JPS572017A - Reflection type equal magnification image forming element - Google Patents
Reflection type equal magnification image forming elementInfo
- Publication number
- JPS572017A JPS572017A JP7630480A JP7630480A JPS572017A JP S572017 A JPS572017 A JP S572017A JP 7630480 A JP7630480 A JP 7630480A JP 7630480 A JP7630480 A JP 7630480A JP S572017 A JPS572017 A JP S572017A
- Authority
- JP
- Japan
- Prior art keywords
- image forming
- forming element
- array
- radius
- convex
- 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
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
- G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
- G02B17/086—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors wherein the system is made of a single block of optical material, e.g. solid catadioptric systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/002—Arrays of reflective systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/008—Systems specially adapted to form image relays or chained systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
PURPOSE:To make a device small-sized, by using an image forming element having two symmetrical partial spherical surfaces which are equal in the radius of curvature, convex in the front and adjacent in the vertical direction, on the front surface, and having one partial cylindrical reflection surface which has a center axis in the vertical direction and is convex in the rear, on the rear surface, relating to an image forming element to be used for an exposure optical system of a copying machine. CONSTITUTION:An image forming element 11 is a transparent body, and is formed in the shape of a rectangular parallelepiped having the front surface consisting of two spherical surfaces 12, 13 which are adjacent and equal in the radius, and having the rear surface consisting of a right cylindrical reflection surface 14. The reflection surface is manufactured by means of Al vapor deposition, etc., and an upper surface 15, a lower surface 16 and both sides 17, 18, of the image forming element is coated in black so that light absorption is elevated. When an image formation element array 19 which has been prepared in this way is used for an exposure optical system of a direct type copying machine, the image forming element array 19 is placed horizontally under an original table 22 on which an original 21 is put, and in its front is placed a mirror 23 having a shape which has made two reflection surfaces meet at right angles, so that its right-angles apex is directed toward the center part of the array 19.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7630480A JPS572017A (en) | 1980-06-06 | 1980-06-06 | Reflection type equal magnification image forming element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7630480A JPS572017A (en) | 1980-06-06 | 1980-06-06 | Reflection type equal magnification image forming element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS572017A true JPS572017A (en) | 1982-01-07 |
Family
ID=13601623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7630480A Pending JPS572017A (en) | 1980-06-06 | 1980-06-06 | Reflection type equal magnification image forming element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS572017A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014206756A (en) * | 2005-06-02 | 2014-10-30 | カール・ツァイス・エスエムティー・ゲーエムベーハー | Microlithography projection objective |
-
1980
- 1980-06-06 JP JP7630480A patent/JPS572017A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014206756A (en) * | 2005-06-02 | 2014-10-30 | カール・ツァイス・エスエムティー・ゲーエムベーハー | Microlithography projection objective |
US10281824B2 (en) | 2005-06-02 | 2019-05-07 | Carl Zeiss Smt Gmbh | Microlithography projection objective |
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