JPS647771A - Photolithographic equipment - Google Patents
Photolithographic equipmentInfo
- Publication number
- JPS647771A JPS647771A JP62165231A JP16523187A JPS647771A JP S647771 A JPS647771 A JP S647771A JP 62165231 A JP62165231 A JP 62165231A JP 16523187 A JP16523187 A JP 16523187A JP S647771 A JPS647771 A JP S647771A
- Authority
- JP
- Japan
- Prior art keywords
- dot
- sample dot
- original
- sample
- density value
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Landscapes
- Image Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE:To rationalize and simplify the operation by correlating the basic density value of a sample dot on a continuous gradation image with the numerical value of the network area percent at a sample dot on a network point gradation image corresponding to said sample dot. CONSTITUTION:A detection part 1 detects transmitting light or reflecting light from the respective parts of an original 5, and converts it to a voltage signal. A color decomposing apart 2 converts respective voltage signals of R, G, B, USM from the part 1 to decomposed color signals of Y, N, C, K. A gradation adjustment part 3 so processed the signals Y, M, C, K that the density value at an arbitrary sample dot of the original 5, the density value difference at the brightest dot on the image 5, and the numerical value of the network dot area percent of the sample dot on a print image corresponding to the sample dot of the original 5 correlate with each other, and outputs the result to an output part 4. The part 4, based on an output signal from the part 3, exposes a film with a laser beam. In such a way, the process can be rationalized and simplified under any condition.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62165231A JPS647771A (en) | 1987-03-20 | 1987-07-03 | Photolithographic equipment |
EP88302097A EP0286241B1 (en) | 1987-03-11 | 1988-03-10 | Photomechanical apparatus using photoelectric scanning |
DE8888302097T DE3878282T2 (en) | 1987-03-11 | 1988-03-10 | PHOTOMECHANICAL APPARATUS USING PHOTOELECTRIC SCAN. |
US07/167,090 US4833546A (en) | 1987-03-11 | 1988-03-11 | Photomechanical apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6733087 | 1987-03-20 | ||
JP62165231A JPS647771A (en) | 1987-03-20 | 1987-07-03 | Photolithographic equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS647771A true JPS647771A (en) | 1989-01-11 |
JPH0564909B2 JPH0564909B2 (en) | 1993-09-16 |
Family
ID=13341899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62165231A Granted JPS647771A (en) | 1987-03-11 | 1987-07-03 | Photolithographic equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS647771A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5418303A (en) * | 1977-07-07 | 1979-02-10 | Xerox Corp | Method of reproducing halfftone and its device |
JPS57155542A (en) * | 1981-03-23 | 1982-09-25 | Dainippon Printing Co Ltd | Formation of halftone dot for printing |
JPS59161979A (en) * | 1983-03-06 | 1984-09-12 | Canon Inc | Picture processor |
-
1987
- 1987-07-03 JP JP62165231A patent/JPS647771A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5418303A (en) * | 1977-07-07 | 1979-02-10 | Xerox Corp | Method of reproducing halfftone and its device |
JPS57155542A (en) * | 1981-03-23 | 1982-09-25 | Dainippon Printing Co Ltd | Formation of halftone dot for printing |
JPS59161979A (en) * | 1983-03-06 | 1984-09-12 | Canon Inc | Picture processor |
Also Published As
Publication number | Publication date |
---|---|
JPH0564909B2 (en) | 1993-09-16 |
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