查询词典 Lens

Cynosure was the first with the CAP technology and micro lens array and I believe that is best approach to fractionalize resurfacing.

赛诺秀激光公司是首家使用CAP聚焦技术和微透镜阵列的公司，而我相信这是点阵的最佳方法。

Louis Daguerre in France made the first practical version of the silver camera, which is composed of two wooden boxes, insert a wooden box to another box in focus, shutter used as a lens cap, to control for more than 30 minutes of exposure time, can be taken a clear image.

1839年，法国的达盖尔制成了第一台实用的银版照相机，它是由两个木箱组成，把一个木箱插入另一个木箱中进行调焦，用镜头盖作为快门，来控制长达三十分钟的曝光时间，能拍摄出清晰的图像。

Objective To investigate the clinical features, causes of blindness and diagnosis of Vogt Koyanagi Harada syndrome Methods The data of 157 patients with VKH syndrome were reviewed and analyzed Patients were carefully examined with slit lamp, ophthalmoscope, three mirror lens, fundus fluorescein angiography, indocyanine green angiography and HLA typing Results Headache was noted in 73 5% of these patients Simultaneous involvement of both eyes occurred in 80 8% of these patients Chroiditis,papilledema and edema of the retina adjacent to the optic nerve were noted in 100% of these patients in the posterior uveitis stage, whereas recurrent granulomatous anterior uveitis (98 4%),"sunset glow" fundus (95 8%) and Dalen Fuchs nodules (71 2%) were the common ocular findings in the recurrent anterior uveitis stage The common causes of blindness were papillitis, exudative retinal detachment and complicated cataract in the posterior uveitis stage, anterior uveal involvement stage and its recurrent stage Poliosis (36 3%) and alopecia (35 0%) were the most common extraocular findings Early irregular patches of fluorescence, followed by localized hyperfluorescent spots were the typical findings of FFA Dilation of choroidal vessels and leakage of ICG from the choroidal vessels were the common ICGA findings The prevalence of HLA DR4 and HLA DRw53 in patients (54 9% and 71 8% respectively) was significantly higher than that in controls (14 7% and 38 2% respectively) Conclusions VKH syndrome is characterized by chroiditis, papillitis or neuroretinitis in the posterior uveitis stage, followed by a generalized uveitis with a typical recurrent granulomatous anterior uveitis Extraocular findings and relevant examinations including FFA, ICGA and HLA typing are helpful to the diagnosis of VKH syndrome

目的探讨Vogt-Koyanagi-Harada综合征患者的临床特征、盲目原因及诊断等有关问题。方法对在1996年1月至2000年12月间就诊资料完整的157例VKH综合征患者进行回顾性分析，并对裂隙灯、眼底镜、三面镜、荧光素眼底血管造影(fundus fluorescein angiography，FFA)、吲哚青绿血管造影(indocyanine green angiography，ICGA)及人类白细胞抗原分型等检查结果进行分析。结果 VKH综合征最常见的前驱症状为头痛(102例，73.5%)，双眼同时患病118例(80.8%)；后葡萄膜炎期眼部主要表现为脉络膜炎、视乳头及附近视网膜水肿(100.0%)；前葡萄膜炎反复发作期眼部表现为复发性肉芽肿性前葡萄膜炎(128例，98.4%)、晚霞状眼底改变(95.8%)及Dalen-Fuchs结节(71.2%)；后葡萄膜炎期、前葡萄膜受累期及前葡萄膜炎反复发作期导致盲目的主要原因分别为视乳头炎、视网膜脱离及并发性白内障；毛发变白(36.3%)及脱发(35.0%)是最常见的眼外表现；炎症活动期FFA典型表现为斑驳状高荧光，ICGA发现脉络膜血管扩张、通透性增高等改变；VKH综合征患者HLA-DR4及HLA-DRw53的阳性率(54.9%及71.8%)显著高于正常对照组(14.7%及38.2%)。结论 VKH综合征患者在后葡萄膜炎期眼部典型表现为双侧脉络膜炎、视乳头炎或神经视网膜炎，随后出现以反复发作的肉芽肿性前葡萄膜炎为特征的全葡萄膜炎。眼外症状及相关的辅助检查包括FFA、ICGA 及HLA分型等有助于VKH综合征的诊断。

Casio's GREEN SLIM models come with a wide-angle 2X zoom lens that provides the greatest magnification of any data projector.

卡西欧的绿色超薄造型拿出一个广角2倍变焦镜头，可提供任何数据投影机的最大放大倍率。

The relative space relationship of the datum line and mask is represented by the beam from GRIN lens .

利用自聚焦准直镜的出射光束反映基准线与模板的相对空间关系。

If you prefer to be proactive and select the lens position yourself, you can deactivate the auto-detect feature.

如果你喜欢采取主动，并选择自己的镜头位置，您可以停用自动检测功能。

The accuracy of this method and some influencing factors such as image dimension, shooting angle, defocus and lens distortion were analyzed and the scope of application was studied.

对该方法的精度和一些影响位移测量的因素如图像大小，拍摄角度，离焦，镜头畸变等进行了分析，探讨了方法的适用范围。

By using this device, we can ensure the symmetry degree of the square lens parts quickly and accurately.

使用该装置能够精确、快捷地保证方形透镜零件的对称度。

Methods: The amplitudes and the delitescence of OPs of flash electroretinogram in 75 type 2 diabetic patients with cataract were measured before cataract extraction and implantation of artificial lens, then postoperative ocular fudus and vision were examined, the relationship between them were analysed, and all were compared to the group of normal control.

选择75例2型糖尿病白内障患者，在白内障囊外摘除人工晶体植入术前行闪光视网膜电图振荡电位总波振幅及其子波的波幅和潜伏期测定，术后行眼底检查、矫正视力测定，比较患者术前OPs各子波振幅、潜伏期、OPs总波振幅与术后眼底所见、视力恢复之间的关系，并与对照组比较。

This paper describes the paraxial analysis of the demultiplexer based on GRIN rod lens and diffractiongrating for the single mode system.

对渐变折射率棒透镜和衍射光栅构成的单模光纤分波器的近轴分析，得到了分波方程。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。