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JP4089243B2 - Desk lamp - Google Patents
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JP4089243B2 - Desk lamp - Google Patents

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Publication number
JP4089243B2
JP4089243B2 JP2002053754A JP2002053754A JP4089243B2 JP 4089243 B2 JP4089243 B2 JP 4089243B2 JP 2002053754 A JP2002053754 A JP 2002053754A JP 2002053754 A JP2002053754 A JP 2002053754A JP 4089243 B2 JP4089243 B2 JP 4089243B2
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JP
Japan
Prior art keywords
shade
lamp
light
reflected
coating
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 - Fee Related
Application number
JP2002053754A
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Japanese (ja)
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JP2003257226A (en
Inventor
雅輝 伊藤
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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
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Priority to JP2002053754A priority Critical patent/JP4089243B2/en
Publication of JP2003257226A publication Critical patent/JP2003257226A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00Lighting devices intended to be free-standing
    • F21S6/002Table lamps, e.g. for ambient lighting
    • F21S6/003Table lamps, e.g. for ambient lighting for task lighting, e.g. for reading or desk work, e.g. angle poise lamps

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、ランプ光を反射させるためのセードを有する電気スタンドに関するものである。
【0002】
【従来の技術】
従来は、ランプ光が、着色されたセードの反射面で反射することにより、反射光そのものにセードの塗装色もしくはセードの生地の色が反映されることを防止するために、図7および図8に示すようにしていた。すなわち、セード50の内面すなわちランプ52の取付面側には白色樹脂、もしくは、白色に塗装を施した反射板51を配置し、反射板51に反射するランプ光を白色に維持して、被照射面である紙面や机上面にセード50の色が映らない様に配慮していた。
【0003】
また、部品点数を削減するため、図9に示すようにセード53を白色系の材料で形成し、ランプ光の反射面のみマスキングを施して白色面を残すようにセード53に塗装(斜線)54を施すことで、被照射面にセードの色が映らない様に配慮していた。
【0004】
さらには、より一層コストを削減するためにセードに反射板を設けず、さらにはマスキングの塗装も施さず、セードを形成する材料の色がそのまま被照射面に映ってしまうものもあった。
【0005】
【発明が解決しようとする課題】
本発明の目的は、ランプ光が着色されたセードの反射面で反射することにより、反射光そのものにセードの色もしくはセードの生地の色が反映される現象を防止するための手段として、反射板の配置やマスキング塗装によることなく、被照射面へセードの色が映り込む現象を低減させることのできる、電気スタンドを提供することである。
【0006】
【課題を解決するための手段】
請求項1記載の電気スタンドは、スタンド台と、反射光が色光を呈する着色を施したセードを有して前記スタンド台に支持された灯具とを備え、前記セードは、前記反射光を形成する反射面に拡散性塗装または拡散性処理を施すことにより多数の凹凸を形成し、その上にクリア塗装を施したものである。
【0007】
請求項1記載の電気スタンドによれば、セードの内面であるランプ取付面にクリア塗装を施すことにより、セードに入射するランプ光の一部はクリア塗装面で透過することなく反射し、残部はセードの表面に入射しそこで反射するが、クリア塗装の表面でさらに一部が臨界角反射してランプ側に透過せずその残部がランプ側に透過する。さらにセード自体の反射光が拡散反射することにより、クリア塗装表面で臨界角反射する光が増大するので、より一層セードの色の反映を防止することができる。その結果、ランプ光のセード側からの反射光はセードの色の反映した光が大幅に低減できる。
【0010】
請求項記載の電気スタンドは、スタンド台と、反射光が色光を呈する着色を施したセードを有して前記スタンド台に支持された灯具とを備え、前記セードは、前記反射光を形成する反射面にメタリック調塗装を施すことにより多数の凹凸を形成し、その上にクリア塗装を施したものである。
【0011】
請求項記載の電気スタンドによれば、請求項と同様な効果がある。
【0012】
【発明の実施の形態】
以下、本発明の実施の形態について図面に基づき説明する。
【0013】
(実施の形態1 )
この発明の第1の実施の形態の電気スタンドを図1から図3により説明する。1はスタンド台、2は支柱、3は灯具である。スタンド台1に点灯回路の回路基板を内蔵し、コンセント(図示せず)および点灯スイッチ4を設け、かつ電源線を導入している。支柱2は下端部がスタンド台1に垂直回動自在な自在器5により連結され、上端部は灯具3の後端部を垂直回動および水平回動自在に構成された自在器6により連結している。
【0014】
灯具3はセード7と、セード7に保持されたランプソケット(図示せず)と、ランプソケットに装着されたランプ8例えば片口金ランプを有する。セード7は樹脂または金属等により形成され、セード全体の表面にクリア塗装9を施してある。セード7は例えばセード生地面の構成樹脂材料として超耐熱ABS (Sumitomo Chemical 製、TPI スミカ スミトモKU600R1 )などを用いる。またクリア塗装9は例えばアクリル系樹脂塗料(NIPPON PAINT(THAILAND)製、Nax Acrykic 320# 09 T/C Clear )などを用いる。
【0015】
セード内面のクリア塗装9の表面において、ランプ8からの光L1のうち臨界角を超えるものが全反射L2を起こし残りは透過するため、セード自体に光が届きにくくなる。またクリア塗装9を透過しセード7の表面に入射しそこで反射してもクリア塗装9の表面でさらに一部が臨界角反射してランプ8側に透過しない。これらにより、ランプ8の反射光にセード自体の色が反映されにくくなる効果がある。
【0016】
本発明の電気スタンドによれば、反射板等のランプ光反射用の部品を必要としないため、部品点数を削減することが可能になるので、コストおよび組立工数の低減に寄与することができる。また上述のようにランプ光反射の部品を必要としないため、セード形状の設計の自由度が増す。さらに比較的容易な技術により実現可能であり応用範囲が広く実施できる。
【0017】
なお、セード全体でなく内面すなわちランプ8に向く面のみクリア塗装しても良い。
【0018】
(実施の形態2 )
この発明の第2の実施の形態の説明を図4および図5に示す。第1の実施の形態において、セード7の反射面に、つや消し着色塗装等の拡散性塗装や、シボ加工処理などの拡散性処理10を施した上に、クリア塗装9を施したものである。図4(b)はセード7の表面にシボ加工処理を施したもので、その表面に多数の凹凸が形成される。図5はセード7の表面につや消し着色塗装等の拡散性塗装11を施したもので、その表面に多数の凹凸が形成される。
【0019】
ランプ光L1の一部はクリア塗装9の表面で全反射L2を起こすが、残部の透過したランプ光L3はセード7の着色面へ到達する。セード7の着色面(反射面)に到達した光L3は、拡散性処理面で乱反射を起こし、着色反射光L4として、クリア塗装9の面から被照射面へと照射されようとするが、その反射光L5はクリア塗装9の層と空気層の屈折率の違いから反射の臨界角を超える反射光が増大し臨界角以下の反射光がクリア塗装層より外にでることができる。その結果、着色面での反射光のうち臨界角を超える反射光は被照射面に到達できなくなるため、被照射面への色の映り込みがより低減されるものである。
【0020】
(実施の形態3 )
この発明の第3の実施の形態を図6に示す。第1の実施の形態において、セード7の反射面に、拡散性塗装であるメタリック調塗装12を施した上に、クリア塗装9を施したものである。メタリック調塗装9は金属粉を含有しているために、塗装面に多数の凹凸が形成される。
【0021】
ランプ光L1の一部はクリア塗装9の表面で全反射を起こすが、残部の透過したランプ光L3はセード7のメタリック調塗装11の面へ到達する。セード7の着色面(反射面)に到達した光L3は、メタリック調塗装9の面により乱反射を起こし、着色反射光L4として、クリア塗装面から被照射面へと照射されようとするが、その反射光はクリア塗装層と空気層の屈折率の違いから反射の臨界角を超える反射光が増大し、臨界角以下の反射光がクリア塗装9の層より外に出ることができる。その結果、着色面での反射光のうち臨界角を超えるものは被照射面に到達できなくなるため、被照射面への色の映り込みがより低減されるものである。
【0022】
上記の拡散性塗料としては例えば、アクリル系樹脂塗料(NIPPON PAINT(THAILAND))などを用いるが、金属粉ないし粒度の高い粉末状材料を含有する塗料であれば可能である。
【0023】
なお、本発明において、セード7の材質(樹脂、金属等)、樹脂成形の場合その基となる樹脂材料の色、セード7の反射面の色(セードの外観の色を含む)を限定するものではなく、ランプ光の反射面にクリア塗装9を施したものであれば良い。例えば、第2の実施の形態ではセード7の反射面に拡散性の処理(反射面へのシボ加工処理、つや消しの塗装など)を施した後、その上からクリア塗装9を施したものであれば良い。
【0024】
第3の実施の形態も、セード7の反射面にメタリック調塗装を施した後、その上からクリア塗装9を施したものであれば良い。
【0025】
【発明の効果】
請求項1記載の電気スタンドによれば、セードの内面であるランプ取付面にクリア塗装を施すことにより、セードに入射するランプ光の一部はクリア塗装面で透過することなく反射し、残部はセードの表面に入射しそこで反射するが、クリア塗装の表面でさらに一部が臨界角反射してランプ側に透過せずその残部がランプ側に透過する。さらにセード自体の反射光が拡散反射することにより、クリア塗装表面で臨界角反射する光が増大するので、より一層セードの色の反映を防止することができる。その結果、ランプ光のセード側からの反射光はセードの色の反映した光が大幅に低減できる。
【0027】
請求項記載の電気スタンドによれば、請求項と同様な効果がある。
【図面の簡単な説明】
【図1】この発明の第1の実施の形態の斜視図である。
【図2】その灯具の部分斜視図である。
【図3】その拡大断面図である。
【図4】第2の実施の形態を示し、(a)は灯具の断面図、(b)はセード表面を拡散性表面処理をした状態の部分断面図である。
【図5】セード表面に拡散性塗装により処理を施した状態の部分断面図である。
【図6】第3の実施の形態を示し、(a)は灯具の断面図、(b)はセード表面に拡散性塗装を施した状態の部分断面図である。
【図7】従来例のセードの斜視図である。
【図8】その分解斜視図である。
【図9】(a)はセードの斜視図、(b)はその断面図である。
【符号の説明】
1 スタンド台
3 灯具
7 セード
9 クリア塗装
10 拡散性処理
11 拡散性塗装
12 メタリック調塗装
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a desk lamp having a shade for reflecting lamp light.
[0002]
[Prior art]
Conventionally, in order to prevent the lamp light from being reflected by the reflecting surface of the colored shade, it is possible to prevent the painted color of the shade or the color of the fabric of the shade from being reflected in the reflected light itself. It was as shown in. That is, a white resin or a reflecting plate 51 coated with white is disposed on the inner surface of the shade 50, that is, the mounting surface side of the lamp 52, and the lamp light reflected on the reflecting plate 51 is maintained in white so as to be irradiated. Consideration was made so that the color of the shade 50 would not be reflected on the paper surface or desk surface.
[0003]
In order to reduce the number of parts, the shade 53 is formed of a white material as shown in FIG. 9, and the shade 53 is painted (shaded) 54 so as to leave a white surface by masking only the reflecting surface of the lamp light. By doing so, it was considered that the shade color would not be reflected on the irradiated surface.
[0004]
Furthermore, in order to further reduce the cost, there is a case in which a reflector is not provided on the shade, masking is not applied, and the color of the material forming the shade is reflected on the irradiated surface as it is.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a reflector as a means for preventing a phenomenon in which the shade color or the fabric color of the shade is reflected in the reflected light itself by reflecting the lamp light on the colored reflecting surface of the shade. It is to provide a desk lamp that can reduce the phenomenon in which the shade color is reflected on the irradiated surface without using the arrangement of the mask and the masking painting.
[0006]
[Means for Solving the Problems]
The desk lamp according to claim 1 includes a stand base and a lamp that is supported by the stand base and has a shade that is colored so that reflected light exhibits colored light, and the shade forms the reflected light. By applying diffusive coating or diffusive treatment to the reflective surface, a large number of irregularities are formed, and a clear coating is applied thereon .
[0007]
According to the desk lamp of claim 1, by applying a clear coating to the lamp mounting surface which is the inner surface of the shade, a part of the lamp light incident on the shade is reflected without passing through the clear coating surface, and the rest is The incident light is incident on the surface of the shade and is reflected there. However, a part of the surface of the clear paint is reflected at a critical angle and does not transmit to the lamp side, and the remainder transmits to the lamp side. Furthermore, since the reflected light of the shade itself is diffusely reflected, the light reflected at the critical angle on the surface of the clear coating increases, so that the shade color can be further prevented from being reflected. As a result, the reflected light from the shade side of the lamp light can greatly reduce the light reflecting the shade color.
[0010]
The desk lamp according to claim 2 includes a stand base and a lamp that is supported by the stand base with a shade that is colored so that the reflected light exhibits colored light, and the shade forms the reflected light. A metallic surface coating is applied to the reflecting surface to form a large number of irregularities, and a clear coating is applied thereon .
[0011]
According to the electric station according to claim 2, the same effect as claim 1.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
(Embodiment 1)
A table lamp according to a first embodiment of the present invention will be described with reference to FIGS. 1 is a stand base, 2 is a support, and 3 is a lamp. A circuit board of a lighting circuit is built in the stand base 1, an outlet (not shown) and a lighting switch 4 are provided, and a power line is introduced. The support 2 is connected at its lower end to the stand 1 by a freely movable unit 5 that can be rotated vertically, and the upper end is connected to the rear end of the lamp 3 by a freely movable unit 6 that is configured to be vertically and horizontally rotatable. ing.
[0014]
The lamp 3 includes a shade 7, a lamp socket (not shown) held by the shade 7, and a lamp 8 attached to the lamp socket, for example, a one-piece lamp. The shade 7 is made of resin or metal, and a clear coating 9 is applied to the entire surface of the shade. The seed 7 uses, for example, super heat-resistant ABS (manufactured by Sumitomo Chemical, TPI Sumika Sumitomo KU600R1) as a constituent resin material of the shade dough surface. The clear coating 9 uses, for example, an acrylic resin paint (NIPPON PAINT (THAILAND), Nax Acrykic 320 # 09 T / C Clear).
[0015]
On the surface of the clear coating 9 on the inside of the shade, since the light L1 from the lamp 8 exceeding the critical angle causes total reflection L2 and the remaining light is transmitted, it is difficult for the light to reach the shade itself. Further, even though it passes through the clear paint 9 and enters the surface of the shade 7 and is reflected there, a part of the clear paint 9 is reflected at a critical angle and does not pass to the lamp 8 side. As a result, there is an effect that the color of the shade itself is hardly reflected in the reflected light of the lamp 8.
[0016]
According to the desk lamp of the present invention, since components for reflecting light from a lamp such as a reflector are not required, the number of components can be reduced, which can contribute to reduction in cost and assembly man-hours. Further, as described above, since the lamp light reflecting component is not required, the degree of freedom in designing the shade shape is increased. Further, it can be realized by a relatively easy technique and can be applied in a wide range.
[0017]
It should be noted that only the inner surface, that is, the surface facing the lamp 8 may be clear painted, not the entire shade.
[0018]
(Embodiment 2)
A description of the second embodiment of the present invention is shown in FIGS. In the first embodiment, the reflective surface of the shade 7 is subjected to diffusive coating such as matte coloring coating or diffusive processing 10 such as embossing processing, and then a clear coating 9 is applied. In FIG. 4B, the surface of the shade 7 is subjected to a graining process, and a large number of irregularities are formed on the surface. In FIG. 5, the surface of the shade 7 is provided with a diffusive coating 11 such as a matte colored coating, and a large number of irregularities are formed on the surface.
[0019]
A part of the lamp light L1 causes total reflection L2 on the surface of the clear coating 9, but the remaining transmitted lamp light L3 reaches the colored surface of the shade 7. The light L3 that has reached the colored surface (reflecting surface) of the shade 7 causes irregular reflection on the diffusive treated surface, and is radiated from the surface of the clear coating 9 to the irradiated surface as colored reflected light L4. The reflected light L5 increases the reflected light exceeding the critical angle of reflection due to the difference in the refractive index between the clear coating 9 layer and the air layer, and the reflected light below the critical angle can go out of the clear coating layer. As a result, the reflected light exceeding the critical angle out of the reflected light on the colored surface cannot reach the irradiated surface, so that the color reflection on the irradiated surface is further reduced.
[0020]
(Embodiment 3)
A third embodiment of the present invention is shown in FIG. In the first embodiment, the reflective surface of the shade 7 is provided with a metallic paint 12 that is a diffusive paint and then a clear paint 9. Since the metallic tone coating 9 contains metal powder, a large number of irregularities are formed on the painted surface.
[0021]
A part of the lamp light L1 causes total reflection on the surface of the clear coating 9, but the remaining transmitted lamp light L3 reaches the surface of the metallic paint 11 of the shade 7. Light L3 reaching the colored surface (reflection surface) of the shade 7, cause more irregular reflection on the surface of the metallic coating 9, as the coloring reflection light L4, but about to be irradiated to the irradiated surface of the clear painted surfaces, The reflected light exceeds the critical angle of reflection due to the difference in refractive index between the clear coating layer and the air layer, and the reflected light below the critical angle can go out of the clear coating 9 layer . As a result, the reflected light on the colored surface that exceeds the critical angle cannot reach the irradiated surface, so that the color reflection on the irradiated surface is further reduced.
[0022]
As the diffusible paint, for example, an acrylic resin paint (NIPPON PAINT (THAILAND)) or the like is used. However, any paint containing a metal powder or a powdery material having a high particle size is possible.
[0023]
In the present invention, the material of the shade 7 (resin, metal, etc.), the color of the resin material used as the base in the case of resin molding, and the color of the reflecting surface of the shade 7 (including the appearance color of the shade) are limited. Instead, it is only necessary that the reflecting surface of the lamp light is provided with the clear paint 9. For example, in the second embodiment, the reflective surface of the shade 7 is subjected to diffusive processing (texture processing on the reflective surface, matte coating, etc.) and then the clear coating 9 is applied thereon. It ’s fine.
[0024]
Also in the third embodiment, any metallic coating may be applied to the reflecting surface of the shade 7 and then the clear coating 9 may be applied thereon.
[0025]
【The invention's effect】
According to the desk lamp of claim 1, by applying a clear coating to the lamp mounting surface which is the inner surface of the shade, a part of the lamp light incident on the shade is reflected without passing through the clear coating surface, and the rest is The incident light is incident on the surface of the shade and is reflected there. However, a part of the surface of the clear paint is reflected at a critical angle and does not transmit to the lamp side, and the remainder transmits to the lamp side. Furthermore, since the reflected light of the shade itself is diffusely reflected, the light reflected at the critical angle on the surface of the clear coating increases, so that the shade color can be further prevented from being reflected. As a result, the reflected light from the shade side of the lamp light can greatly reduce the light reflecting the shade color.
[0027]
According to the electric station according to claim 2, the same effect as claim 1.
[Brief description of the drawings]
FIG. 1 is a perspective view of a first embodiment of the present invention.
FIG. 2 is a partial perspective view of the lamp.
FIG. 3 is an enlarged sectional view thereof.
4A and 4B show a second embodiment, in which FIG. 4A is a cross-sectional view of a lamp, and FIG. 4B is a partial cross-sectional view in a state where a diffusive surface treatment is applied to a shade surface.
FIG. 5 is a partial cross-sectional view showing a state where the surface of the shade is treated by diffusive coating.
6A and 6B show a third embodiment, in which FIG. 6A is a cross-sectional view of a lamp, and FIG. 6B is a partial cross-sectional view in a state where a diffusive coating is applied to a shade surface.
FIG. 7 is a perspective view of a conventional shade.
FIG. 8 is an exploded perspective view thereof.
9A is a perspective view of a shade, and FIG. 9B is a cross-sectional view thereof.
[Explanation of symbols]
1 Stand stand 3 Lamp 7 Sade 9 Clear paint 10 Diffusible treatment 11 Diffusible paint 12 Metallic paint

Claims (2)

スタンド台と、反射光が色光を呈する着色を施したセードを有して前記スタンド台に支持された灯具とを備え、前記セードは、前記反射光を形成する反射面に拡散性塗装または拡散性処理を施すことにより多数の凹凸を形成し、その上にクリア塗装を施した電気スタンド。A stand that has a shade that is colored so that the reflected light exhibits colored light and that is supported by the stand; and the shade has a diffusive coating or diffusibility on a reflective surface that forms the reflected light. A desk lamp that has a lot of irregularities formed by processing and has been painted clear . スタンド台と、反射光が色光を呈する着色を施したセードを有して前記スタンド台に支持された灯具とを備え、前記セードは、前記反射光を形成する反射面にメタリック調塗装を施すことにより多数の凹凸を形成し、その上にクリア塗装を施した電気スタンド。 A stand having a shade that is colored so that the reflected light exhibits colored light and supported by the stand; and the shade applies a metallic coating on a reflective surface that forms the reflected light the desk lamp to form a number of irregularities, were subjected to a clear coating on it by.
JP2002053754A 2002-02-28 2002-02-28 Desk lamp Expired - Fee Related JP4089243B2 (en)

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JP4089243B2 true JP4089243B2 (en) 2008-05-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104197233A (en) * 2014-09-09 2014-12-10 无锡市翱宇特新科技发展有限公司 Multifunctional table lamp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5037287B2 (en) * 2007-09-28 2012-09-26 パナソニック株式会社 Stand type lighting fixture
JP4951453B2 (en) * 2007-09-28 2012-06-13 パナソニック株式会社 Stand type lighting fixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104197233A (en) * 2014-09-09 2014-12-10 无锡市翱宇特新科技发展有限公司 Multifunctional table lamp

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