JPH0324602U - - Google Patents
Info
- Publication number
- JPH0324602U JPH0324602U JP8513889U JP8513889U JPH0324602U JP H0324602 U JPH0324602 U JP H0324602U JP 8513889 U JP8513889 U JP 8513889U JP 8513889 U JP8513889 U JP 8513889U JP H0324602 U JPH0324602 U JP H0324602U
- Authority
- JP
- Japan
- Prior art keywords
- light
- slit
- width
- reflecting tube
- longitudinal direction
- 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
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
Landscapes
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図は一実施例の光源装置の開口形成位置説
明図、第２図は一実施例の光源装置を含む印字ヘ
ツドの模式的断面図、第３図は一実施例の光源装
置の斜視図、第４図、第５図は開口の大きさを説
明する為の図、第６図は従来の光源装置の斜視図
である。
１１…ハロゲンランプ、１２…反射鏡、１３…
光伝送ロツド、１４…光拡散部、１５…ケーシン
グ、１５ａ…上面反射部、１６…スリツト、１７
…反射板、１８，１９…開口。
FIG. 1 is an explanatory diagram of the aperture formation position of a light source device of one embodiment, FIG. 2 is a schematic sectional view of a print head including the light source device of one embodiment, and FIG. 3 is a perspective view of the light source device of one embodiment. , FIG. 4, and FIG. 5 are diagrams for explaining the size of the aperture, and FIG. 6 is a perspective view of a conventional light source device. 11...Halogen lamp, 12...Reflector, 13...
Optical transmission rod, 14... Light diffusing section, 15... Casing, 15a... Top reflecting section, 16... Slit, 17
...Reflector, 18, 19...Aperture.
Claims (1)
端から入射された光を他端側に伝送する光伝送体
を筒状の反射管内に有し、入射された光を前記反
射管の長手方向に沿つて形成されたスリツトから
出射する光源装置において、 前記反射管の前記スリツトの反対側の一部に幅
Ｗの反射防止手段を設け、該幅Ｗは前記スリツト
の幅をＴとし前記光伝送体の屈折率をｎとすると
き、 Ｗ＞Ｔ・ｎ２−ｎの関係を有し、 前記反射防止手段により光の一部を非反射状態
にさせることにより前記スリツトから出射される
前記反射管の長手方向に対する光強度を均一化す
ることを特徴とする光源装置。[Claims for Utility Model Registration] A cylindrical reflecting tube has a light transmitting body in which a light diffusing portion is formed along the longitudinal direction of the circumferential surface and transmits light incident from one end to the other end. In a light source device that emits light from a slit formed along the longitudinal direction of the reflecting tube, an anti-reflection means having a width W is provided in a part of the reflecting tube on the opposite side of the slit, and the width W is the same as the width W. When the width of the slit is T and the refractive index of the optical transmission body is n, there is a relationship of W>T・n2−n, and by making a part of the light non-reflective by the antireflection means, A light source device characterized in that the light intensity emitted from the slit is made uniform in the longitudinal direction of the reflecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8513889U JPH0324602U (en) | 1989-07-20 | 1989-07-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8513889U JPH0324602U (en) | 1989-07-20 | 1989-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0324602U true JPH0324602U (en) | 1991-03-14 |
Family
ID=31634093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8513889U Pending JPH0324602U (en) | 1989-07-20 | 1989-07-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324602U (en) |
-
1989
- 1989-07-20 JP JP8513889U patent/JPH0324602U/ja active Pending