| 摘要 |
PURPOSE:To absorb effectively the beams of a semiconductor laser having oscillation wavelengths especially in longer side and to convert them into another energy, by adding a specified compd. to an organic coating film. CONSTITUTION:The organic coating film contains a compd. represented by general formula I shown in which R1-R5 are each H, alkyl, alkoxy, or optionally substd. aryl, and A is formula II or III. As a result, an electrophotographic photosensitive film used for an electrophotographic printer using the semiconductor laser as a light source, such a film used for an optical disc, and an IR cut fiber can be obtained. |
