CA2009291A1 - Optical recording medium - Google Patents
Optical recording mediumInfo
- Publication number
- CA2009291A1 CA2009291A1 CA2009291A CA2009291A CA2009291A1 CA 2009291 A1 CA2009291 A1 CA 2009291A1 CA 2009291 A CA2009291 A CA 2009291A CA 2009291 A CA2009291 A CA 2009291A CA 2009291 A1 CA2009291 A1 CA 2009291A1
- Authority
- CA
- Canada
- Prior art keywords
- near infrared
- recording medium
- optical recording
- present
- infrared absorbent
- 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
- 230000003287 optical effect Effects 0.000 title abstract 3
- 230000002745 absorbent Effects 0.000 abstract 3
- 239000002250 absorbent Substances 0.000 abstract 3
- 239000000758 substrate Substances 0.000 abstract 2
- 238000000862 absorption spectrum Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910000765 intermetallic Inorganic materials 0.000 abstract 1
- 150000003585 thioureas Chemical class 0.000 abstract 1
Abstract
The present invention is related to an optical recording medium compirisng a substrate, a light-absorbing layer containing a near infrared absorbent and a heat-sensitive color-developing layer, these layers being superposed upon the substrate. The near infrared absorbent which is used in the present invention is prepared by mixng and heating a thiourea derivative and a metallic compound.
This near infrared absorbent has relatively uniform and strong absorption spectra all over the near infrared region, and therefore, on the optical recording medium of the present invention, an image having a high resolution can be directly obtained by the irradiation of the near infrared rays.
This near infrared absorbent has relatively uniform and strong absorption spectra all over the near infrared region, and therefore, on the optical recording medium of the present invention, an image having a high resolution can be directly obtained by the irradiation of the near infrared rays.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27186/1989 | 1989-02-06 | ||
JP1127186A JPH02307335A (en) | 1989-05-19 | 1989-05-19 | Charging circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2009291A1 true CA2009291A1 (en) | 1990-08-06 |
CA2009291C CA2009291C (en) | 1996-01-09 |
Family
ID=14953811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002009291A Expired - Fee Related CA2009291C (en) | 1989-02-06 | 1990-02-05 | Optical recording medium |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPH02307335A (en) |
CA (1) | CA2009291C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2996559B2 (en) * | 1992-01-29 | 2000-01-11 | 本田技研工業株式会社 | Electric vehicle charging status display system |
-
1989
- 1989-05-19 JP JP1127186A patent/JPH02307335A/en active Pending
-
1990
- 1990-02-05 CA CA002009291A patent/CA2009291C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH02307335A (en) | 1990-12-20 |
CA2009291C (en) | 1996-01-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |