JPS622999B2 - - Google Patents
Info
- Publication number
- JPS622999B2 JPS622999B2 JP11048778A JP11048778A JPS622999B2 JP S622999 B2 JPS622999 B2 JP S622999B2 JP 11048778 A JP11048778 A JP 11048778A JP 11048778 A JP11048778 A JP 11048778A JP S622999 B2 JPS622999 B2 JP S622999B2
- Authority
- JP
- Japan
- Prior art keywords
- visible
- wavelength range
- spectral characteristics
- reflection spectral
- color
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 44
- 230000003595 spectral effect Effects 0.000 claims description 26
- 238000004040 coloring Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 235000010724 Wisteria floribunda Nutrition 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000007644 letterpress printing Methods 0.000 description 1
- YBXNDQIEEVILNJ-RCCQNZRSSA-N mcl-123 Chemical compound C([C@H]1[C@H]2CC=3C4=CC=C(C=3)O)CCCC41CCN2CCC(=O)C1=CC=CO1 YBXNDQIEEVILNJ-RCCQNZRSSA-N 0.000 description 1
- YRWTXLOIJMVJMG-PAMZHZACSA-N mcl-125 Chemical compound C([C@H]12)CCCC31C1=CC=C(O)C=C1C[C@H]2N(CCC#N)CC3 YRWTXLOIJMVJMG-PAMZHZACSA-N 0.000 description 1
- HEIQNYAVPBPIJD-DKZVUGQWSA-N mcl-183 Chemical compound C([C@@]12CCCC[C@H]2[C@H]2CC3=C1C=C1N=C(SC1=C3)N)CN2CC1CCC1 HEIQNYAVPBPIJD-DKZVUGQWSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/04—Preventing copies being made of an original
- G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Printing Methods (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11048778A JPS5536873A (en) | 1978-09-08 | 1978-09-08 | Copy prevention method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11048778A JPS5536873A (en) | 1978-09-08 | 1978-09-08 | Copy prevention method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5536873A JPS5536873A (en) | 1980-03-14 |
| JPS622999B2 true JPS622999B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-01-22 |
Family
ID=14536974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11048778A Granted JPS5536873A (en) | 1978-09-08 | 1978-09-08 | Copy prevention method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5536873A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63243687A (ja) * | 1987-01-26 | 1988-10-11 | 新日本製鐵株式会社 | スクラツプの予熱方法 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58178324A (ja) * | 1982-04-13 | 1983-10-19 | Canon Inc | ゲスト・ホスト型液晶表示装置 |
| JPS58184967A (ja) * | 1982-04-23 | 1983-10-28 | Ricoh Co Ltd | 機密文書複製防止方法 |
| JP3242971B2 (ja) * | 1992-02-27 | 2001-12-25 | キヤノン株式会社 | 画像処理装置およびその方法 |
| US5354723A (en) * | 1992-04-01 | 1994-10-11 | Nocopi Technologies, Inc. | Method for protecting against duplication with a color copier |
| US6421145B1 (en) | 1992-09-28 | 2002-07-16 | Canon Kabushiki Kaisha | Image processing apparatus and method using image information and additional information or an additional pattern added thereto or superposed thereon |
| JPH06152948A (ja) * | 1992-10-31 | 1994-05-31 | Minolta Camera Co Ltd | 画像処理装置 |
| JP3566334B2 (ja) * | 1994-03-25 | 2004-09-15 | キヤノン株式会社 | 画像処理装置およびその方法 |
| JP4235968B2 (ja) * | 2000-12-26 | 2009-03-11 | 独立行政法人 国立印刷局 | 真偽判別印刷物及び真偽判別方法 |
-
1978
- 1978-09-08 JP JP11048778A patent/JPS5536873A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63243687A (ja) * | 1987-01-26 | 1988-10-11 | 新日本製鐵株式会社 | スクラツプの予熱方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5536873A (en) | 1980-03-14 |
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