Claims
- 1. An optical recording medium comprising a substrate supporting an organic film, wherein said organic flim includes a polymethine compound represented by ##STR445## wherein A, B, D and E each represent a hydrogen atom, a substituted or unsubstituted alkyl group, a cyclic alkyl group, an alkenyl group, substituted or unsubstituted aryl group, a substituted or unsubstituted styryl group, a substituted unsubstituted heterocyclic group: R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each representing a hydrogen atom, a halogen atom, or an alkyl group; m and n each represents an integer of 1, 1 or 2; and Z.sup.- represents ##STR446##
- 2. The optical recording medium of claim 1, wherein said organic film has a thickness of from 50.ANG. to 100 .mu.m.
- 3. The optical recording medium of claim 1, wherein said optical recording medium, performs recording by the formation of pits by virtue of changes in shape of the recording layer.
Priority Claims (3)
Number |
Date |
Country |
Kind |
62-40416 |
Feb 1987 |
JPX |
|
62-40417 |
Feb 1987 |
JPX |
|
62-40418 |
Feb 1987 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 159,350 filed Feb. 23, 1988, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4738909 |
Oguchi et al. |
Apr 1988 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
61162385 |
Sep 1988 |
JPX |
Non-Patent Literature Citations (2)
Entry |
CA108(4):29576b, Kanne et al., Jul. 21, 1987. |
CA106(22):186587g, Sato, Jul. 23, 1986. |
Continuations (1)
|
Number |
Date |
Country |
Parent |
159350 |
Feb 1988 |
|