JPS6426832A - Photograph copying device - Google Patents

Photograph copying device

Info

Publication number
JPS6426832A
JPS6426832A JP15414086A JP15414086A JPS6426832A JP S6426832 A JPS6426832 A JP S6426832A JP 15414086 A JP15414086 A JP 15414086A JP 15414086 A JP15414086 A JP 15414086A JP S6426832 A JPS6426832 A JP S6426832A
Authority
JP
Japan
Prior art keywords
white
gradation
screen
original
black
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
JP15414086A
Other languages
Japanese (ja)
Inventor
Shizuo Yahaba
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP15414086A priority Critical patent/JPS6426832A/en
Publication of JPS6426832A publication Critical patent/JPS6426832A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To copy popular positive photographs readily and inexpensively by using a screen where black and white meshes are made on one transparent sheet. CONSTITUTION:The white point 18b on the screen 18 used reflects light projected by an electrophotographic copying device, and serves as sublight, like flash exposure in photolithography. White points are formed on a copy screen in response to gradation of an original. With a shadow part, gradation is also reproduced. By using the screen possessing the black point 18a and the white point 18b, all of gradation that an original possesses is reproduced. Thus, the black and white images, and colored images of a transparent positive photograph are copied readily and inexpensively such that continuous gradation that an original possesses can be faithfully reproduced.
JP15414086A 1986-07-02 1986-07-02 Photograph copying device Pending JPS6426832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15414086A JPS6426832A (en) 1986-07-02 1986-07-02 Photograph copying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15414086A JPS6426832A (en) 1986-07-02 1986-07-02 Photograph copying device

Publications (1)

Publication Number Publication Date
JPS6426832A true JPS6426832A (en) 1989-01-30

Family

ID=15577757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15414086A Pending JPS6426832A (en) 1986-07-02 1986-07-02 Photograph copying device

Country Status (1)

Country Link
JP (1) JPS6426832A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04210393A (en) * 1990-11-30 1992-07-31 Shakai Kouzou Kenkyusho:Kk Hand talking robot

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57161873A (en) * 1981-03-31 1982-10-05 Shigeru Hara Screen for photographic copying
JPS57210335A (en) * 1981-05-30 1982-12-23 Toshiba Corp Film copying machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57161873A (en) * 1981-03-31 1982-10-05 Shigeru Hara Screen for photographic copying
JPS57210335A (en) * 1981-05-30 1982-12-23 Toshiba Corp Film copying machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04210393A (en) * 1990-11-30 1992-07-31 Shakai Kouzou Kenkyusho:Kk Hand talking robot

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