JPS5567760A - Stain preventing device of focusing type optical transmission body array - Google Patents
Stain preventing device of focusing type optical transmission body arrayInfo
- Publication number
- JPS5567760A JPS5567760A JP14063178A JP14063178A JPS5567760A JP S5567760 A JPS5567760 A JP S5567760A JP 14063178 A JP14063178 A JP 14063178A JP 14063178 A JP14063178 A JP 14063178A JP S5567760 A JPS5567760 A JP S5567760A
- Authority
- JP
- Japan
- Prior art keywords
- hood
- sla
- optical transmission
- type optical
- transmission body
- 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
Landscapes
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
PURPOSE: To protect the end face of the focusing type optical transmission body array from contamination by adding a hood which encloses the envelope of the effective imaging luminous flux sent out from said array and forming the exposure side opening of said hood to slit-form.
CONSTITUTION: A hood 8 is removably added to the exposure side end face 3a of a focusing type optical transmission body array SLA 3. This hood 9 is formed by a pair of lengthwise flat plates 9 which are tilted vertically symmertically and right and left triangle end plates 9a. The opening width of the attached side 3a of the SLA 3 is equal to the thickness of the SLA 3 and the opening width of the exposure side opening 8c is of the size nearly equal to the thickness of the effective imaging luminous flux. Further, surface treatment such as matte coating or the like of, e.g., black color, is applied on the inside surface of said hood 9 in order to prevent flare. By doing in this way, staining of the optical path surface of the effective imaging luminous flux with dust or the like from the photoreceptor 2 is virtually eliminated and the end face of the SLA 3 may be protected from contamination.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14063178A JPS5567760A (en) | 1978-11-15 | 1978-11-15 | Stain preventing device of focusing type optical transmission body array |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14063178A JPS5567760A (en) | 1978-11-15 | 1978-11-15 | Stain preventing device of focusing type optical transmission body array |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5567760A true JPS5567760A (en) | 1980-05-22 |
Family
ID=15273178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14063178A Pending JPS5567760A (en) | 1978-11-15 | 1978-11-15 | Stain preventing device of focusing type optical transmission body array |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5567760A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5768867A (en) * | 1980-10-17 | 1982-04-27 | Seiko Epson Corp | Printing device |
JPS5770569A (en) * | 1980-10-20 | 1982-05-01 | Seiko Epson Corp | Imaging method |
-
1978
- 1978-11-15 JP JP14063178A patent/JPS5567760A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5768867A (en) * | 1980-10-17 | 1982-04-27 | Seiko Epson Corp | Printing device |
JPS5770569A (en) * | 1980-10-20 | 1982-05-01 | Seiko Epson Corp | Imaging method |
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