发明名称 |
Method for setting quantity of light of light-emitting element array |
摘要 |
A method for setting the amount of light in an array of light-emitting thyristors, each thyristor having I-L characteristic in which a luminous efficiency is decreased in a lower current field, is provided. According to the method, the amount of light emitted from a light-emitting thyristor is set so that a predetermined exposure energy may be obtained without decreasing a luminous efficiency of a light-emitting thyristor. The density D of a current to be supplied to the light-emitting thyristor to obtain a predetermined exposure energy is selected so as to satisfy the range of 3xDth<D<100 MA/m2, wherein Dth is a threshold current density for light emission which is defined as a current density corresponding to the value of a current at a point where a tangent drawn at the value of a current corresponding to a current density of 50 MA/m2 with respect to the curve of the I-L characteristic intersects a current axis.
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申请公布号 |
US6535234(B2) |
申请公布日期 |
2003.03.18 |
申请号 |
US20010937042 |
申请日期 |
2001.09.20 |
申请人 |
NIPPON SHEET GLASS CO., LTD. |
发明人 |
OHNO SEIJI;KUSUDA YUKIHISA;OHTSUKA SHUNSUKE;KURODA YASUNAO;ARIMA TAKAHISA;SAITOU HIDEAKI |
分类号 |
B41J2/45;H01L33/08;H01L33/58;(IPC1-7):B41J2/385 |
主分类号 |
B41J2/45 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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