JPH0624801Y2 - Filter plate for infrared receiver - Google Patents
Filter plate for infrared receiverInfo
- Publication number
- JPH0624801Y2 JPH0624801Y2 JP1985049704U JP4970485U JPH0624801Y2 JP H0624801 Y2 JPH0624801 Y2 JP H0624801Y2 JP 1985049704 U JP1985049704 U JP 1985049704U JP 4970485 U JP4970485 U JP 4970485U JP H0624801 Y2 JPH0624801 Y2 JP H0624801Y2
- Authority
- JP
- Japan
- Prior art keywords
- filter plate
- infrared
- display
- light receiving
- black paint
- 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
Landscapes
- Details Of Television Systems (AREA)
- Selective Calling Equipment (AREA)
- Optical Communication System (AREA)
Description
【考案の詳細な説明】 （イ）産業上の利用分野 本考案は赤外線リモコン装置を備えるテレビジョン受像
機等に使用される赤外線受光部用のフィルタ板に関す
る。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a filter plate for an infrared receiving section used in a television receiver or the like having an infrared remote control device.
（ロ）従来の技術 最近のテレビジョン受像機等に於ける赤外線リモコン信
号の受光部には、一般に周囲からの可視光の影響を除去
するため、赤外線のみ通過させ可視光線を遮断するフィ
ルタ板が取付けられている。また、上記受像機等では、
前面部のスペースの有効利用等の点から、前記受光部に
隣接して電源のオン・オフインジケータやタイマーオン
・オフインジケータ等の表示部が設けられている。そし
て、この表示部としては、受像機の前面パネル等の凹所
に表示用の光源を設け、この光源の前方にインジケータ
用の文字やマーク等が所謂抜きパターンとして形成され
た濃色の合成樹脂製表示板を配置した構造が採用されて
いる。(B) Conventional technology In a light receiving part of an infrared remote control signal in a recent television receiver or the like, a filter plate that allows only infrared rays to pass and blocks visible rays is generally used to remove the influence of visible light from the surroundings. Installed. Also, in the above-mentioned receiver, etc.,
From the viewpoint of effective utilization of the space on the front surface, a display unit such as a power on / off indicator and a timer on / off indicator is provided adjacent to the light receiving unit. As the display unit, a light source for display is provided in a recess such as the front panel of the receiver, and a dark-colored synthetic resin in which letters or marks for indicators are formed in a so-called blank pattern in front of the light source. A structure with display panels is used.
しかしながら、上記の如く赤外線受光部用のフィルタ板
とインジケータ用の表示板を別個に設けて前面パネルに
それぞれ取付けていたのでは、作業効率が悪く且つコス
ト高になる。このため、上記フィルタ板と表示板とを一
枚の合成樹脂板で構成したものが、特開昭59-101582号
公報に記載されている。即ち、この公報のものは、第３
図に示すように、透明な合成樹脂(1)の裏面側に於い
て、赤外線検出用の受光素子に対向せしめられるフィル
タ部(2)及び表示用抜きパターン部(3)以外の部分に不透
明膜(4)が印刷され、且つ、上記フィルタ部(2)には上記
不透明膜(4)とは別の塗料からなる赤外線透過膜(5)が印
刷されて、それぞれ形成されている。However, if the filter plate for the infrared light receiving portion and the display plate for the indicator are separately provided and attached to the front panel as described above, the work efficiency becomes poor and the cost becomes high. For this reason, the one in which the filter plate and the display plate are made of one synthetic resin plate is described in Japanese Patent Laid-Open No. 59-101582. That is, the one disclosed in this publication is the third
As shown in the figure, on the back side of the transparent synthetic resin (1), an opaque film is formed on the part other than the filter part (2) and the display blank pattern part (3) which are opposed to the light receiving element for infrared detection. (4) is printed, and the infrared ray transmissive film (5) made of a paint different from that of the opaque film (4) is printed on the filter part (2), respectively.
ところで、上記従来例のものでは、不透明膜(4)を印刷
形成する工程と、赤外線透過膜(5)を印刷形成する工程
の二つの作業工程を必要とするため、この場合も製造コ
ストが増大すると言う問題があった。By the way, in the above-mentioned conventional example, since the two working steps of the step of printing the opaque film (4) and the step of printing the infrared transmissive film (5) are required, the manufacturing cost also increases in this case. There was a problem saying that.
（ハ）考案が解決しようとする問題点 本考案は前記従来例の欠点を解消すべくなされたもので
あり、作業工数が少なく且つ作業制に優れ、しかも、低
コストで実現できる赤外線受光部用フィルタ板を提供す
ることを目的とする。(C) Problems to be solved by the present invention The present invention has been made to solve the drawbacks of the above-mentioned conventional example, and has a small number of man-hours and an excellent work system. It is intended to provide a filter plate.
（ニ）問題点を解決する為の手段 本考案のフィルタ板では、赤外線検出用の受光素子の近
傍に並設された表示用光源の光が入射する表示用抜きパ
ターン部を除いて、透明樹脂製のフィルタ基板の裏面に
ジスアゾのピリミジン系またはニグロシン系の黒色塗料
を印刷形成した。(D) Means for Solving the Problems In the filter plate of the present invention, the transparent resin is used except for the display blank pattern portion to which the light of the display light source arranged in the vicinity of the light receiving element for infrared detection enters. A disazo pyrimidine-based or nigrosine-based black paint was formed by printing on the back surface of the filter substrate made of.
（ホ）作用 上記フィルタ板に依れば、上記黒色塗料は何れも赤外線
に対する透過率が非常に大きく、且つ、可視光線は略10
0％通過させないシャープな反転特性を有しているの
で、上記黒色塗料層が受光部の赤外線透過膜としての機
能及びインジケータ部の不透明膜としての機能を充分に
達成し得る。(E) Action According to the filter plate, all of the black paints have a very high transmittance for infrared rays, and the visible light is about 10%.
Since it has a sharp reversal property that does not allow 0% to pass, the black paint layer can sufficiently achieve the function as an infrared transmitting film of the light receiving part and the function of an opaque film of the indicator part.
（ヘ）実施例 以下、本考案の実施例を第１図及び第２図を参照して説
明する。(F) Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
本考案では、第１図に示す如くフィルタ基板として透明
な合成樹脂板(1)を使用するが、この樹脂板には耐溶剤
性の大きいＰＶＣ（ポリ塩化ビニール）樹脂またはＰＭ
ＭＡ（ポリメチルメタアクリレート）樹脂が好適である
が、後述する溶剤（シンナー）の濃度が低い場合にはポ
リカーボネート樹脂等も使用可能である。In the present invention, a transparent synthetic resin plate (1) is used as a filter substrate as shown in FIG. 1, and this resin plate is made of PVC (polyvinyl chloride) resin or PM having high solvent resistance.
MA (polymethylmethacrylate) resin is suitable, but polycarbonate resin or the like can also be used when the concentration of the solvent (thinner) described later is low.
(6)は上記合成樹脂板(1)の裏面側（即ち、赤外線検出用
受光素子及び表示用光源と対峙する側）に於いてインジ
ケータ表示用の抜きパターン部(3)を除いて略全面にシ
ルク印刷により形成された黒色塗料であり、本考案では
この黒色塗料としてジスアゾのピリミジン系またはニグ
ロシン系化合物を塗料とするものを使用したことを特徴
としている。(6) is substantially the entire surface of the back surface of the synthetic resin plate (1) (that is, the side facing the light receiving element for infrared detection and the light source for display) except for the pattern part (3) for indicator display. This is a black paint formed by silk printing, and the present invention is characterized in that a disazo pyrimidine-based or nigrosine-based compound is used as the black paint.
ここで、上記ピリミジン系化合物及びニグロシン系化合
物の構造式を参考までに示すと、それぞれ下記の(イ)(ロ) の通りであり、具体的には前者に属する染料としてオリ
エント化学工業株式会社製のオイルブラックＨＢＢ（商
品名）を、また、後者の染料として同社製のボントロン
Ｎ−01（同）を使用できる。Here, when the structural formulas of the pyrimidine-based compound and the nigrosine-based compound are shown for reference, the following (a) and (b) are respectively shown. Specifically, Oil Black HBB (trade name) manufactured by Orient Chemical Industry Co., Ltd. can be used as a dye belonging to the former, and Bontron N-01 (same) manufactured by the same can be used as a dye belonging to the latter.
すなわち、実施例について具体的に言えば、上記染料オ
イルブラックＨＢＢを、溶剤型の透明液状樹脂（一般に
メデュームと称される）を溶媒として、重量比で約15％
（染料／染料＋溶媒）に成るよう混合したものを前記黒
色塗料(6)とし、この黒色塗料を溶剤（シンナー等）で
適当な粘度まで稀釈して前記透明樹脂板(1)の裏面上に1
0〜20μｍ程度の厚さにシルク印刷するようにした。そ
の際、上記メデュームとしてビニール系のものを採用
し、溶剤としてシンナーを使用した。That is, specifically speaking about Examples, the above dye oil black HBB was used in a solvent-type transparent liquid resin (generally referred to as "medium") as a solvent in a weight ratio of about 15%.
A mixture of (dye / dye + solvent) is used as the black paint (6), and the black paint is diluted with a solvent (thinner, etc.) to an appropriate viscosity, and then it is applied to the back surface of the transparent resin plate (1). 1
Silk printing was performed to a thickness of about 0 to 20 μm. At that time, a vinyl type was adopted as the above-mentioned medium and a thinner was used as a solvent.
次に、(7)は前記黒色塗料(6)を印刷形成したのち、表示
用抜きパターン部(3)を覆うように塗布した淡白色の塗
料層であり、これは樹脂板(1)の裏面側から上記抜きパ
ターン部(3)に入射される光を散乱させて表示効果を高
める作用をなすものである。そして、この塗料層(7)に
は、前述したメデュームに艶消し剤としてシリカ微粉抹
を混合したものを使用し、これをシルク印刷して形成し
た。なお、(8)は上記樹脂板(1)の表面側に白色塗料で印
刷された文字であり、また破線で囲まれた領域(2)は赤
外線で受光フィルタ部を表わす。Next, (7) is a light white paint layer applied by printing to form the black paint (6) and then covering the display blank pattern part (3), which is the back surface of the resin plate (1). It serves to enhance the display effect by scattering the light incident on the above-mentioned blank pattern portion (3) from the side. The paint layer (7) was formed by silk-printing a mixture of the above-mentioned medium and a fine silica powder as a matting agent. It should be noted that (8) is a character printed on the surface side of the resin plate (1) with white paint, and the area (2) surrounded by a broken line is an infrared ray to represent a light receiving filter section.
第２図の実線は前述のオイルブラックＨＢＢと主体とし
た黒色塗料(6)を10〜20μｍ程度の厚さに形成した第１
図のフィルタ板の透光特性を示しており、第３図の従来
例等に使用されているジオキサジン系バイオレットを主
体とする塗料を使用した場合の特性（一点鎖線）との比
較から明らかなように、上記実施例のフィルタ板は、赤
外用発光ダイオードからの900nm程度の波長の赤外線に
対する透過率が極めて高く、しかも、波長400〜750nm程
度の可視光線領域を略完全に遮断することが判る。The solid line in FIG. 2 is the first case in which the above-mentioned oil black HBB and the black paint (6) as a main component are formed to a thickness of about 10 to 20 μm.
The light transmission characteristics of the filter plate shown in the figure are shown, and as is clear from comparison with the characteristics (dashed line) of the case where the paint mainly containing dioxazine violet used in the conventional example of FIG. 3 is used. In addition, it can be seen that the filter plate of the above-mentioned embodiment has an extremely high transmittance for infrared rays having a wavelength of about 900 nm from the infrared light emitting diode, and blocks almost completely the visible light region having a wavelength of about 400 to 750 nm.
なお、上述の実施例ではピリミジン系またはニグロシン
系の黒色染料と混合するメデュームとして溶剤型のビニ
ール系のものを使用したが、上記メデュームとしては熱
硬化性のエポキシ系又はメラミン系のもの、或いは、紫
外線硬化性のものも使用できる。ただし、その場合は黒
色塗料の印刷後に、加熱工程や紫外線照射工程が必要に
なる。In the above example, a solvent type vinyl type was used as a medium mixed with a pyrimidine type or nigrosine type black dye, but as the medium, a thermosetting epoxy type or melamine type, or UV curable ones can also be used. However, in that case, a heating step and an ultraviolet irradiation step are required after printing the black paint.
（ト）考案の効果 本考案のフィルタ板に依れば、フィルタ基板上に形成し
た単一の黒色塗料が赤外線に対して極めて高い透過率を
呈すると共に、可視光線に対してはこれを略完全に遮断
できるので、赤外線受光用及びインジケータ用として兼
用でき、しかも、この兼用型のフィルタ板は上記黒色塗
料の１回の印刷しか必要としないので、作業工数が少な
く低コストで実現できる。(G) Effect of the Invention According to the filter plate of the present invention, a single black paint formed on the filter substrate has an extremely high transmittance for infrared rays, and it is almost perfect for visible light. Since it can be cut off, it can be used both as an infrared ray receiver and as an indicator, and since this dual-purpose filter plate only needs to print the black paint once, it can be realized at a low cost with a small number of work steps.
第１図は本考案フィルタ板の一実施例を示す平面図、第
２図はそのＡ−Ａ′線断面図、第３図は従来のフィルタ
板を示す第２図と同様の断面図、第４図はフィルタ板の
透光特性を示す特性図である。 (1)……透明樹脂板、(3)……表示用抜きパターン部、
(6)……黒色塗料層。1 is a plan view showing an embodiment of the filter plate of the present invention, FIG. 2 is a sectional view taken along the line AA ', FIG. 3 is a sectional view similar to FIG. 2 showing a conventional filter plate, and FIG. FIG. 4 is a characteristic diagram showing the light transmission characteristics of the filter plate. (1) …… Transparent resin plate, (3) …… Display pattern part,
(6) …… Black paint layer.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０４Ｑ 9/00 ３７１ Ａ 7170−5Ｋ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI technical display location H04Q 9/00 371 A 7170-5K
Claims (2)
に並設された表示用光源の前方に共通に配置されるフィ
ルタ板であって、該フィルタ板のベースをなす透明樹脂
板の裏面側に於いて前記光源の光が入射する表示用抜き
パターン部を除いてジスアゾのピリミジン系またはニグ
ロシン系の黒色塗料を印刷形成してなる赤外線受光部用
フィルタ板。1. A filter plate commonly arranged in front of a light receiving element for infrared detection and a display light source arranged in the vicinity of the element, the back surface of a transparent resin plate forming a base of the filter plate. A filter plate for an infrared light receiving part, which is formed by printing disazo pyrimidine-based or nigrosine-based black paint on the side except for the display blank pattern part on which the light from the light source is incident.
グロシン系の黒色染料を透明樹脂溶剤と混合したもので
あることを特徴とする実用新案登録請求の範囲第１項記
載の赤外線受光部用フィルタ板。2. The filter plate for infrared light receiving part according to claim 1, wherein the black paint is a mixture of the pyrimidine-based or nigrosine-based black dye with a transparent resin solvent. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985049704U JPH0624801Y2 (en) | 1985-04-03 | 1985-04-03 | Filter plate for infrared receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985049704U JPH0624801Y2 (en) | 1985-04-03 | 1985-04-03 | Filter plate for infrared receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61165502U JPS61165502U (en) | 1986-10-14 |
| JPH0624801Y2 true JPH0624801Y2 (en) | 1994-06-29 |
Family
ID=30567145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985049704U Expired - Lifetime JPH0624801Y2 (en) | 1985-04-03 | 1985-04-03 | Filter plate for infrared receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624801Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3276215B2 (en) * | 1993-07-30 | 2002-04-22 | 日本写真印刷株式会社 | Front panel and transfer material for front panel |
| JP2001266687A (en) * | 2000-03-22 | 2001-09-28 | San Kogyo Kk | Apparatus faceplate and manufacturing method therefor |
| JP2008229095A (en) * | 2007-03-22 | 2008-10-02 | Topcon Corp | Ophthalmologic device |
| JP2010039804A (en) * | 2008-08-06 | 2010-02-18 | Nitto Denko Corp | Optical touch panel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941562B2 (en) * | 1977-06-23 | 1984-10-08 | 松下電器産業株式会社 | infrared filter |
| JPS5446055A (en) * | 1977-09-19 | 1979-04-11 | Teijin Ltd | Film with selective permeability of rays |
| JPS54159453A (en) * | 1978-06-06 | 1979-12-17 | Nippon Steel Chem Co Ltd | Composition for light filter of synthetic resin |
-
1985
- 1985-04-03 JP JP1985049704U patent/JPH0624801Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61165502U (en) | 1986-10-14 |
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