Testing Curvature Radius of the Plastic Lens;
塑料透镜曲率半径的检验
The technical Know-how of the precision injection moulding of the middle-small size plastic lens is introduced.
介绍中小型塑料透镜精密注塑成型的工艺,并以两种塑料透镜的成型为例,讨论了最佳注塑工艺的选择。
The properties of plastic lens applied in 3D virtual displays are studied and a Polymethyl Methacrylate (PMMA) optical system for glasses-type virtual displays is presented.
研究了塑料透镜在3D虚拟显示头盔光学系统中的应用,设计了适用于眼镜式虚拟微显示器的全塑料(聚甲基丙烯酸甲脂-PMMA)光学系统。
A lens system used for fthe uniformation of Gangssian beam isdescribed.
提出一种用于高斯光束均匀化的透镜系统，论述这一系统实现高斯光束均匀化的基本原理，介绍系统的具体设计方法，并在具体参数下给出实际的加工曲线和光学结构。
Matching error of scintillator emission spectrum with lens system will have influence on image quality of photoelectric receiving systems in flash radiography.
转换屏的X射线激发发光光谱与透镜系统的匹配偏差会对闪光照相光电接收系统的成像质量造成影响。
The dynamic process of injection and holding for optical plastic lenses is simulated by means of CAD/CAE technology.
采用 CAD/CAE技术对光学塑料透镜注射成型的充模及保压过程进行了计算机动态模拟 ,研究了不同注射温度、压力、时间和保压温度、压力、时间对透镜面形质量的影响规
The Technology for Fabricating Aspherical Plastic Lens Die Cavity;
非球面塑料透镜钢制模具型腔的加工工艺研究
But the barrier of the extensiue production of the aspherical plastic lenses is still the problem of the accuracy in shaping.
在了解传统注射成型的基础上,从光学塑料的物理特性出发,研究了它在成型过程中的精度问题,发现了光学塑料在成型时的体积可控制,从而对高精度非球面塑料透镜的两种成型方法进行了探讨。
Explore ration of 2-step Injection Shaping Method of Aspherical Plastic Lenses;
非球面塑料透镜两步注射成型法的探索
Explore Shaping Method of High Accuracy Aspherical Optics Plastic Lenses;
高精度非球面光学塑料透镜成型法的探索
a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication.
与角膜相适合矫正视力或传递药物的薄且弯曲的玻璃或塑料透镜。
flat-top plastic bifocal
平顶塑料双焦点透镜
We buy Scrap Optical Lenses of CR39 plastic material for recycling in China. Shipment to Hong Kong. Minimum20 tons.
求购以塑料为原料的光学透镜废料，最小需求量为20吨，欢迎与我们联系！
test methods for index of refraction of transparent plastics
透明塑料折射率测定法
a very thin transparent sheet of plastic.
一种透明的塑料薄片。
use transparent film as a wrap
用透明塑料纸作包装纸
A usually transparent glass or plastic dome.
透明玻璃（塑料）圆顶
The plastic capsule was transparent all the way round.
那个塑料小盒通体透明。
fit smoked plastic lenses in spectacles
把烟色的塑料镜片安在眼镜上.
The Research of Precision Injection Molding of Optical Plastic Lens;
塑料非球面光学镜片注塑成型的工艺研究
eyeglass case, of leather, sheeting of plastics, paperboard or textile materials
眼镜盒,皮革、塑料薄膜、纸板或纺织品制
Test method for specular gloss of plastics
GB/T8807-1988塑料镜面光泽试验方法
Study of the Fracture Behavior on Engineering Plastics by SEM
用扫描电镜研究工程塑料的断裂行为
A MOLDING TECHNOLOGY FOR PLASTIC OPTICAL ASPHERICAL LENS
一种塑料光学非球面镜片的成型技术
(trademark) a light transparent weather resistant thermoplastic.
（商标名称）一种轻而透明、防风雨的热塑性塑料。
a polymer of styrene; a rigid transparent thermoplastic.
一种聚苯乙烯的聚合体，硬而透明的热塑性塑料。