这种散斑来源于光散射效应在物体表面产生的微米大小的隆起和沟痕。
The speckle is a scattering of light caused by micron-sized ridges and groves on an object’s surface.
这种散斑来源于光散射效应在物体表面产生的微米大小的隆起和沟痕。
The speckle is a scattering of light caused by micron-sized ridges and groves on an object's surface.
它们是位于太阳磁场上暂时性的比周边温度偏低的混乱的一块区域,也因此看起来就像光球——太阳表层上的暗斑。
They are transient tangles in the sun’s magnetic field that are slightly cooler than their surroundings and so appear as dark patches in the photosphere—the surface layer of the sun.
它们是位于太阳磁场上暂时性的比周边温度偏低的混乱的一块区域,也因此看起来就像光球——太阳表层上的暗斑。
They are transient tangles in the sun's magnetic field that are slightly cooler than their surroundings and so appear as dark patches in the photosphere—the surface layer of the sun.
蓝痣和蒙古斑就是这种光散射效应的例子。
The blue nevus and Mongolian spots are examples of this light dispersion effect.
对于实际光学系统,由于光的衍射和像差,使所成的点像为一弥散斑。
However, for the actual optical system, its point image become a speckle because of diffraction of light and aberration.
数字散斑测量是一种非接触、全场测量的高精度光测方法。
Digital speckle measurement is a kind of non-contact and full-field optical measurement method.
实验结果表明,即使在散斑噪声很大的情况下用该方法得到的光场依然是令人满意的。
The experimental result indicated that it is still satisfying to obtain the light field with this method even if the speckle noise is very heavy.
提出一种激光片光三维传感中降低散斑影响的方法:片光面内移动扫描法。
This paper presents an approach for the speckle noise reduction in three-dimensional surface laser light sensing: surface light scanning.
本文讨论了错位散斑效应的原理和散斑图的部分相干光信息处理的方法,并给出利用该效应进行纤维板试体无损检测的实验结果和照片。
In this paper, the principle of the fault dispersive spot effect and the method used in processing the information of the partially coherent light of the di-Spsrsive spot diagrams are explained.
提出了一种新的多通道散斑照相术,通过旋转光楔实现多通道散斑图记录。
A new mutiplex speckle photography is given which uses a rotating prism to record multiple specklegram.
相干激光雷达接收机中,信号光为平面光经衍射形成的艾里斑,本振光为基模高斯光束,在文章中对两者在探测器光敏面上混频的混频效率进行了讨论。
The mixing efficiency in coherent lidar of an Airy signal field with a Gaussian local-oscillator(LO) is discussed with the consideration of the effect of wavefront matching of both fields.
采用光纤导光,减少光学系统影响,提高了散斑图质量。
A optical fiber is used to reduce the influence of the optical system and improve the quality of speckle pattern.
将电子散斑测量离面位移的光路引入到高弹性连轴器挠性杆的横向弯曲变形测量中。
The out-plane route of ESPI was introduced for the displacement measurement of flexible lever.
讨论了动态光散射场中的散斑平均面积。
The average speckle area in dynamic light scattering field was calculated.
它利用激光散斑技术,记录了由于微小楔角引起的散斑位移量的散斑图,由此导出被测试件的微小楔角。这种方法具有光路简单、非接触、精度高等特点。
The method uses laser speckle technique to record the shift amount of speckle patterns due to micro wedge angles, and thus micro wedge cangles of the test piece are induced.
方法:主要用激光散斑法和游标法进行暗焦点检查,并在与屈光不正的关系及仪器的稳定性进行了应用研究。
Methods Infrared and vernier means were used in the examination of dark focus. The stability, relationship between dark focus and refractive error were studied.
提出了动态光散射场的散斑场模型。
Then the speckle field model was put forward for dynamic light scattering field.
所有由日光损伤和光老化引起的面部瑕疵、真皮斑、雀斑、晒斑、色素沉着等。
Facial defects, dermal patches, freckles, sunburn, pigmentation, etc. caused by sun damage and aging.
因为人物面上仿如遗传的色斑,似乎因受光而更为明亮、突出;
The light seems to be shining on the figures from the back, yet it is difficult to identify the source.
本文提出了一种测绘准光开放式谐振腔场斑的半自动系统。
A semi-automatic system of measuring the field spots in quasi-optical cavities is presented in this paper.
在保证光击穿的条件下,选择较大的激光焦斑半径,可提高光声能量转换效率。
Under the condition of optical breakdown, a high ratio of laser to sound energy conversion can be obtained with a large laser beam waist radius.
每日使用,高效的光防护,预防细纹,皱纹,年龄斑等光老化损伤。
Used daily, this advanced sun protection helps prevent future sun damage such as fine lines, wrinkles, and even age spots.
提出了两种在激光片光三维传感中降低散斑噪声、提高深度分辨率的方法。
Methods of reducing the speckle noise and improving the depth resolution in optical 3-d profilometry with laser sheet are proposed in the paper.
遮阴现象降低光伏发电系统发电效率,并且导致光伏模块产生热斑效应而缩短寿命。
Shade reduces the efficiency of photovoltaic system and shortens the lifetime of photovoltaic modules because of hot spot.
光机用途:取斑,痤疮,红血丝,嫩肤,除皱,脱毛。
E-ray machine USES: take spots, acne, redness, skin rejuvenation, wrinkles, hair removal.
在黑暗和散射光的照射下病斑都能产孢,但在黑暗条件下的产孢量明显高于在散射光条件下的产孢量。
Lesion can produce spores under either direct light or black light, but under blacklight can produce more spore than under direct light.
采用选择区域生长、量子阱混杂和非对称双波导技术制作了电吸收调制器与半导体光放大器和双波导模斑转换器的单片集成器件。
On the basis of the study of the single circular groove guide and symmetric double circular groove guide, a new structure, asymmetric double circular groove guide, has been put forward.
采用选择区域生长、量子阱混杂和非对称双波导技术制作了电吸收调制器与半导体光放大器和双波导模斑转换器的单片集成器件。
On the basis of the study of the single circular groove guide and symmetric double circular groove guide, a new structure, asymmetric double circular groove guide, has been put forward.
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