JPS6412045B2 - - Google Patents
Info
- Publication number
- JPS6412045B2 JPS6412045B2 JP16575382A JP16575382A JPS6412045B2 JP S6412045 B2 JPS6412045 B2 JP S6412045B2 JP 16575382 A JP16575382 A JP 16575382A JP 16575382 A JP16575382 A JP 16575382A JP S6412045 B2 JPS6412045 B2 JP S6412045B2
- Authority
- JP
- Japan
- Prior art keywords
- filament
- type
- light bulb
- long axis
- reflecting mirror
- 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
Links
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
【発明の詳細な説明】
本発明は、横フイラメントタイプの電球を用い
た照明器具に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lighting device using a horizontal filament type light bulb.
従来、非常灯などに用いられる低ボルトミニハ
ロゲン電球は、そのフイラメントの配置方向によ
つてJIS規格のC8タイプ（縦フイラメント）とC6
タイプ（横フイラメント）とが存する。C8タイ
プのものは回転反射鏡の中心に配置した場合、そ
の配光特性が円配光となつて理想的であるが、電
球自体の製造がきわめて困難であると云う欠点を
有する。また、C6タイプは第１図および第２図
に示すように透明な外囲器１の長手方向に対して
フイラメント２は横に配設されており、きわめて
製作し易い。しかしながら、回転反射鏡と組合せ
た場合にはフイラメント２が焦点に対して広い範
囲に分布し、これにより、第３図に示すようにフ
イラメント２と直交するＡ−Ａ方向の照度は高
く、そのフイラメント２にそつたＢ−Ｂ方向の照
度は低いと云う配光特性しか得られない。そのた
め、たとえば床面における1lxの範囲をみると第
４図のαで示すような楕円状態になり、器具の性
能としては短軸方向の配光特性により決められて
しまうものである。 Conventionally, low-voltage mini halogen light bulbs used for emergency lights etc. are classified into JIS standard C8 type (vertical filament) and C6 type, depending on the direction of filament arrangement.
There are two types (horizontal filament). When the C8 type bulb is placed in the center of the rotating reflector, its light distribution characteristics become circular, which is ideal, but it has the disadvantage that the bulb itself is extremely difficult to manufacture. Further, in the C6 type, as shown in FIGS. 1 and 2, the filament 2 is disposed laterally with respect to the longitudinal direction of the transparent envelope 1, making it extremely easy to manufacture. However, when combined with a rotating reflector, the filament 2 is distributed over a wide range with respect to the focal point, and as a result, as shown in FIG. 2, the illuminance in the B-B direction is only low. Therefore, for example, if we look at the area of 1l x on the floor surface, it will be in an elliptical state as shown by α in Figure 4, and the performance of the fixture will be determined by the light distribution characteristics in the short axis direction.
このようなことから、C6タイプの欠点を補う
ものとしてフイラメントを斜めに配設してC6タ
イプとC8タイプとの中間のものを採用している
ものがある。この方式のものは配光特性について
みるとC6タイプよりは効果があるが、不均一性
があり、また、C8タイプほどではないが製造上
の困難性を伴うものである。 For this reason, in order to compensate for the drawbacks of the C6 type, there are some that use an intermediate type between the C6 type and the C8 type by arranging the filament diagonally. This method is more effective than the C6 type in terms of light distribution characteristics, but it is non-uniform, and it is also accompanied by manufacturing difficulties, although not as much as the C8 type.
本発明は、このような点に鑑みなされたもの
で、製造が容易な横フイラメントタイプの電球を
用いても理想的な円配光を得ることができる照明
器具を提供することを目的とする。 The present invention has been made in view of these points, and an object of the present invention is to provide a lighting fixture that can obtain an ideal circular light distribution even when using a horizontal filament type light bulb that is easy to manufacture.
本発明の一実施例を第５図ないし第８図に基い
て説明する。本実施例は非常灯に係るもので、天
囲面３に筒状の本体ケース４が取付けられ、この
本体ケース４の内部にはC6タイプの電球５を保
持するソケツト６と電池７とが設けられている。
そして、前記本体ケース４の開口部には化粧枠８
が下方へ移動自在に取付けられ、この化粧枠８の
開口９と前記ソケツト６との間には反射鏡１０が
着脱自在に取付けられている。この反射鏡１０は
楕円放物面状のもので、前記電球５のフイラメン
ト１１の方向にそつて短軸で、そのフイラメント
１１の方向と直交する方向に長軸であるように設
定されている。すなわち、フイラメント１１の長
軸端面に光学的に対向する対向面を長軸とした水
平面内の断面が楕円放物面状であるように設定さ
れている。また、前記開口９も前記反射鏡１０と
同様に楕円形状をしている。 An embodiment of the present invention will be explained based on FIGS. 5 to 8. This embodiment relates to an emergency light, in which a cylindrical main body case 4 is attached to a ceiling surface 3, and a socket 6 for holding a C6 type light bulb 5 and a battery 7 are provided inside the main body case 4. It is being
A decorative frame 8 is provided at the opening of the main body case 4.
is attached so as to be movable downward, and a reflecting mirror 10 is detachably attached between the opening 9 of the decorative frame 8 and the socket 6. This reflecting mirror 10 has an ellipsoidal parabolic shape, and is set so that its short axis is along the direction of the filament 11 of the light bulb 5, and its long axis is in the direction perpendicular to the direction of the filament 11. That is, the filament 11 is set to have an elliptic parabolic cross section in a horizontal plane with its long axis at the opposing surface that optically opposes the long axis end surface. Further, the opening 9 also has an elliptical shape similar to the reflecting mirror 10.
このような構成において、電球５が点灯した場
合には反射鏡１０の反射面が楕円放物面状である
ため、フイラメント１１にそつたＢ−Ｂ方向の反
射面の反射効率がそれに直交するＡ−Ａ方向より
も高い。そのため、両方向の配光特性をみると、
第８図に示すようなＡ−Ａ方向とＢ−Ｂ方向とが
ほとんど同じである。その結果、床面での1lxの
照度の範囲をみると、第４図のβに示すようにほ
とんど円配光である。 In such a configuration, when the light bulb 5 is lit, the reflecting surface of the reflecting mirror 10 has an ellipsoidal paraboloid shape, so that the reflection efficiency of the reflecting surface in the B-B direction along the filament 11 is A, which is perpendicular to it. -Higher than the A direction. Therefore, looking at the light distribution characteristics in both directions,
The AA direction and the BB direction as shown in FIG. 8 are almost the same. As a result, when looking at the range of illuminance of 1l x on the floor surface, the light distribution is almost circular as shown by β in Fig. 4.
本発明は、上述のように横フイラメントタイプ
の電球を用いても楕円放物面による反射鏡をフイ
ラメントの方向に合わせて使用することにより、
フイラメントが横方向に長いにも拘わらず円配光
を得ることができ、これにより、器具としての実
質的な性能を高めることができ、電球も製造し易
い安価なものでよい等の効果を有するものであ
る。 As described above, even if a horizontal filament type light bulb is used, the present invention uses a reflecting mirror formed by an elliptical paraboloid in accordance with the direction of the filament.
Even though the filament is long in the lateral direction, it is possible to obtain circular light distribution, which improves the practical performance of the device, and has the effect that the light bulb can be easily manufactured and inexpensive. It is something.
第１図はC6タイプの電球の縦断側面図、第２
図はその水平断面図、第３図は回転反射鏡を用い
た場合の配光特性図、第４図は床面における照度
分布、第５図は本発明の一実施例を示す一部を切
欠いた側面図、第６図はその底面図、第７図は電
球と反射鏡との関係を示す配置図、第８図は配光
特性図である。
５…電球、１０…反射鏡、１１…フイラメン
ト。
Figure 1 is a vertical side view of a C6 type light bulb, Figure 2
The figure is a horizontal cross-sectional view, Figure 3 is a light distribution characteristic diagram when a rotating reflector is used, Figure 4 is the illuminance distribution on the floor, and Figure 5 is a partially cutaway diagram showing an embodiment of the present invention. 6 is a bottom view, FIG. 7 is a layout diagram showing the relationship between a light bulb and a reflecting mirror, and FIG. 8 is a light distribution characteristic diagram. 5...Light bulb, 10...Reflector, 11...Filament.
Claims (1)
をなした横フイラメントタイプの電球の周囲に、
投光開口を有しフイラメントの長軸端面に光学的
に対向する対向面を長軸とした水平面内の断面が
楕円放物面状の反射鏡を配置したことを特徴とす
る照明器具。1 Inside the transparent envelope, around the horizontal filament type light bulb, which has a straight shape when viewed from the front side,
1. A lighting device characterized in that a reflecting mirror having a light projection opening and having a cross section in a horizontal plane having an elliptic paraboloid shape is arranged, the long axis being an opposing surface optically opposed to the long axis end surface of a filament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16575382A JPS5956304A (en) | 1982-09-22 | 1982-09-22 | Illuminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16575382A JPS5956304A (en) | 1982-09-22 | 1982-09-22 | Illuminator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5956304A JPS5956304A (en) | 1984-03-31 |
| JPS6412045B2 true JPS6412045B2 (en) | 1989-02-28 |
Family
ID=15818406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16575382A Granted JPS5956304A (en) | 1982-09-22 | 1982-09-22 | Illuminator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5956304A (en) |
-
1982
- 1982-09-22 JP JP16575382A patent/JPS5956304A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5956304A (en) | 1984-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63155202U (en) | ||
| US4536834A (en) | R lamp having an improved neck section for increasing the useful light output | |
| JPS62213062A (en) | Blow lamp bulb and incandescent lamp using the same | |
| JPS6412045B2 (en) | ||
| JP4062662B2 (en) | Lighting fixtures for vehicles | |
| JPS639921Y2 (en) | ||
| JPH0393103A (en) | Reflector for reflection type lighting fixture | |
| JPH0247522Y2 (en) | ||
| JPS6325442B2 (en) | ||
| JPH049687Y2 (en) | ||
| JPS6213285Y2 (en) | ||
| JP3511758B2 (en) | lighting equipment | |
| JPH0139362Y2 (en) | ||
| JPH0319121Y2 (en) | ||
| JPH0222893Y2 (en) | ||
| JPH0314733Y2 (en) | ||
| JPH0249744U (en) | ||
| JPS6022495Y2 (en) | lighting equipment | |
| JPH0211681Y2 (en) | ||
| JPS6327362Y2 (en) | ||
| JPH0314729Y2 (en) | ||
| JPS61123403U (en) | ||
| JPS61129222U (en) | ||
| JPS6347201B2 (en) | ||
| JPS63186005U (en) |