JPH0843556A - Light-storing sandglass - Google Patents
Light-storing sandglassInfo
- Publication number
- JPH0843556A JPH0843556A JP17575694A JP17575694A JPH0843556A JP H0843556 A JPH0843556 A JP H0843556A JP 17575694 A JP17575694 A JP 17575694A JP 17575694 A JP17575694 A JP 17575694A JP H0843556 A JPH0843556 A JP H0843556A
- Authority
- JP
- Japan
- Prior art keywords
- sand
- sandglass
- light
- phosphorescent
- hourglass
- 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
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、暗い場所にて使用可能
な蓄光型砂時計に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a luminous hourglass that can be used in a dark place.
【０００２】[0002]
【従来の技術】一般的に、砂時計の透明ガラスあるいは
プラスチック容器内に封入される砂粒状物としては、黒
大理石等が用いられていた。ところが、近年、夜間に使
用可能等、砂時計自体にさらに実用性、装飾性、遊戯性
等の付加価値を持たせるため、硫化亜鉛等を主用成分と
する蓄光材を用いた封入用砂粒状物が適用されるように
なっている。蓄光材は、所定波長の光、たとえば紫外線
の多い蛍光灯や太陽光に反応してエネルギーを蓄えて、
所定時間発光するものである。2. Description of the Related Art Generally, black marble or the like has been used as the sand granules enclosed in the transparent glass of an hourglass or a plastic container. However, in recent years, in order to further add practicality, decorativeness, playability, and other added value to the hourglass itself, which can be used at night, sand granules for encapsulation using a phosphorescent material containing zinc sulfide as a main component. Is being applied. A phosphorescent material stores energy in response to light of a predetermined wavelength, for example, fluorescent light or sunlight with a lot of ultraviolet rays,
It emits light for a predetermined time.
【０００３】このような蓄光材を用いた砂粒状物として
は、一般に、天然砂やプラスチック等の砂粒状物に蓄光
材を塗布したもの、あるいは、砂粒状プラスチックに蓄
光顔料を混入させたものが用いられている。As the sand granules using such a phosphorescent material, there are generally sand granules such as natural sand and plastics coated with a phosphorescent material, or sand granulated plastics mixed with a phosphorescent pigment. It is used.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述し
た蓄光材を用いた砂粒状物を封入してなる砂時計では、
蓄光材を塗布した場合、砂粒状物同士の摩擦等により塗
布された蓄光材が剥がれ落ち、砂時計の蛍光機能が時間
とともに低下する。また、顔料を混入させたものは、硫
化亜鉛の蓄光色は黄緑色をしているが、着色することに
より輝度が低下し、残光時間も短くなる。暗い場所にて
使用する場合、２０分程度でその視認が不可能となる。However, in the hourglass in which the sand grains using the above-mentioned phosphorescent material are enclosed,
When the phosphorescent material is applied, the applied phosphorescent material is peeled off due to friction between sand particles and the fluorescent function of the hourglass is deteriorated with time. Further, in the case where the pigment is mixed, the luminous color of zinc sulfide is yellow green, but the coloring lowers the luminance and shortens the afterglow time. When it is used in a dark place, the visual recognition becomes impossible in about 20 minutes.
【０００５】そこで、従来の目覚まし時計のように、残
光時間を短くさせないために、プロメチウムなどの放射
性物質を組み合わせ自然発光させることにより、たとえ
ば人間が視認できる０．３ｍcd以上の輝度を維持させる
ことも考えられる。Therefore, in order to prevent the afterglow time from being shortened as in a conventional alarm clock, a radioactive substance such as promethium is combined to spontaneously emit light, thereby maintaining a brightness of 0.3 mcd or more which can be visually recognized by humans. Can also be considered.
【０００６】ところが、従来の発光体は、放射性物質を
添加して輝度を維持させていることから、「放射性障害
防止法」の規制により放射量が１００マイクロキューリ
以下に制限されている。したがって、使用量が多くなる
砂時計には用いることができない。また、上述した「放
射性障害防止法」の規制により莫大な管理費用も必要で
ある。[0006] However, since the conventional luminous body is added with a radioactive substance to maintain the brightness, the radiation amount is limited to 100 microcurie or less by the regulation of "Radioactive Disorder Prevention Law". Therefore, it cannot be used for an hourglass, which is used in a large amount. In addition, enormous management costs are required due to the regulations of the "Radioactive Disorder Prevention Law" mentioned above.
【０００７】本発明は、かかる事情に鑑みてなされたも
のであり、その目的は、機能の低下を招くことなく、ま
た、管理が容易で、残光時間が長く、しかも見やすく実
用性、装飾性、遊戯性、安全性に優れた蓄光型砂時計を
提供することにある。The present invention has been made in view of the above circumstances, and its purpose is to prevent deterioration of function, to be easily managed, to have a long afterglow time, to be easy to see, and to be practical and decorative. , Providing a phosphorescent hourglass excellent in playability and safety.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、本発明の蓄光型砂時計は、光学的に透明な容器内
に、金属酸化物系焼結材に希土類元素を添加した蓄光体
からなる砂粒状物を封入して構成されている。To achieve the above object, the phosphorescent hourglass of the present invention comprises a phosphorescent material obtained by adding a rare earth element to a metal oxide sintered material in an optically transparent container. It is configured by enclosing sand particles.
【０００９】[0009]
【作用】本発明の砂時計によれば、従来の硫化亜鉛によ
る蓄光材を用いた場合に比べて輝度が高く、残光時間は
硫化亜鉛による蓄光材に比べて１０倍以上も長く５〜８
時間程度は維持される。したがって、照明が消された夜
間等にも時計として、あるいは装飾体として十分に適用
できる。According to the hourglass of the present invention, the brightness is higher than that when the conventional phosphorescent material made of zinc sulfide is used, and the afterglow time is 5 to 8 times longer than that of the phosphorescent material made of zinc sulfide.
Time is maintained. Therefore, it can be sufficiently applied as a clock or a decoration even at night when the illumination is turned off.
【００１０】[0010]
【実施例】図１は、本発明に係る蓄光型砂時計の一実施
例を示す斜視図である。図１において、１はたとえば透
明なガラスやプラスチックからなり、その中央部にくび
れ部分が形成された容器、２は支持枠、３は容器１内に
封入された砂粒状物をそれぞれ示している。1 is a perspective view showing an embodiment of a luminous hourglass according to the present invention. In FIG. 1, reference numeral 1 is a container made of, for example, transparent glass or plastic, and a central portion thereof has a constricted portion. Reference numeral 2 is a support frame. Reference numeral 3 is a sand particle enclosed in the container 1.
【００１１】砂粒状物３は、成型可能なガラスビーズ
材、プラスチック材、シリカゲル材等に、金属酸化物系
焼結材に希土類元素を添加した蓄光材を約１０％程度混
合させ、ペレット化した混合材料を砂時計用に粉砕微粒
化し、成型砂としたものである。この成型砂粒は、略球
状をなし、直径は１００〜３５０μｍ程度である。The sand granules 3 were pelletized by mixing about 10% of a phosphorescent material obtained by adding a rare earth element to a metal oxide sintered material to a moldable glass bead material, a plastic material, a silica gel material or the like. The mixed material is crushed into fine particles for an hourglass to form molding sand. The molded sand particles are substantially spherical and have a diameter of about 100 to 350 μm.
【００１２】砂粒状物３に添加する蓄光材は、たとえば
金属とアルカリ土類金属元素との焼結酸化物に、数ｐｐ
ｍ程度の微量の希土類元素を添加して構成されており、
金属とアルカリ土類金属元素との焼結酸化物が発光体と
して機能し、希土類元素が励起状態に遷移するための触
媒として機能する。ここで、焼結酸化物の金属としては
アルミニウム（Ａｌ）、アルカリ土類金属としてはスト
ロンチウム（Ｓｒ）が用いられている。この場合の焼結
酸化物を化学式で表すと、次のようになる。 Ｓｒx ・Ａｌy ・ＯZ The phosphorescent material added to the sand granules 3 is, for example, a sintered oxide of a metal and an alkaline earth metal element, and a few pp.
It is composed by adding a trace amount of rare earth element of about m.
A sintered oxide of a metal and an alkaline earth metal element functions as a light emitting body, and a rare earth element functions as a catalyst for transition to an excited state. Here, aluminum (Al) is used as the metal of the sintered oxide, and strontium (Sr) is used as the alkaline earth metal. The chemical formula of the sintered oxide in this case is as follows. Sr x · Al y · O Z
【００１３】このような蓄光体は、少し黄緑色であって
従来の硫化亜鉛より透明度が高く、かつ、図２に示すよ
うに、従来の一般的な蓄光材である硫化亜鉛（ＺｎＳ）
より残光性が長く、輝度が高い。また、蓄光材は、特に
紫外線の多い蛍光灯や太陽光に反応してエネルギーを蓄
える。良好な波長としては３７０ｎｍ程度である。Such a phosphor is slightly yellowish green and has higher transparency than conventional zinc sulfide, and as shown in FIG. 2, zinc sulfide (ZnS) which is a conventional general phosphorescent material.
Longer afterglow and higher brightness. In addition, the phosphorescent material stores energy in response to fluorescent light or sunlight, which has a large amount of ultraviolet rays. A good wavelength is about 370 nm.
【００１４】また、図３は、砂粒状物３に添加される蓄
光材を用いた発光装置と、従来の硫化亜鉛による蓄光型
発光体およびプロメチウムを添加した自発光型発光体と
の残光時間を測定した結果を示すグラフである。図３に
おいて、横軸は照射時間および残光時間を、縦軸は残光
輝度をそれぞれ表している。また、図中、Ａ−１で示す
曲線は白地印刷色の上に配置した本発明に係る蓄光材を
用いた発光体の特性を、Ａ−２で示す曲線は白地印刷色
の上に黄緑色の顔料を含ませて配置した本発明に係る蓄
光材を用いた発光体の特性を、Ａ−３で示す曲線はカラ
ー印刷色の上に配置した本発明に係る蓄光材を用いた発
光体の特性を、Ｂで示す曲線は従来の硫化亜鉛による蓄
光型発光体を、Ｃで示す曲線は自発光型発光体の特性を
それぞれ示している。図３からわかるように、砂粒状物
３に添加される蓄光材を用いた発光装置は、従来の発光
体に比べ輝度が高く、残光時間も硫化亜鉛による蓄光型
発光体に比べて１０倍以上も長く５〜８時間程度であ
る。このように、長時間の残光特性を持つことから、本
砂時計は、照明が消された夜間等にも時計として、ある
いは装飾体として十分に適用できる。Further, FIG. 3 shows the afterglow time of the light emitting device using the phosphorescent material added to the sand granules 3 and the conventional phosphorescent light emitting body using zinc sulfide and the self-luminous light emitting body containing promethium. It is a graph which shows the result of having measured. In FIG. 3, the horizontal axis represents the irradiation time and the afterglow time, and the vertical axis represents the afterglow brightness. Further, in the figure, the curve indicated by A-1 shows the characteristics of the luminescent material using the phosphorescent material according to the present invention arranged on the white background printing color, and the curve indicated by A-2 shows the yellow green color on the white background printing color. The characteristic of the luminous body using the phosphorescent material according to the present invention arranged by including the pigment of the present invention is shown by a curve A-3 of the luminous body using the phosphorescent material according to the present invention arranged on a color printing color. The characteristic curve B shows the characteristic of a conventional phosphorescent luminous body made of zinc sulfide, and the characteristic curve C shows the characteristic of a self-luminous luminous body. As can be seen from FIG. 3, the light emitting device using the phosphorescent material added to the sand granules 3 has higher brightness than the conventional light emitting body, and the afterglow time is 10 times as long as that of the phosphorescent type light emitting body using zinc sulfide. The above is about 5 to 8 hours long. As described above, since the hourglass has the afterglow characteristic for a long time, the hourglass can be sufficiently applied as a clock or a decorative body even at night when the illumination is turned off.
【００１５】以上説明したように、本実施例によれば、
容器１内に封入する砂粒状物３を、成型可能なガラスビ
ーズ材、プラスチック材、シリカゲル材等に、金属酸化
物系焼結材に希土類元素を添加した蓄光材を約１０％程
度混合させ、ペレット化した混合材料を砂時計用に粉砕
微粒化した成型砂としたので、蓄光材が剥がれ落ちる等
の不都合もなく、機能の低下を招くこともなく、残光時
間が長く、しかも見やすく実用性、装飾性、遊戯性、安
全性に優れた蓄光型砂時計を実現できる。また、放射性
物質を用いず安全なことから、大きな砂時計にも適用で
き、装飾など用途の拡大を図れ、また、部材管理費の低
減を図ることができる。さらに、蓄光材には着色剤を混
入させないため、残光時間や輝度を高く維持できる。As described above, according to this embodiment,
The sand granules 3 to be enclosed in the container 1 are mixed with a moldable glass bead material, plastic material, silica gel material, or the like, and a phosphorescent material obtained by adding a rare earth element to a metal oxide-based sintered material to about 10%, Since the pelletized mixed material was molded sand that was crushed into fine particles for an hourglass, there was no inconvenience such as the phosphorescent material peeling off, no deterioration in function, a long afterglow time, and easy-to-read practicality, It is possible to realize a phosphorescent hourglass with excellent decorativeness, playability, and safety. In addition, since it is safe without using radioactive materials, it can be applied to large hourglasses, its applications such as decoration can be expanded, and member management costs can be reduced. Furthermore, since no colorant is mixed in the phosphorescent material, the afterglow time and brightness can be maintained high.
【００１６】なお、本実施例では、砂粒状物３として、
成型可能なガラスビーズ材等に金属酸化物系焼結材に希
土類元素を添加した蓄光材を約１０％程度混合させ、ペ
レット化した混合材料を砂時計用に粉砕微粒化した成型
砂を用いたが、金属酸化物系焼結材に希土類元素を添加
した蓄光材を砂粒化したものを直接用いることができる
ことはいうまでもない。In this embodiment, the sand grains 3 are
About 10% of a phosphorescent material containing a rare earth element added to a metal oxide-based sintered material was mixed with a moldable glass bead material, and the pelletized mixed material was crushed and atomized for sandglass. Needless to say, a phosphorescent material obtained by adding a rare earth element to a metal oxide-based sintered material, which is made into sand grains, can be directly used.
【００１７】[0017]
【発明の効果】以上説明したように、本発明によれば、
蓄光材が剥がれ落ちる等の不都合もなく、機能の低下を
招くこともなく、残光時間が長く、しかも見やすく実用
性、装飾性、遊戯性、安全性に優れた蓄光型砂時計を実
現できる。また、放射性物質を用いていないことから、
大きな砂時計にも適用できる。さらに、蓄光材には着色
剤を混入させないため、残光時間や輝度を高く維持でき
る利点がある。As described above, according to the present invention,
It is possible to realize a phosphorescent hourglass that is free from problems such as peeling of the phosphorescent material, does not cause deterioration in function, has a long afterglow time, is easy to see, and is excellent in practicality, decoration, playability, and safety. Also, because no radioactive material is used,
It can also be applied to large hourglasses. Further, since no colorant is mixed in the phosphorescent material, there is an advantage that the afterglow time and the brightness can be maintained high.
【図１】本発明に係る蓄光型砂時計の一実施例を示す斜
視図である。FIG. 1 is a perspective view showing an embodiment of a luminous hourglass according to the present invention.
【図２】本発明に係る蓄光型発光装置と硫化亜鉛を用い
た従来の蓄光型発光体との残光時間を比較するための図
である。FIG. 2 is a diagram for comparing the afterglow time of a phosphorescent light emitting device according to the present invention and a conventional phosphorescent light emitting body using zinc sulfide.
【図３】本発明に係る蓄光材を用いた発光装置と、従来
の硫化亜鉛による蓄光型発光体およびプロメチウムを添
加した自発光型発光体との残光時間を測定した結果を示
すグラフである。FIG. 3 is a graph showing the results of measuring the afterglow time of a light emitting device using the phosphorescent material according to the present invention and a conventional phosphorescent light emitting body using zinc sulfide and a self-luminous light emitting body containing promethium. .
１…容器 ２…支持枠 ３…砂粒状物 1 ... Container 2 ... Support Frame 3 ... Sand Granules
Claims (1)
焼結材に希土類元素を添加した蓄光体からなる砂粒状物
を封入してなる蓄光型砂時計。1. A light-accumulating hourglass in which an optically transparent container is filled with a sand-granular material composed of a phosphorescent material obtained by adding a rare earth element to a metal oxide-based sintered material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17575694A JPH0843556A (en) | 1994-07-27 | 1994-07-27 | Light-storing sandglass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17575694A JPH0843556A (en) | 1994-07-27 | 1994-07-27 | Light-storing sandglass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0843556A true JPH0843556A (en) | 1996-02-16 |
Family
ID=16001708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17575694A Pending JPH0843556A (en) | 1994-07-27 | 1994-07-27 | Light-storing sandglass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0843556A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004137329A (en) * | 2002-10-16 | 2004-05-13 | Sony Corp | Stress-induced light-emitting particle, stress-induced light-emitting artificial sand, stress-induced light-emitting particle aggregate, stress-induced light-emitting flexible structure and method for producing stress-induced light-emitting particle |
| JP2006055636A (en) * | 2004-07-22 | 2006-03-02 | Masahiko Kagami | Play tool for drawing stipple pattern |
| CN105487371A (en) * | 2016-01-12 | 2016-04-13 | 中山市德斯邦电子科技有限公司 | Hourglass |
| US20190192369A1 (en) * | 2014-03-28 | 2019-06-27 | Izak Du Bruyn | Gravestone marker with protected viewing chamber |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56150378A (en) * | 1980-04-22 | 1981-11-20 | Yamani Yakuhin Kk | New coloring substitute for sand to be used for toy and the like |
| JPS596792B2 (en) * | 1973-04-12 | 1984-02-14 | シユウエ− ビツシエ ヒユツテンウエルケ ゲゼルシヤフト ミト ベシユレンクテル ハフツング | Silos for especially difficult-to-flow chemicals and minerals |
-
1994
- 1994-07-27 JP JP17575694A patent/JPH0843556A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596792B2 (en) * | 1973-04-12 | 1984-02-14 | シユウエ− ビツシエ ヒユツテンウエルケ ゲゼルシヤフト ミト ベシユレンクテル ハフツング | Silos for especially difficult-to-flow chemicals and minerals |
| JPS56150378A (en) * | 1980-04-22 | 1981-11-20 | Yamani Yakuhin Kk | New coloring substitute for sand to be used for toy and the like |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004137329A (en) * | 2002-10-16 | 2004-05-13 | Sony Corp | Stress-induced light-emitting particle, stress-induced light-emitting artificial sand, stress-induced light-emitting particle aggregate, stress-induced light-emitting flexible structure and method for producing stress-induced light-emitting particle |
| JP2006055636A (en) * | 2004-07-22 | 2006-03-02 | Masahiko Kagami | Play tool for drawing stipple pattern |
| US20190192369A1 (en) * | 2014-03-28 | 2019-06-27 | Izak Du Bruyn | Gravestone marker with protected viewing chamber |
| US10729609B2 (en) * | 2014-03-28 | 2020-08-04 | Izak Du Bruyn | Gravestone marker with protected viewing chamber |
| CN105487371A (en) * | 2016-01-12 | 2016-04-13 | 中山市德斯邦电子科技有限公司 | Hourglass |
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