不过仅利用一对光束并不能得到有用的图像,还需要从大约100个不同的角度让物体光束扫描目标。
A single pair of beams does not, however, produce a useful image. To do that requires scanning the object beam through the target about a hundred different ways.
光束能导致硬币、耳环、眼镜架这样的金属物体过热而烧伤皮肤。
The beam also superheats metal objects like COINS, earrings, or spectacle frames, which can then burn skin.
光穿过这些场产生衍射,发散如喷雾状的衍射光向前方传播,因此对物体产生了一个与光束传播方向相反的推动。
The spray of light scattered forward by these fields could push the object backward, against the movement of the beam itself.
由于已经花了几个世纪研究光的推动能力,物理学家们的直觉意识到会有一种光束能够拉动物体。
A beam of light that can pull is counterintuitive to physicists, who have spent centuries studying light's ability to push.
研究人员采用一合理设计,使用均匀的光束照射微小物体从而让它们像747客机一样离开地面飞了起来。
With the right design, a uniform stream of light has pushed tiny objects in much the same way that an airplane wing hoists a 747 off the ground.
以下图片是用扫描电子显微镜,利用电子光束跟踪物体表面制作而成。由此拍摄出的黑白图像经着色后反映出虫卵的自然外观。
The images were made with a scanning electron microscope, which uses beams of electrons to trace the surfaces of objects.
下方的摄像头会捕捉光束,并反映出一幅挤压地板物体的图像。
A camera below captures the light and registers an image of whatever has pressed down on the floor.
光束将沿着纤维核左右折射,在物体的核心与覆层之间反复折射,但不越过边界。
The light would bounce along the core, reflecting from the boundary between core and cladding.
(指针密度):贝塞尔曲线光束渲染的物体个数。
Pointer Density: the number of items to render in the beam bezier curve.
激光测高仪通过物体表面反射的光束测量山脉的高度和峡谷的深度。
The laser altimeter will bounce beams of light off of the surface to measure the heights of mountains and depths of valleys.
研究了任意形状凸粗糙物体对高斯光束的相干散射特性。
Thecoherent scattering of Gaussian beam by arbitrarily shaped convex dielectric object with rough surface is investigated.
利用这种光束可以对微小的衍射物体进行反演放大。
Utilizing convergent beam of large aperture can realize inversion of circular hole diffraction and circular disk diffraction.
贝塞尔曲线光束渲染的物体个数。
它的基本思想是通过投射激光线光束到被测物体表面,在物体表面形成一条投影亮线。
It is to project a laser sheet onto the tested surface, and form a light line on the surface.
利用双光束干涉原理与浮力定律,对一台能测定物体微小质量变化的浮力天平原理与设计进行了讨论。
According to the principle of the interference of two beams and the buoyancy law, the principle and design of one buoyancy balance for measuring little mass change of a body is discussed.
第一种方案是调整被称为“光镊”的著名效应,在其中对象物体可被困在一条或两条激光束的焦点上。
One is an adaptation of a well-known effect called "optical tweezers" in which objects can be trapped in the focus of one or two laser beams.
在对这种调制干涉条纹的理论研究基础上,提出了被测物体三维位移场的调制光束全息分析法。
Based on the theoretical study of formation of the modulated fringes, the holographic analytical method of 3d displacement field of the measured object is proposed.
20世纪初期人们开始致力于探索利用光束实现物体光致旋转的方法。
In the early 20th century the people began to devote using the laser to achieve optical rotation method.
20世纪初期人们开始致力于探索利用光束实现物体光致旋转的方法。
In the early 20th century the people began to devote using the laser to achieve optical rotation method.
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