JPH02147259A - Led head - Google Patents
Led headInfo
- Publication number
- JPH02147259A JPH02147259A JP63303117A JP30311788A JPH02147259A JP H02147259 A JPH02147259 A JP H02147259A JP 63303117 A JP63303117 A JP 63303117A JP 30311788 A JP30311788 A JP 30311788A JP H02147259 A JPH02147259 A JP H02147259A
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- led array
- emitting parts
- led
- array chips
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 238000000280 densification Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 108091008695 photoreceptors Proteins 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
- B41J2/45—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using light-emitting diode [LED] or laser arrays
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ＬＥＤヘッド、特に電子写真式プリンタに使
用し光源としてＬＥＤを用いているＬＥＤヘッドに関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an LED head, and particularly to an LED head that is used in an electrophotographic printer and uses an LED as a light source.
従来のＬＥＤヘッドは、基板にマウントされるＬＥＤア
レイチップ６が第３図に示すように直線上に並べられた
発光部５を有して構成される。A conventional LED head is configured such that an LED array chip 6 mounted on a substrate has light emitting parts 5 arranged in a straight line as shown in FIG.
しかしながら、このような上述した従来のＬＥＤヘッド
は、発光部が直線上に並べられたＬＥＤアレイチップに
より構成されており、４００ＤＰ Ｉ（ＤＰＩ：Ｄｏｔ
Ｐｅｒ Ｉｎｃｈ）以上の高密度になると、アルミパ
ターンのエツチング精度により、ＬＥＤアレイチップの
製造歩留りの低下によりコストが高くなるという欠点が
ある。However, the above-mentioned conventional LED head is composed of LED array chips in which light emitting parts are arranged in a straight line, and has a 400 DP I (DPI: Dot
When the density becomes higher than 1.0 cm (per inch), there is a drawback that the manufacturing yield of the LED array chip decreases due to the etching precision of the aluminum pattern, resulting in an increase in cost.
本発明のＬＥＤヘッドは、発光部がちどり状に配置され
ているＬＥＤアレイチップを並べて構成される。The LED head of the present invention is constructed by arranging LED array chips in which light emitting parts are arranged in a staggered manner.
次に、本発明の実施例について、図面を参照して説明す
る。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を含むプリンタの一例を示す
断面図である。FIG. 1 is a sectional view showing an example of a printer including an embodiment of the present invention.
第１図に示すプリンタは、感光体Ａと、ＬＥＤヘッドＢ
とを含んで構成され、ＬＥＤヘッドＢは感光体Ａと対向
している。ＬＥＤアレイチップ１は、基板２にマウント
され、セルフォックレンズアレイ４を固定するためのカ
バー３に取り付ケラれている。また、ＬＥＤアレイチッ
プ１より発光した光はセルフォックレンズアレイ４によ
り集光され、感光体Ａを露光する。The printer shown in Fig. 1 has a photoconductor A and an LED head B.
The LED head B faces the photoreceptor A. The LED array chip 1 is mounted on a substrate 2 and attached to a cover 3 for fixing a SELFOC lens array 4. Furthermore, the light emitted from the LED array chip 1 is collected by the SELFOC lens array 4 and exposes the photoreceptor A.
第２図は第１図に示すＬＥＤアレイチップ１の上面図で
ある。FIG. 2 is a top view of the LED array chip 1 shown in FIG. 1.
このＬＥＤアレイチップ１は、発光部５１゜５２が交互
にちどりになっており、奇数側の発光部５１と偶数側の
発光部５２がそれぞれ直線上に並ぶようにＬＥＤアレイ
チップ１が数個並べられている。In this LED array chip 1, the light emitting parts 51 and 52 are alternately staggered, and several LED array chips 1 are arranged so that the light emitting parts 51 on the odd number side and the light emitting parts 52 on the even number side are lined up in a straight line. It is being
このＬＥＤヘッドを用いたプリンタを使用して印字する
ときは、奇数側の発光部５１と偶数側の発光部５２０点
灯タイミングをずらして露光することにより印字画像が
みだれることは−なし・。When printing using a printer using this LED head, the printed image will not be distorted by exposing the light emitting parts 51 on the odd number side and the light emitting parts 520 on the even number side at different timings.
〔発明の効果〕
本発明のＬＥＤヘッドは、発光部がちどり状に配置され
たＬＥＤアレイチップを使用することにより、コストを
上げることなく高密度化できるという効果がある。[Effects of the Invention] The LED head of the present invention has the effect of increasing the density without increasing cost by using an LED array chip in which the light emitting portions are arranged in a staggered manner.
第１図は本発明の一実施例を含むプリンタの一例を示す
断面図、第２図は第１図に示すＬＥＤアレイチップの上
面図、第３図は従来の一例におけるＬＥＤアレイチップ
の上面図である。
Ａ・・・・・・感光体、Ｂ・・・・・・ＬＥＤヘッド、
１．６・・・・・・ＬＥＤアレイチップ、２・・団・基
板、３・・・・・・カバー ４・旧・・セルフォックレ
ンズアレイ、５．５１．５２・・・・・・発光部。
代理人 弁理士 内 原 晋
￥！Ｊ３図
乙 ＬＥＤアレイラシ７
５発光部
藁２図
／ ＬＥＤアレイチ２ノ′
、！；／、 、５２発光部FIG. 1 is a cross-sectional view showing an example of a printer including an embodiment of the present invention, FIG. 2 is a top view of the LED array chip shown in FIG. 1, and FIG. 3 is a top view of a conventional example of the LED array chip. It is. A...Photoconductor, B...LED head,
1.6...LED array chip, 2...Group/board, 3...Cover 4.Old...SELFOC lens array, 5.51.52...Light emission Department. Agent: Susumu Uchihara, patent attorney! J3 figure O LED array number 7 5 light emitting section 2 figure / LED array number 2',! ;/, ,52 light emitting section
Claims (1)
の発光部がちどり状に配置されている複数のＬＥＤアレ
イチップと、前述ＬＥＤアレイチップからの光を集光す
るセルフォックレンズアレイと、前記セルフォックレン
ズアレイを支持するために前記基板に固定されたカバー
とを含むことを特徴とするＬＥＤヘッド。A substrate, a plurality of LED array chips mounted on the substrate and having light emitting portions in each of the LED array chips arranged in a staggered manner, and a SELFOC lens array for condensing light from the LED array chips; and a cover fixed to the substrate to support the SELFOC lens array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63303117A JPH02147259A (en) | 1988-11-29 | 1988-11-29 | Led head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63303117A JPH02147259A (en) | 1988-11-29 | 1988-11-29 | Led head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02147259A true JPH02147259A (en) | 1990-06-06 |
Family
ID=17917087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63303117A Pending JPH02147259A (en) | 1988-11-29 | 1988-11-29 | Led head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02147259A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848087A (en) * | 1996-01-23 | 1998-12-08 | Fuji Xerox Co., Ltd. | Two-dimensional surface emitting laser array, two-dimensional surface emitting laser beam scanner, two-dimensional surface emitting laser beam recorder, and two-dimensional surface emitting laser beam recording method |
| US5990494A (en) * | 1996-03-28 | 1999-11-23 | Fuji Xerox Co., Ltd. | Optoelectro transducer array, and light-emitting device array and fabrication process thereof |
| US6144685A (en) * | 1996-01-23 | 2000-11-07 | Fuji Xerox Co., Ltd. | Two-dimensional surface emitting laser array, two-dimensional surface emitting laser beam scanner, two-dimensional surface emitting laser beam recorder, and two-dimensional surface emitting laser beam recording method |
| CN100448683C (en) * | 2000-09-05 | 2009-01-07 | 富士施乐株式会社 | Optical writing head and bar-shaped lens and light-emitting element array distribution method |
-
1988
- 1988-11-29 JP JP63303117A patent/JPH02147259A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848087A (en) * | 1996-01-23 | 1998-12-08 | Fuji Xerox Co., Ltd. | Two-dimensional surface emitting laser array, two-dimensional surface emitting laser beam scanner, two-dimensional surface emitting laser beam recorder, and two-dimensional surface emitting laser beam recording method |
| US6144685A (en) * | 1996-01-23 | 2000-11-07 | Fuji Xerox Co., Ltd. | Two-dimensional surface emitting laser array, two-dimensional surface emitting laser beam scanner, two-dimensional surface emitting laser beam recorder, and two-dimensional surface emitting laser beam recording method |
| US5990494A (en) * | 1996-03-28 | 1999-11-23 | Fuji Xerox Co., Ltd. | Optoelectro transducer array, and light-emitting device array and fabrication process thereof |
| CN100448683C (en) * | 2000-09-05 | 2009-01-07 | 富士施乐株式会社 | Optical writing head and bar-shaped lens and light-emitting element array distribution method |
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