JPH0352906U - - Google Patents
Info
- Publication number
- JPH0352906U JPH0352906U JP11337189U JP11337189U JPH0352906U JP H0352906 U JPH0352906 U JP H0352906U JP 11337189 U JP11337189 U JP 11337189U JP 11337189 U JP11337189 U JP 11337189U JP H0352906 U JPH0352906 U JP H0352906U
- Authority
- JP
- Japan
- Prior art keywords
- parabolic reflector
- anode
- front opening
- parabolic
- low reflection
- 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
- 238000010891 electric arc Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Lenses (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
第１図は本考案実施例の説明図、第２図は低反
射領域の説明図、第３図は従来例の配光説明図で
ある。
１……シヨートアーク放電灯、１１……バルブ
、１２……陽極、１３……陰極、Ｋ……アーク輝
点、２……パラボラ反射鏡、２１……前方開口部
、Ｆ……焦点、３……低反射領域、３１……非鏡
面部分。
FIG. 1 is an explanatory diagram of an embodiment of the present invention, FIG. 2 is an explanatory diagram of a low reflection region, and FIG. 3 is an explanatory diagram of light distribution of a conventional example. DESCRIPTION OF SYMBOLS 1... Short arc discharge lamp, 11... Bulb, 12... Anode, 13... Cathode, K... Arc bright spot, 2... Parabolic reflector, 21... Front opening, F... Focal point, 3... ...Low reflection area, 31...Non-specular portion.
Claims (1)
開口側に陽極が位置するように光軸に沿つて配置
され、アーク輝点が当該パラボラ反射鏡の焦点よ
り若干頂部のホール側にずらして配置されたシヨ
ートアーク放電灯とよりなり、前記パラボラ反射
鏡は、その前方開口部近傍の鏡面に低反射領域が
形成されたことを特徴とする光源装置。 A parabolic reflector and an anode are arranged along the optical axis so that the anode is located on the front opening side of the parabolic reflector, and the arc bright spot is arranged slightly shifted toward the hole at the top from the focus of the parabolic reflector. 1. A light source device comprising a short arc discharge lamp, wherein the parabolic reflecting mirror has a low reflection area formed on a mirror surface near a front opening thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11337189U JPH0352906U (en) | 1989-09-29 | 1989-09-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11337189U JPH0352906U (en) | 1989-09-29 | 1989-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0352906U true JPH0352906U (en) | 1991-05-22 |
Family
ID=31661788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11337189U Pending JPH0352906U (en) | 1989-09-29 | 1989-09-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0352906U (en) |
-
1989
- 1989-09-29 JP JP11337189U patent/JPH0352906U/ja active Pending
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