发明名称 |
Laser printer and light source suitable for the same |
摘要 |
A laser printer is provided printing with a high precision simply and at a high speed, and the laser printer uses a semiconductor laser which can vary the diameter of the emitted light while the light density is held constant. In the laser printer, laser rays emitted from a semiconductor laser are irradiated onto a photoconductor to vary its surface potential to produce a charge pattern particles adhere, and printing is performed by transferring the changed particles to a printing object. The semiconductor laser has a plurality of waveguide type resonators, the emitted beams of the resonators having a spatial superposition, and light emission is possible so that the emitted beams of the resonators having a spatial superposition with respect to each other among the resonators of the semiconductor laser are not substantially superimposed in time.
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申请公布号 |
US6091439(A) |
申请公布日期 |
2000.07.18 |
申请号 |
US19970966193 |
申请日期 |
1997.11.07 |
申请人 |
HITACHI, LTD.;HITACHI KOKI CO., LTD. |
发明人 |
NAKATSUKA, SHINICHI;SAITO, SUSUMU;ARIMOTO, AKIRA |
分类号 |
H01S5/042;(IPC1-7):H01S3/08 |
主分类号 |
H01S5/042 |
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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