acoustic fresnel field

Substituting a Fresnel-aspheric lens which has big grooves and equal thickness for an aspheric lens as a projector lens in projector system of LED automotive headlamp can implement system\'s lightweight and miniaturization,improve the system performance and satisfy the demands of more free styling.

在投射式LED汽车前照灯系统中,用大齿距等厚菲涅耳非球面透镜代替传统的非球面透镜作为投射透镜,可使系统轻量化、小型化,提高系统总体性能,满足更加自由的汽车造型要求。

Fresnel Zone and seismic wave field in the fracture-vug reservoir.;

菲涅耳带与洞缝型油气藏地震波场

Study of non-zero offset Fresnel zone;

非零炮检距菲涅耳带研究

Two dimensional common reflection surface stack based on the Fresnel zone;

二维菲涅耳带共反射面元叠加方法研究