JPH0339713U - - Google Patents
Info
- Publication number
- JPH0339713U JPH0339713U JP9969089U JP9969089U JPH0339713U JP H0339713 U JPH0339713 U JP H0339713U JP 9969089 U JP9969089 U JP 9969089U JP 9969089 U JP9969089 U JP 9969089U JP H0339713 U JPH0339713 U JP H0339713U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- writing
- synchronous detection
- detection light
- writing optical
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 4
- 230000001360 synchronised effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図は本考案に係る書込光学系の構成を説明
した平面図、第２図は同上図の要部を説明した正
面図、第３図はゴースト像カツト部材の正面図、
第４図はゴースト像カツト部材の傾きの態様を説
明した図、第５図は従来技術に係る書込光学系の
構成を説明した平面図である。
７……レンズ、８……光フアイバー、９……ゴ
ースト像カツト部材。
FIG. 1 is a plan view illustrating the configuration of the writing optical system according to the present invention, FIG. 2 is a front view illustrating the main parts of the same figure, and FIG. 3 is a front view of the ghost image cutting member.
FIG. 4 is a diagram illustrating the manner of inclination of the ghost image cutting member, and FIG. 5 is a plan view illustrating the configuration of a writing optical system according to the prior art. 7... Lens, 8... Optical fiber, 9... Ghost image cutting member.
Claims (1)
向器からの走査光を受光する被走査面と、走査方
向上の空間位置であつて被走査面での書出し位置
前方に設けられた同期検知光入射部を有する書込
光学系において、 走査光の進行方向上、同期検知光入射部の前方
位置にゴースト像カツト部材を配置したことを特
徴とする書込光学系。 ２ 同期検知光入射部が光フアイバーまたは光フ
アイバーへ光を導くレンズであることを特徴とす
る請求項第１項記載の書込光学系。 ３ ゴースト像カツト部材が、ハーフミラーで構
成されていて、このハーフミラーのミラーコート
面が同期検知光入射部に対向して配置され、かつ
、ミラーコート面が光路に対し直角となる配置か
らずらして配置されていることを特徴とする請求
項第１項または第２項記載の書込光学系。[Claims for Utility Model Registration] 1. A deflector that scans a laser beam, a scanned surface that receives scanning light from this deflector, and a spatial position in the scanning direction that is in front of the writing position on the scanned surface. What is claimed is: 1. A writing optical system having a synchronous detection light entrance section provided in the writing optical system, characterized in that a ghost image cutting member is disposed at a position in front of the synchronous detection light entrance section in the traveling direction of the scanning light. 2. The writing optical system according to claim 1, wherein the synchronous detection light incidence section is an optical fiber or a lens that guides light to the optical fiber. 3. The ghost image cutting member is composed of a half mirror, and the mirror coated surface of the half mirror is arranged to face the synchronous detection light incident part, and the mirror coated surface is shifted from the arrangement where it is perpendicular to the optical path. 3. The writing optical system according to claim 1, wherein the writing optical system is arranged as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989099690U JP2534251Y2 (en) | 1989-08-25 | 1989-08-25 | Writing optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989099690U JP2534251Y2 (en) | 1989-08-25 | 1989-08-25 | Writing optical system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0339713U true JPH0339713U (en) | 1991-04-17 |
| JP2534251Y2 JP2534251Y2 (en) | 1997-04-30 |
Family
ID=31648728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989099690U Expired - Lifetime JP2534251Y2 (en) | 1989-08-25 | 1989-08-25 | Writing optical system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2534251Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63273822A (en) * | 1987-05-01 | 1988-11-10 | Toshiba Corp | Laser scanning system |
-
1989
- 1989-08-25 JP JP1989099690U patent/JP2534251Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63273822A (en) * | 1987-05-01 | 1988-11-10 | Toshiba Corp | Laser scanning system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2534251Y2 (en) | 1997-04-30 |
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