查询词典 optical lens

As substitute for fluorite lens, a double-layer DOE is used in a long focal-length apochromatic objective lens. The modulation transfer function of this hybrid optical system is suggested for evaluating diffraction efficiency of the multilayer DOE. The results show the diffraction efficiency has a wide and symmetrical distribution in the whole waveband.

利用双层衍射光学元件替代萤石透镜校正混合光学系统的二级光谱，设计并制作了一套长焦距物镜，并利用系统调制传递函数评价了多层衍射光学元件衍射效率，测试结果表明衍射效率在整个设计波段内以较高的数值平均分布。

Using these molds, nano-dot-array with 200nm diameter, binary optical micro-lens array, refractive micro-lens array, cross micro-fluidic channel and cap for glucose test strips are fabricated by thermal nanoimprint process.

此外，针对纳米压印光刻在制备三维微结构方面的优势，采用热压印方法制备了二元光学微透镜阵列，折射微透镜阵列，微流体通道、血糖检测芯片封盖等。

The special optical system including a main lens, a spherical -cylindrical lens and an inverting prism was designed.

通过设计一个带有主透镜、球面镜-柱面镜组合以及转像棱镜的特殊光学系统。

In order to fabricating high precise aspherical plastic lens,especially optical disc lens,we should adopt injection compression forming technology to delimitate deformation,in addition compensating m...

为了制作以光盘物镜为代表的高精度非球面塑料透镜，就应采用注射压缩工艺抑制变形的成形技术，辅之以考虑变形而补偿模具的成形技术。

Three-dimensional optical data storage is achieved in PMMA and fused silica by combining 800nm, 150fs laser pulses with NA=0.55 objective lens and solid immersion lens.

其中，在石英介质内部存储密度可达1.1×10~(12)bits/cm~3，该结果为目前所报道在透明介质内所获得的最高存储密度。

The patients underwent micro-trauma technique suture,optical iridectomy,extraction of anterior segment foreign bodies,nepheloid lens removal,and artificial lens implantation.

患者于局麻下进行急诊手术，分别行伤口显微缝合、虹膜复位瞳孔成形术、眼前段异物取出、浑浊晶状体摘出及人工晶状体植入术。

The simulation result shows the collection efficiency of TIR lens model is 67% when the angle of light is confined within 15°. And the uniformity on observation screen is improved in some degree. The optimal design of TIR lens further provides the development space of LED micro-projection display system.4 On the base of the theory research and the model simulation, four projection display systems which have LCOS as micro-display panel and which combine different optical devise for UHP and LED light source respectively are proposed in this dissertation. And the quality of projection display system is evaluated by thesimulation outcome.

模拟结果表明，优化后的TIR透镜可实现将LED大角度扩展光束中67％的光能压缩到15°范围以内，并使目标屏的照明均匀性得到一定的改善，这为LED光源微投影显示系统设计提供了新的发展空间。4在以上理论研究和模拟分析的基础上，将优化和改造得到的照明光学元件应用到微投影显示的照明系统设计中，分别采用UHP和LED光源，设计了四套单片式LCOS微投影显示系统模型，通过光线追迹模拟结果，对系统性能进行了评价分析和对比。

Chapter 2: Expatiate on the basic theory of the GRIN micro-sphere-lens, especially on the classical model—MAXWELL fisheye lens, which demonstrates their excellent optical properties.Chapter 3: Simply introduced the concept of retro-reflection, retro-reflection materials, the fabrication of traditional glass sphere and the possibility of the application of GRIN polymer micro-sphere on retro-reflection.

第三章：介绍了回归反射的概念、回归反射材料的现状；研究了用麦克斯韦鱼眼微球制作回归反射材料的可能，并与传统的均匀折射率玻璃微球回归反射材料的性能作了比较，得出将麦克斯韦鱼眼微球用作回归反射材料不仅可以大幅度降低原先对材料折射率的过高要求，还可明显提高回归反射的效率的结论。

The Fresnel lens in the optical receptor spotlights the headlamp beams to form their image at the 1-meter distance between the optical receptor and headlamps. CMOS camera as an image sensor, takes the photos of their images, which are captured by VG-M201, The application of some digital image processing techniques to these images, such as edge-picking up、 least-square fitting-curve algorithm, is to calculate the offset position/angle of optical axis of the high beams and the nodical offset of the unsymmetrical facular light and shade cut-off line of the low beams.

系统的图像采集工作是利用受光箱中的菲涅耳透镜在1米的测量距离上聚合前照灯灯光，由CMOS摄像头作为图像传感器件，照入灯光远光光斑和非对称近光图像，由嵌入式处理器对捕获的图像运用边缘提取、最小二乘法拟合曲线等数字图像处理技术计算出远光主光轴偏移角度以及非对称近光光斑明暗截止线拐点的偏移，实现了前照灯近光非对称光斑的自动测量。

Tempotec Optics Co., Ltd is a professional manufacturer of optical components. We can provide many kinds of optical components such as optical window, mirror, waveplate, filter, beamsplitter, prism, lens, etc.

福州惠宝光学有限公司公司位於福州市洪山科技园，专业生产高品质的精密光学元件，包括窗片、滤波片、反射镜、波片、分光片、棱镜、透镜等。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。