JPS5657032A - Magnification setting method of precision photographing apparatus - Google Patents
Magnification setting method of precision photographing apparatusInfo
- Publication number
- JPS5657032A JPS5657032A JP13260979A JP13260979A JPS5657032A JP S5657032 A JPS5657032 A JP S5657032A JP 13260979 A JP13260979 A JP 13260979A JP 13260979 A JP13260979 A JP 13260979A JP S5657032 A JPS5657032 A JP S5657032A
- Authority
- JP
- Japan
- Prior art keywords
- dry plate
- register marks
- original picture
- magnification
- magnification setting
- 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
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Abstract
PURPOSE: To improve the accuracy of magnification setting by so moving an original frame and a lens that the scale-down projected images of a reference dry plate of the register marks formed on a reference original picture and the register marks on the reference dry plate align.
CONSTITUTION: A reference original picture is fixed to a precision photographing apparatus. The scale-down projected images of the register marks formed on the reference original picture are formed on the same plane as the register marks 14 formed on a reference dry plate 13 on the reference dry plate loaded in the apparatus. Thereupon, a microscope 6 is moved by a feed handle 8 to move the original picture frame and lens until the right and left or all the register marks in the diametrally opposing positions of the reference original plate and the reference dry plate superpose perfectly and align. Thereby, a predetermined magnification is set. In the case of macrophotography, a light source is provided behind the dry plate and the register marks on the dry plate are projected to the reference original picture, by which the magnification setting is performed. In this way, the magnification is set highly accurately.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13260979A JPS5657032A (en) | 1979-10-15 | 1979-10-15 | Magnification setting method of precision photographing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13260979A JPS5657032A (en) | 1979-10-15 | 1979-10-15 | Magnification setting method of precision photographing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5657032A true JPS5657032A (en) | 1981-05-19 |
Family
ID=15085325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13260979A Pending JPS5657032A (en) | 1979-10-15 | 1979-10-15 | Magnification setting method of precision photographing apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5657032A (en) |
-
1979
- 1979-10-15 JP JP13260979A patent/JPS5657032A/en active Pending
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