JPS5711333A - Slit scanning optical system with variable magnification function - Google Patents
Slit scanning optical system with variable magnification functionInfo
- Publication number
- JPS5711333A JPS5711333A JP8557780A JP8557780A JPS5711333A JP S5711333 A JPS5711333 A JP S5711333A JP 8557780 A JP8557780 A JP 8557780A JP 8557780 A JP8557780 A JP 8557780A JP S5711333 A JPS5711333 A JP S5711333A
- Authority
- JP
- Japan
- Prior art keywords
- image
- optical
- optical system
- lens
- slit scanning
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/0005—Optical objectives specially designed for the purposes specified below having F-Theta characteristic
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/522—Projection optics
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Lenses (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Mechanical Optical Scanning Systems (AREA)
Abstract
PURPOSE:To reduce the movement of an optical element and to perform speedy optical sanning by moving at least one optical element in an image formation optical system in the direction perpendicular to the optical axis and forming a slit scanning image on both a surface to be scanned and a conjugate surface. CONSTITUTION:The 1st surface 1 and the 3rd surface 3 are used in common to a lens 5 by an image magnification and a lens 4 for image reduction and the 3rd surface 3 and an image formation surface 2 are also used in common by the lens 5. When a point Q at the distance L1 from the optical axis of surface 1 is scanned by moving the lens 5 by distance DELTAh2 in the direction perpendicular to the optical axis, the condition DELTAh2<1/2.L1 is satisfied if the variable magnification ratio beta image-formed on the surface 2 is 0<beta<1. When comparing this optical system with the case that the image formation optical system formed by an optical element is moved by distance 1/2L1 to form an image equal to the original one, the movement of the optical element is reduced and the slit scanning magnification changing image is formed speedy. When plural optical elements are moved, the same result is obtained.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8557780A JPS5711333A (en) | 1980-06-24 | 1980-06-24 | Slit scanning optical system with variable magnification function |
DE19803025468 DE3025468A1 (en) | 1979-07-05 | 1980-07-04 | Compressed movement scanner for photocopier - has two sets of lenses with relative orthogonal movement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8557780A JPS5711333A (en) | 1980-06-24 | 1980-06-24 | Slit scanning optical system with variable magnification function |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5711333A true JPS5711333A (en) | 1982-01-21 |
Family
ID=13862660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8557780A Pending JPS5711333A (en) | 1979-07-05 | 1980-06-24 | Slit scanning optical system with variable magnification function |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5711333A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61251815A (en) * | 1985-04-30 | 1986-11-08 | Minolta Camera Co Ltd | Tilt and swing lens |
JPS63201623A (en) * | 1987-02-18 | 1988-08-19 | Canon Inc | Photographic lens with vibration preventing function |
JPH01167724A (en) * | 1987-12-23 | 1989-07-03 | Canon Inc | Photographic optical system for stabilizing image |
EP3118663A1 (en) * | 2015-07-15 | 2017-01-18 | Vincenc Jutersek | An optical component for an optical instrument, and methods of use for enhancing an image intensity or spatial resolution |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5039563A (en) * | 1973-07-09 | 1975-04-11 |
-
1980
- 1980-06-24 JP JP8557780A patent/JPS5711333A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5039563A (en) * | 1973-07-09 | 1975-04-11 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61251815A (en) * | 1985-04-30 | 1986-11-08 | Minolta Camera Co Ltd | Tilt and swing lens |
JPS63201623A (en) * | 1987-02-18 | 1988-08-19 | Canon Inc | Photographic lens with vibration preventing function |
JPH01167724A (en) * | 1987-12-23 | 1989-07-03 | Canon Inc | Photographic optical system for stabilizing image |
EP3118663A1 (en) * | 2015-07-15 | 2017-01-18 | Vincenc Jutersek | An optical component for an optical instrument, and methods of use for enhancing an image intensity or spatial resolution |
WO2017009246A1 (en) * | 2015-07-15 | 2017-01-19 | Vincenc Jutersek | An optical component for an optical instrument, and methods of use for enhancing an image intensity or spatial resolution |
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