JPS5657032A - Magnification setting method of precision photographing apparatus - Google Patents

Magnification setting method of precision photographing apparatus

Info

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
Application number
JP13260979A
Other languages
Japanese (ja)
Inventor
Kazuyuki Sakamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13260979A priority Critical patent/JPS5657032A/en
Publication of JPS5657032A publication Critical patent/JPS5657032A/en
Pending legal-status Critical Current

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
JP13260979A 1979-10-15 1979-10-15 Magnification setting method of precision photographing apparatus Pending JPS5657032A (en)

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)

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