发明名称 |
LASER IGNITION DEVICE PROVIDED WITH TRANSMISSIVE REFLECTIVE FILM |
摘要 |
A laser ignition device capable of achieving stable ignition, preventing deterioration of a semiconductor laser element is provided, by suppressing the intensity of oscillated light leakage leaking towards semiconductor laser side from the laser resonator with a simple configuration. A laser ignition device 7 includes an excitation light source 1 emitting coherent excitation light LPMP, an optical element 2 transmitting excitation light LPMP, a laser resonator 3 oscillating oscillated light having high energy density by being irradiated with excitation light LPMP, and condensing means 6 condensing the oscillated light LPLS oscillated by the laser resonator 3. Moreover, the laser ignition device 7 is provided with a light-transmissive-reflective film 5 disposed between the excitation light source 1 and the laser resonator 3. The light-transmissive-reflective is film 5 permeating the excitation light LPMP having short wavelength and reflecting oscillated light leakage LLEAK having long wavelength. |
申请公布号 |
US2017107966(A1) |
申请公布日期 |
2017.04.20 |
申请号 |
US201515123327 |
申请日期 |
2015.03.04 |
申请人 |
DENSO CORPORATION ;INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INTITUTES OF NATURAL SCIENCES |
发明人 |
KANEHARA Kenji;SUGIURA Akimitsu;TAIRA Takunori |
分类号 |
F02P23/04;H01S3/11;H01S5/40;H01S3/16;H01S3/094;H01S3/0941 |
主分类号 |
F02P23/04 |
代理机构 |
|
代理人 |
|
主权项 |
1. (canceled) |
地址 |
Kariya-city, Aichi-pref. JP |