CO2 lasers is conducted to cutting die - board with the aim of discussing the relationship between cutting depth and parameters such as laser power, cutting speed and focal position.
采用CO2激光切割模切板，研究激光功率、切割速度、焦点位置等参数和切割深度之间的相互关系，研究如何确定最大切割速度和优化切割速度。
The refractive index was obtained through measuring the focal position of a capillary filled with the liquid by a reading microscope, and doing a calculation with an analytic formula.
该方法基于共轴球面光学系统的成像原理，通过读数显微镜对吸入待测液体后毛细管的焦点位置进行单一参数的测量，进而计算出待测液体的折射率。
Bright colors can add vibrancy, energy and interest - however in the wrong position they can also distract viewers of an image away from focal points.
明亮的色彩可以增添活力和兴趣点，然而对象的拙劣安置会分散观者在较低的注意力。
The centroid position of the focal spot directly depending on intensity distribution and phase slope distribution of near field is derived and its physical meaning is described.
进一步推导了焦斑质心位置对光束近场强度分布和相位斜率分布的依赖关系式，并对该式清晰的物理意义进行了阐述。
The basic factors affecting collimating characteristic are off-axis magnitude, effective aperture and emission position on the focal plane of off-axis parabolic mirror.
影响离轴抛物镜准直特性的主要因素有离轴量，有效孔径和焦面出射点的位置。
The effects on kerf width and quality made by laser facula diameter, focal point position, cutting speed, laser power and other technological parameters were studied.
研究了激光光斑直径及离焦量、切割速度、激光功率等工艺参数对齿轮切缝宽度及加工质量的影响。
A discussion is given of the method of determining the position of the focal point when the measured lens is with primary astigmatism. The measuring results are also included.
被测物镜有初级象散时确定焦点位置的方法，并给出了测量结果。
The course covers fundamental concepts that apply to any camera, such as focal length and camera position, and shows how to evaluate and shop for DSLR lenses.
本教程涵盖了适用于任何相机的基本概念，比如镜头的焦距和摄影机的位置。
In this article a method is proposed for determining the focal length, distortion coefficient and optical central position of the SBG camera.
本文给出了测定sBG照相机的焦距畸变系数和光心位置的一种方法。
The mathematics principles were clarified, the position of matrix CCD on the focal plane and the method of getting input image were presented.
阐述了该方法的数学原理，面阵CCD的安装位置以及输入图像序列的获取方法。
The position of the image and the amplitude variation in the optical field are associated with the focus and the distance from the object to the front focal plane of the lens system.
象的空间位置和光场振幅的变化与透镜系统的焦距以及物体距焦平面的位置有关。
A new technique for measuring the accurate position of the focal plane of an optical system with position sensitive detector (PSD) is presented.
本文介绍一种新的焦面检测方法，以位置敏感探测器P SD作为检焦器件对光学系统的实际焦面进行检测。
Strengthen and improve the focal point that the administrative ability to lead becomes the administrative leading position.
加强和改进行政领导能力就成为行政领导工作的重点。
Then, image surface position was kept steady during a zooming process by controlling the spherical aberration of front fixed group and the focal length of back fixed group.
之后，通过合理控制前固定组球差及后固定组焦距，使变焦过程中的像面保持稳定。
Said proximity corresponds to a distance (relative position) between the target object (2) and the reference object (6, 8) wherein the reference object is located substantially at the focal plane.
所述接近程度对应于目标物体(2)与参考物体(6、8)之间的距离(相对位置)，其中，参考物体基本位于焦平面上。
The radius and position of waist spot of CO2 laser beam focused by a single Ge lens were measured experimentally, and the focal length of the Ge lens was determined. The result is in agreement w...
实验测量了经单一锗透镜聚焦后的CO_2激光束的腰斑半径和位置，同时确定了聚焦锗透镜的焦距，其结果与实际情况一致。
The radius and position of waist spot of CO2 laser beam focused by a single Ge lens were measured experimentally, and the focal length of the Ge lens was determined. The result is in agreement w...
实验测量了经单一锗透镜聚焦后的CO_2激光束的腰斑半径和位置，同时确定了聚焦锗透镜的焦距，其结果与实际情况一致。
应用推荐