B2 (en) | 2018-04-20 | 2022-11-01 | Barberini Gmbh | Contrast enhancing glass for sunglass lenses |
| EP3556735A1 (en) * | 2018-04-20 | 2019-10-23 | Barberini GmbH | Contrast enhancing glass for sunglass lenses |
| CN109626813B (en) * | 2019-01-07 | 2021-08-31 | 成都光明光电股份有限公司 | Optical glass, optical preform, optical element and optical instrument |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6158410A (en) * | 1984-08-28 | 1986-03-25 | 昭和電線電纜株式会社 | Method of laying snake of cable |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5849641A (en) * | 1981-09-21 | 1983-03-23 | Hoya Corp | Contrast filter for color crt display device |
| JPS5884142A (en) * | 1981-11-12 | 1983-05-20 | Asahi Glass Co Ltd | Panel glass for cathode-ray tube |
| JPS59152240A (en) * | 1983-02-14 | 1984-08-30 | Hoya Corp | Optical glass |
-
1984
- 1984-09-28 JP JP20181284A patent/JPS6183645A/en active Granted
-
1985
- 1985-09-27 DE DE19853534575 patent/DE3534575A1/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6158410A (en) * | 1984-08-28 | 1986-03-25 | 昭和電線電纜株式会社 | Method of laying snake of cable |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3534575A1 (en) | 1986-04-03 |
| JPS6183645A (en) | 1986-04-28 |
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