JPH01195650A - Electric bulb - Google Patents
Electric bulbInfo
- Publication number
- JPH01195650A JPH01195650A JP2055788A JP2055788A JPH01195650A JP H01195650 A JPH01195650 A JP H01195650A JP 2055788 A JP2055788 A JP 2055788A JP 2055788 A JP2055788 A JP 2055788A JP H01195650 A JPH01195650 A JP H01195650A
- Authority
- JP
- Japan
- Prior art keywords
- light shielding
- light
- filament
- bulb
- shielding body
- 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
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive effect Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 12
- 239000003973 paint Substances 0.000 abstract description 4
- 235000019353 potassium silicate Nutrition 0.000 abstract description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000454 talc Substances 0.000 abstract description 2
- 229910052623 talc Inorganic materials 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、バルブの内部にフィラメントを有する電球に
関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a light bulb having a filament inside the bulb.
従来の技術
一般照明用器具の反射体は、回転放物面、回転楕円面、
円面、それらの組み合わせによって作られ、その反射体
の軸線上にフィラメントを配置し、フィラメントから発
せられた光を反射体によって制御し、目的とする配光を
得ている。Conventional technology Reflectors for general lighting fixtures are paraboloids of revolution, ellipsoids of revolution,
A filament is placed on the axis of the reflector, and the light emitted from the filament is controlled by the reflector to obtain the desired light distribution.
しかし、フィラメントから発せられた光のうち、反射体
方向へ向かわず、直接前方へ向かった光は目的とする配
光を乱すばかりでなく、眩光となるため、器具の前面に
遮光板を取り付け、フィラメントからの直射光を防いで
いる。また、他の例として、電球のバルブの外壁面上に
遮光塗料を塗布して、直射光を防いでいるものも自動車
の前照灯用ハロゲン電球などにある。However, among the light emitted from the filament, the light that does not go toward the reflector but directly ahead not only disturbs the intended light distribution but also causes glare, so a light shielding plate is attached to the front of the device. Prevents direct light from the filament. As another example, some halogen light bulbs for automobile headlights have a light shielding paint coated on the outer wall of the light bulb to prevent direct light.
発明が解決しようとする課題
しかしながら、バルブの外壁面上に遮光塗料を塗布した
ものは、フィラメントの長さが長いものではバルブ径が
小さすぎ、遮光効果が少ない。また、器具に遮光板を取
り付けた場合には、電球と遮光板との間隔をある程度と
る必要があるので、十分な遮光効果を得るためには、遮
光板を大型とする必要があり、そのため、有効な光もあ
る程度遮光されてしまうという欠点があった。Problems to be Solved by the Invention However, when a light shielding paint is applied on the outer wall surface of a bulb, the diameter of the bulb is too small if the length of the filament is long, and the light shielding effect is low. In addition, when a light shielding plate is attached to a fixture, it is necessary to leave a certain distance between the light bulb and the light shielding plate, so in order to obtain a sufficient light shielding effect, the light shielding plate needs to be large. The drawback is that some effective light is also blocked.
本発明は、上記のような問題点を解決するためになされ
たもので、十分な遮光効果を発揮し、しかも、有効な光
の遮光を最小限にとどめることのできる電球を提供する
ことを目的とするものである。The present invention was made in order to solve the above-mentioned problems, and an object of the present invention is to provide a light bulb that exhibits a sufficient light blocking effect and can minimize effective light blocking. That is.
課題を解決するための手段
本発明の電球は、一端に封着部を、他端にチップ部をそ
れぞれ有し、かつ内部にフィラメントを設けたバルブと
、カップ状の遮光体とを備え、前記チップ部に前記遮光
体の底部中央を固着することにより、前記チップ部に前
記遮光体を取り付けたものである。Means for Solving the Problems The light bulb of the present invention includes a bulb having a sealing part at one end and a chip part at the other end, and a filament provided inside, and a cup-shaped light shielding body. The light shielding body is attached to the chip portion by fixing the bottom center of the light shielding body to the chip portion.
作用
この構成により、フィラメント長さが長いものでも、バ
ルブの外壁面上に遮光塗料を塗布したものより遮光効果
が太き（、また遮光体とフィラメントとの位置関係を、
電球自体で精度良く定めることができるので、小型の遮
光体で遮光効果を十分に発揮することができる。Effect With this configuration, even if the filament is long, the light shielding effect is greater than that of a light shielding paint applied on the outer wall of the bulb (and the positional relationship between the light shield and the filament is
Since the light bulb itself can be used to accurately determine the amount of light, a small light shielding body can provide a sufficient light shielding effect.
実施例 以下、本発明の実施例について図面を用いて説明する。Example Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例である電球を示す。FIG. 1 shows a light bulb which is an embodiment of the present invention.
同図において、１は一端にピンチシール部２を有し、他
端に排気管のチップ部３を有するバルブ、４．５はピン
チシール部２からバルブ１の内部にそれぞれ延びている
内部導入線、６はバルブ１内に設けられ、内部導入線４
，５間に張架された長さ１０ ｔｔｖａ 、外径２１Ｖ
ａのフィラメント、７は平底カップ状の最大径２７鴫の
遮光体で、その底部の中央に直径４Ｍの小孔８がおいて
いる。その小孔にチップ部３を挿通し、そのチップ部３
の外表面に水ガラスとタルクを主成分とする接着剤９を
接着し、これにより、遮光体７はチップ部３の根元ＩＯ
と接着剤９によってはさまれ、固定されている。遮光体
７の下端Ｃはフィラメント６の上端へから２鴫上の位置
りでバルブ軸Ｐ、Ｑと直交する平面Ｈ上にある。フィラ
メント６の下端Ｂと遮光体７の下端Ｃとを結んだ直線Ｅ
とバルブ軸ＰＱとのなす角θは次式（１）によって求め
られる。In the figure, 1 is a valve having a pinch seal part 2 at one end and an exhaust pipe tip part 3 at the other end, and 4.5 is an internal lead-in line extending from the pinch seal part 2 into the inside of the valve 1. , 6 are provided in the valve 1, and the internal lead-in line 4
,5 length 10 ttva, outer diameter 21V
The filament 7 is a flat-bottomed cup-shaped light-shielding body with a maximum diameter of 27mm, and a small hole 8 with a diameter of 4M is placed in the center of its bottom. Insert the tip part 3 into the small hole, and
An adhesive 9 mainly composed of water glass and talc is adhered to the outer surface of the chip portion 3.
and is sandwiched and fixed by adhesive 9. The lower end C of the light shielding body 7 is located two degrees above the upper end of the filament 6 and on a plane H perpendicular to the bulb axes P and Q. A straight line E connecting the lower end B of the filament 6 and the lower end C of the light shield 7
The angle θ formed by the valve axis PQ and the valve axis PQ is determined by the following equation (1).
ｄ
θ＝ ｊ ａ ｎ”−’−旦−又−・・・・・・（１）
ｅ＋ｙ
このθが直射光が完全に遮光される角度である。d θ= j a n”-'-dan-mata-... (1)
e+y This θ is the angle at which direct light is completely blocked.
ここで、Ｒは遮光体の最大直径（ｍｍ）、ｆ！はフィラ
メントの長さ（ｍｍ）、ｄはフィラメントの外径ｂｎｍ
）、ｙはフィラメントの上端から遮光体の下端Ｃを含む
面までの距離（ｌＴＩＩｌｌ）である。Here, R is the maximum diameter (mm) of the light shield, and f! is the filament length (mm), d is the filament outer diameter bnm
), y is the distance (lTIIll) from the top end of the filament to the plane including the bottom end C of the light shield.
前記実施例の場合、Ｒは２７ＩＩＩＩｌｌＸｅは１０ｍ
ｍ、ｄは２Ｍ％Ｍは２關であるので、上記（１）式から
角度θは約４６度となる。In the case of the above example, R is 27IIIllXe is 10m
Since m and d are 2M% and M is two degrees, the angle θ is approximately 46 degrees from the above equation (1).
ｙが４Ｍとなった場合、角度θは約４２度となる。また
、ｙがＯの場合には、角度θは約５１度となる。When y is 4M, the angle θ is approximately 42 degrees. Further, when y is O, the angle θ is approximately 51 degrees.
以上のように、フィラメントの上端から遮光体の下端を
含む面までの距離ｙが小さいほど、同じ大きさの遮光体
でも遮光効果が太き（なる。しかし、ｙがマイナス、す
なわち、フィラメントの上端より下にさがると、有効光
がカットされるので好ましくない。また、ｙが４ｍを超
えると、遮光効果が低下するので好ましくない。As mentioned above, the smaller the distance y from the top end of the filament to the plane that includes the bottom end of the light shield, the thicker the light shielding effect (becomes) even with the same size of light shield. However, if y is negative, that is, the top end of the filament If it goes further down, effective light will be cut off, which is undesirable.If y exceeds 4 m, the light-shielding effect will deteriorate, which is undesirable.
いま、θを一般に要求される遮光範囲の４０度とし、ｙ
を４ｍｉ＋以下とした場合、必要な遮光体の直径は次式
（２，）より求めることができる。Now, let θ be 40 degrees, which is the generally required shading range, and y
When is set to 4mi+ or less, the diameter of the necessary light shielding body can be obtained from the following equation (2,).
Ｒ≧１．６８＜Ｑ＋４＞＋ｄ ・−・・−（２
）第２図は本発明の他の実施例を示し、第１図との共通
部分には同一番号を付している。第２図において、１１
は平底カップ状の最大径２７閾の遮光体で、その底部の
中央に内径５〜６ｍｍの中空の突起１２が突出している
。その突起の中にチップ部３の周囲に接着剤９を塗布し
たチップ部３を挿入し、接着剤９を加熱することによっ
て硬化させ、チップ部３に遮光体１１を固定している。R≧1.68<Q+4>+d ・−・・−(2
) FIG. 2 shows another embodiment of the present invention, in which parts common to FIG. 1 are given the same numbers. In Figure 2, 11
is a flat-bottom cup-shaped light shielding body with a maximum diameter of 27 thresholds, and a hollow protrusion 12 with an inner diameter of 5 to 6 mm protrudes from the center of its bottom. The chip part 3 coated with an adhesive 9 around the chip part 3 is inserted into the protrusion, and the adhesive 9 is cured by heating to fix the light shielding body 11 to the chip part 3.
この実施例の場合も上記実施例と同様の効果が得られる
。In this embodiment as well, the same effects as in the above embodiment can be obtained.
発明の詳細
な説明したように、本発明の電球は、フィラメントの長
さが長いものでも、小径の遮光体で十分な遮光効果を示
し、また有効光のロスも少な（てずむ。また、特に多層
干渉膜をバルブ表面に設けて、電球からの発光色を変え
ているものにおいて、干渉膜を小さな角度で透過し、電
球の発光色を乱す光を遮光するのに非常に有効である。As described in detail, the light bulb of the present invention has a sufficient light shielding effect even with a small-diameter light shield even when the filament is long, and the loss of effective light is small. Particularly in bulbs in which a multilayer interference film is provided on the surface of the bulb to change the color of the light emitted from the light bulb, it is very effective in blocking light that passes through the interference film at a small angle and disturbs the color of light emitted by the light bulb.
第１図は本発明の一実施例である電球の一部切欠正面図
、第２図は他の実施例の電球の一部切欠正面図である。
■・・・・・・バルブ、３・・・・・・チップ部、６・
・・・・・フィラメント、７，１１・・・・・・遮光体
、８・・・・・・小孔、９・・・・・・接着剤、１２・
・・・・・突起。
代理人の氏名 弁理士 中尾敏男 ほか１名−ｔＷ
Ｕ ＞ 閃 子
Ｕ」FIG. 1 is a partially cutaway front view of a light bulb according to one embodiment of the present invention, and FIG. 2 is a partially cutaway front view of a light bulb according to another embodiment. ■...Valve, 3...Tip part, 6.
... Filament, 7, 11 ... Light shield, 8 ... Small hole, 9 ... Adhesive, 12.
·····protrusion. Name of agent: Patent attorney Toshio Nakao and 1 other person -tW
U > Senko U”
Claims (5)
、かつ内部にフィラメントを設けたバルブと、カップ状
の遮光体とを備え、前記チップ部に前記遮光体の底部中
央を固着することにより、前記チップ部に前記遮光体を
取り付けたことを特徴とする電球。(1) A bulb having a sealing part at one end and a chip part at the other end, and a filament inside, and a cup-shaped light shield, and the tip part has a bottom center of the light shield. A light bulb, characterized in that the light shielding member is attached to the chip portion by being fixed.
、かつ内部にフィラメントを設けたバルブと、底部中央
に小孔を有するカップ状の遮光体とを備え、前記チップ
部を前記小孔に挿通し、さらに前記チップ部に前記遮光
体を接着剤で取り付けたことを特徴とする電球。(2) A bulb having a sealing part at one end and a chip part at the other end and a filament inside, and a cup-shaped light shielding body having a small hole in the center of the bottom, and the chip part A light bulb, characterized in that the light shield is inserted into the small hole and further attached to the chip portion with an adhesive.
、かつ内部にフィラメントを設けたバルブと、底部中央
に中空の突起を有するカップ状の遮光体とを備え、前記
チップ部を前記突起に挿入し、さらに前記チップ部に前
記遮光体を接着剤で取り付けたことを特徴とする電球。(3) A bulb having a sealing part at one end and a chip part at the other end, and a filament provided inside, and a cup-shaped light shielding body having a hollow protrusion at the center of the bottom, and the chip part is inserted into the protrusion, and the light shield is further attached to the chip portion with an adhesive.
４ｍｍ以内で、かつバルブ軸と直交する平面上に位置す
るようチップ部に取り付けたことを特徴とする請求項１
、請求項２または請求項３記載の電球。(4) Place the light shield so that its lower end is from 0 to the upper end of the filament.
Claim 1, characterized in that the valve is attached to the tip part within 4 mm and located on a plane perpendicular to the valve axis.
, the light bulb according to claim 2 or claim 3.
最大直径（ｍｍ）、ｌはフィラメントの長さ（ｍｍ）、
ｄはフィラメントの上端から遮光体の下端を含む面まで
の距離（ｍｎ））を満足する大きさを有していることを
特徴とする請求項４記載の電球。(5) The maximum diameter of the light shield is determined by the formula R≧1.68(l+4)+d (where R is the maximum diameter of the light shield (mm), l is the length of the filament (mm),
5. The light bulb according to claim 4, wherein d has a size that satisfies the distance (mn) from the upper end of the filament to the plane including the lower end of the light shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2055788A JPH01195650A (en) | 1988-01-29 | 1988-01-29 | Electric bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2055788A JPH01195650A (en) | 1988-01-29 | 1988-01-29 | Electric bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01195650A true JPH01195650A (en) | 1989-08-07 |
Family
ID=12030460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2055788A Pending JPH01195650A (en) | 1988-01-29 | 1988-01-29 | Electric bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01195650A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD884738S1 (en) | 2008-09-23 | 2020-05-19 | Apple Inc. | Display screen or portion thereof with icon |
| USD895002S1 (en) | 2017-09-10 | 2020-09-01 | Apple Inc. | Type font |
-
1988
- 1988-01-29 JP JP2055788A patent/JPH01195650A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD884738S1 (en) | 2008-09-23 | 2020-05-19 | Apple Inc. | Display screen or portion thereof with icon |
| USD885435S1 (en) | 2008-09-23 | 2020-05-26 | Apple Inc. | Display screen or portion thereof with icon |
| USD895002S1 (en) | 2017-09-10 | 2020-09-01 | Apple Inc. | Type font |
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