查询词典 optical path

This paper mainly researches the exposal unit mechanics, analyzes the distance of scanning optical path and the driver mechanics of step motor.

作为数码复印机的原稿图像输入端，扫描成像单元及曝光单元在数码复印机中起着至关重要的作用。

Although LEDs do experience a gradual and permanent reduction in light output during their normal operating life - caused either by a reduction in the light-generating efficiency of the LED die, or a reduction of the optical path within the LED package - the Dialight street LEDs are expected to provide about 70 per cent of their original light output after 50,000 hours or 10 years, provided that they are not overdriven.

在正常操作下，LED必需要经历光输出逐渐减少的过程，而这个过程是会一直持续着的。导致光输出减少的原因可能是由于LED产生光的效率在降低，或者是由于LED压缩包内的光径在减少。不过，只要没有超负荷使用，Dialigh的LED路灯在工作50，000小时或10年后，还可以达到70%原始光输出的能力。

In this paper, the theoretical expression of addition pointing error based on an optical path is derived and the effect of the misalignment of the spheric centers on inside and outside surfaces on the pointing accuracy of a sight axis is analyzed.

本文根据光路图推导出了产生这种误差的数学表达式，分析了内外球心偏离对视轴指向精度的影响，进行了相关实验并对实验数据进行处理。

This study used the pick-up head from the commercial DVD-ROM as the basis for optical path, and drilled a 2mm hole on the focusing object lens. After combined with the design of a beams plitter, the laser beam source of the two DVD formed two in-line laser beams. One laser beam passed through the undrilled part, and focused on the surface of the object to be tested, in order to measure the displacement variance of the surface.

於三自由光学测探头的研制上，则将DVD 探头之聚焦物镜做一2mm 的穿孔，於搭配一分光镜的设计后，使个DVD 的光源形成同轴光束，将其中ㄧ光束经由聚焦物镜未穿孔部分，聚焦於待测物表面，用以测待测物表面的位移变化，另一光束则穿透过聚焦物镜穿孔部分，直接将光束投射至待测物表面，作为待测物表面之个角的变化测。

To meet the needs, a novel low-noise fiber laser with compound cavity structure is designed. The stable single-mode operation is realized by using a transient self-written fiber grating, produced by the effect of saturable absorption within a section of unpumped erbium-doped fiber, as narrow band filter for mode selecting and linewidth squeezing. Through optical path modification, the spectral signal-to-noise ratio is better than 62 dB.

激光器采用复合腔结构，以掺铒光纤作为工作物质，通过在未被抽运的掺铒光纤中形成的瞬态自写入光纤光栅的窄带滤波特性进行选模和压窄线宽，产生稳定的单频激光输出；经过光路改进，激光输出光谱信噪比优于62 dB；利用光电负反馈电路，弛豫振荡峰下降了约25 dB，低频段强度噪声也大为改善，有效地抑制了光源的强度噪声。

In the probe, tunning fork is used to modulate focal length, and reference signal is provided by reference optical path.

该测头采用振动音叉调整系统的焦点位置，用参考臂光路提供参考信号。

This method in the invention is only measuring in the one position of the optical path; therefore the method can facilitate to realize the real-time measurement of the beam divergence angle.

本发明方法只在光路中的一个位置测量即可，因此本发明方法可方便地实现光束发散角的实时测量。

We use GRIN lens as collimating or focusing lens for transmission gas cell ,and a method that using cascaded GRINLens couple to increase the optical path length is presented. Using this method ,the detection sensitivity of the gas cell has been greatly increased.

利用自聚焦透镜作为光纤准直透镜和聚焦透镜，应用于透射型气室，并提出了在透射式气室中将多对自聚焦透镜组串联用以增加吸收光程的方法，用该方法可以明显提高气室的检测灵敏度。

The optical-path adjustment method of aspheric objective using interferometer measurement is introduced in this text.

文章介绍了非球面物镜的干涉仪检测光路调整方法。

A quarter wave plate is utilized in the optical path to make the laser beam to be slightly elliptically polarized, the sensitivity is then enhanced.

该方法使用横向塞曼激光器作光源，利用检偏器作滚转角传感元件，在外差干涉光路中引入四分之一波片使光束轻微椭偏化，从而实现灵敏度的倍增。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。