JPS6426832A - Photograph copying device - Google Patents
Photograph copying deviceInfo
- 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
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.
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)
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)
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 |
-
1986
- 1986-07-02 JP JP15414086A patent/JPS6426832A/en active Pending
Patent Citations (2)
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)
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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