JPS5612662A - Scanner of imaging lens - Google Patents
Scanner of imaging lensInfo
- Publication number
- JPS5612662A JPS5612662A JP8814579A JP8814579A JPS5612662A JP S5612662 A JPS5612662 A JP S5612662A JP 8814579 A JP8814579 A JP 8814579A JP 8814579 A JP8814579 A JP 8814579A JP S5612662 A JPS5612662 A JP S5612662A
- Authority
- JP
- Japan
- Prior art keywords
- guiding
- center
- scanner
- straight line
- backlash
- 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
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
PURPOSE: To provide a scanner which does not affect imaging performance even if some backlash occurs in guiding members by aligning the point of the imaging lens of the scanner to move the lens and the guiding center of the guiding member and the working center of a drive unit.
CONSTITUTION: A scanner is so constituted that the working center of the guiding center driving unit of guiding rods 6 comes on the same straight line P and an imaging lens 4 is so dispoed that the principal point H of the imaging lens aligns onto this straight line, In this case, if any backlash occurs in this guiding system, the guiding center of the guiding rods 6 becomes the turning center of said backlash. The straight line P comes on the axial center of the guiding rods 6 and becomes the center of the axial center of the guiding rods 6 and becomes the center of the two guiding rods 6. A driving wire 8 is fixed onto the above-mentioned straight line P; hence, the backlash of the guiding system is minimized. Even if some backlash occurs in the guiding system of such scanner, the centerline of the luminous flux does not deviate and this makes imaging performance good.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8814579A JPS5612662A (en) | 1979-07-13 | 1979-07-13 | Scanner of imaging lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8814579A JPS5612662A (en) | 1979-07-13 | 1979-07-13 | Scanner of imaging lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5612662A true JPS5612662A (en) | 1981-02-07 |
Family
ID=13934759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8814579A Pending JPS5612662A (en) | 1979-07-13 | 1979-07-13 | Scanner of imaging lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5612662A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5869927A (en) * | 1981-10-21 | 1983-04-26 | Nippon Sharyo Seizo Kaisha Ltd | Method and device for housing leader of pile driver |
JPS58156965A (en) * | 1982-03-11 | 1983-09-19 | Minolta Camera Co Ltd | Optical scanning device |
-
1979
- 1979-07-13 JP JP8814579A patent/JPS5612662A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5869927A (en) * | 1981-10-21 | 1983-04-26 | Nippon Sharyo Seizo Kaisha Ltd | Method and device for housing leader of pile driver |
JPH0216411B2 (en) * | 1981-10-21 | 1990-04-17 | Nippon Sharyo Seizo Kk | |
JPS58156965A (en) * | 1982-03-11 | 1983-09-19 | Minolta Camera Co Ltd | Optical scanning device |
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