JPH03105850A - Halogen lamp with variable illumination angle - Google Patents
Halogen lamp with variable illumination angleInfo
- Publication number
- JPH03105850A JPH03105850A JP24197689A JP24197689A JPH03105850A JP H03105850 A JPH03105850 A JP H03105850A JP 24197689 A JP24197689 A JP 24197689A JP 24197689 A JP24197689 A JP 24197689A JP H03105850 A JPH03105850 A JP H03105850A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- lamp
- halogen bulb
- bulb
- halogen
- 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
- 229910052736 halogen Inorganic materials 0.000 title claims abstract description 18
- 150000002367 halogens Chemical class 0.000 title claims abstract description 17
- 238000005286 illumination Methods 0.000 title claims 2
- 230000003287 optical effect Effects 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 abstract 2
- 238000012856 packing Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Abstract
Description
【産業上の利用分野１
本発明はミラー付きランプに係る。
【従来の技術】
ハロゲン電球にミラーを取付ける場合、該電球とミラー
とを無機接着剤で接着する方法、あるいは，点灯器具に
ミラーを取付け、該器具にランプを装着する方法が知ら
れている．これらの場合，照射角度の広がりは、ミラー
の形状によって一義に決定される．又、ミラーと電球と
を可動とした方式（特開昭６０−１６３３０３）も知ら
れているが、配光はランプを点灯してみなければ解らず
、点灯した状態で調整することには困難が伴った．なお
、この種のランプとして関連するものには例えば，特開
昭６０−７０６６２ ，同６０−２５４５５１ ，同６
１−２１６２３３，同６３−５５８４７号などがあげら
れる。[Industrial Field of Application 1] The present invention relates to a lamp with a mirror. [Prior Art] When attaching a mirror to a halogen light bulb, it is known to adhere the light bulb and mirror with an inorganic adhesive, or to attach the mirror to a lighting device and then attach the lamp to the device. In these cases, the spread of the irradiation angle is uniquely determined by the shape of the mirror. Also, a system in which a mirror and a light bulb are movable is known (Japanese Patent Application Laid-Open No. 60-163303), but the light distribution cannot be determined until the lamp is lit, and it is difficult to adjust it while the lamp is lit. accompanied. Incidentally, related lamps of this type include, for example, JP-A-60-70662, JP-A-60-254551, JP-A-6
1-216233, 63-55847, etc.
本発明の目的は、小形で軽量なランプの特徴を損なうこ
と無く、照射角度の広がりを簡便に可変とすることにあ
る。An object of the present invention is to easily vary the spread of the irradiation angle without impairing the characteristics of a compact and lightweight lamp.
上記目的を達或するために、本発明によるランプでは，
ランプとミラーとの光軸上の位置関係を段階的に可動な
ものとし、ランプとミラーとの相対距離を可変とした．
枡制
ランプの発光点であるフィラメントが、概略、放物面状
、あるいは，楕円面状をしたミラーの焦点に位置する場
合、ランプからの反射光はビーム状となり、照射角度は
狭くなる．又、フィラメントがミラーの焦点から外れた
場合は、その度合に応じて，反射光はぼけたものとなり
、照射角度は広がったものとなる．このフィラメント位
置とミラーの焦点位置とをミラー上に設けた突起とハロ
ゲンランプを固定した金具の突起とを嵌合することによ
り多段的に調節することが出来る。In order to achieve the above object, the lamp according to the present invention has the following features:
The positional relationship between the lamp and mirror on the optical axis can be moved in stages, and the relative distance between the lamp and mirror can be varied. When the filament, which is the light emitting point of a cell-controlled lamp, is located at the focal point of a roughly parabolic or ellipsoidal mirror, the reflected light from the lamp becomes a beam, and the irradiation angle becomes narrow. Also, if the filament deviates from the focus of the mirror, the reflected light will become blurred and the irradiation angle will become wider depending on the degree of deviation. The filament position and the focal point position of the mirror can be adjusted in multiple stages by fitting a protrusion provided on the mirror with a protrusion on a metal fitting to which a halogen lamp is fixed.
以下，本発明の実施例を説明する。
第１図及び第２図において、ハロゲン電球１は，つば付
き金具３にセメント６で接着するか、又は，嵌合し固定
されており、鋳造或形されたガラス、又は、鍛造成形さ
れたアルミ等の金属の内面に無機多層膜をコートしたダ
イクロイック反射Ｍ（ミラー）２は、つば付き金具３と
その底部で嵌合し固定されている．
ミラー２はその端部に３段の突起２１が有り、つば付き
金具３の突起３１は自身のバネ性によって、突起２１と
結合している。この結合位置を変えることにより、ハロ
ゲン電球１とミラー２との軸−ヒの位置を変えることが
出来る。又、ハロゲン電球１とミラー２との横ずれを防
止するために、それぞれに設けた縦溝２２と突起３２ヒ
が嵌合している．
ミラー２は鋳造或形されたガラス，又は、プラスチック
製のレンズを兼ねたカバー４とゴムパッキング５により
固定されている。ゴムパッキング５はミラーの端部近傍
を被う形となっており，その周上に複数個の通気口が設
けられている。Examples of the present invention will be described below. In FIGS. 1 and 2, a halogen light bulb 1 is fixed to a flange fitting 3 by bonding or fitting with cement 6, and is made of cast or shaped glass or forged aluminum. A dichroic reflection mirror M (mirror) 2, which is made of a metal whose inner surface is coated with an inorganic multilayer film, is fitted and fixed to a flanged metal fitting 3 at its bottom. The mirror 2 has three stages of protrusions 21 at its end, and the protrusions 31 of the flanged metal fitting 3 are connected to the protrusions 21 by their own spring properties. By changing this coupling position, the axis-hi position between the halogen bulb 1 and the mirror 2 can be changed. Further, in order to prevent the halogen bulb 1 and the mirror 2 from shifting laterally, the vertical grooves 22 and the protrusions 32 provided on each are fitted together. The mirror 2 is fixed by a cover 4 made of cast or shaped glass or plastic which also serves as a lens, and a rubber packing 5. The rubber packing 5 is shaped to cover the vicinity of the end of the mirror, and a plurality of ventilation holes are provided on the circumference thereof.
以上述べた如く、本発明によれば、ハロゲン電球とミラ
ーとの位置を簡便に変更することが出来、それにより，
ランプの照射角度を変えることが出来る。As described above, according to the present invention, the positions of the halogen light bulb and the mirror can be easily changed, and thereby,
You can change the irradiation angle of the lamp.
第１図は本発明のミラー付きハロゲン電球を示す側面図
であり、第２図はその側面の要部断面図である．
符号の説明
１・・・ハロゲン電球
３・・・つば付き金具
５・・・パッキング
２・・・ミラー
４・・・カバー
第１図
寥２図FIG. 1 is a side view showing a halogen light bulb with a mirror according to the present invention, and FIG. 2 is a sectional view of a main part of the side view. Explanation of symbols 1...Halogen bulb 3...Brimmed fitting 5...Packing 2...Mirror 4...Cover Fig. 1 Fig. 2
Claims (1)
、該ハロゲン電球とミラーとの間隔を光軸上で可変とし
、二段階以上に段階的に調節可能としたことを特徴とす
る照射角可変型ハロゲンランプ。 ２、請求項１記載の照射角可変型ハロゲンランプにおい
て、上記ミラー上に突起を設け、上記ハロゲンランプを
固定した金具の突起と嵌合させたことを特徴とする照射
角可変型ハロゲンランプ。[Claims] 1. A lamp consisting of a halogen bulb and a mirror, characterized in that the distance between the halogen bulb and the mirror is variable on the optical axis and can be adjusted in two or more steps. Variable irradiation angle halogen lamp. 2. The variable illumination angle halogen lamp according to claim 1, wherein a protrusion is provided on the mirror and is fitted with a protrusion of a metal fitting to which the halogen lamp is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24197689A JPH03105850A (en) | 1989-09-20 | 1989-09-20 | Halogen lamp with variable illumination angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24197689A JPH03105850A (en) | 1989-09-20 | 1989-09-20 | Halogen lamp with variable illumination angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03105850A true JPH03105850A (en) | 1991-05-02 |
Family
ID=17082394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24197689A Pending JPH03105850A (en) | 1989-09-20 | 1989-09-20 | Halogen lamp with variable illumination angle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03105850A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7024129B2 (en) | 2000-02-24 | 2006-04-04 | Ricoh Company, Ltd. | Air exhaust device having resilient member for reducing noise, and image forming apparatus using the same air exhaust device |
| JP2017058669A (en) * | 2015-09-18 | 2017-03-23 | コニカミノルタ株式会社 | Image forming apparatus |
-
1989
- 1989-09-20 JP JP24197689A patent/JPH03105850A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7024129B2 (en) | 2000-02-24 | 2006-04-04 | Ricoh Company, Ltd. | Air exhaust device having resilient member for reducing noise, and image forming apparatus using the same air exhaust device |
| JP2017058669A (en) * | 2015-09-18 | 2017-03-23 | コニカミノルタ株式会社 | Image forming apparatus |
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