本文提出了一种新型组合转镜式多方位扫描条码识别器光学设计原理及其光路,扫描轨迹以及必要的公式。
The principle of the design of a new kind of combined polygon scanner for bar code is proposed.
文中着重论述了光纤与探测器间的光耦合问题,并就一组合透镜耦合方案作了具体设计计算。
In the article, the optical coupling between the optical fibre and detector is stressed and the coupling scheme of a combined lens is designed and calculated concretely.
介绍一种紧凑的、能以较低输入光功率工作的光学双稳器件,由光电检测器、光纤定向耦合器和半导体激光二极管组合而成的。
A compact, low input power optical bistable device, combined with photodetector and optical fiber directional coupler and semiconductor laser diode, was presented.
该研究为所有基于SOA和失谐滤波器组合模型的全光信号处理技术提供了理论依据。
These research results become the theory foundation of all-optical signal processing technologies based on the combination of SOA and detuning filter.
该IX2120B补充IXYSICD广泛的高压栅极驱动器,低侧栅极驱动器,光隔离门极驱动器及全系列IXYS功率半导体的产品组合。
The IX2120B complements IXYS ICD's extensive portfolio of high voltage gate drivers, low side gate drivers, optically isolated gate drivers and the full range of IXYS power semiconductors.
全光线是由对射的红外线光线和接收器组合成的,共有单光和双光两个光束组成。
The whole light is composed of a pair of infrared rays and receivers, consisting of two beams of single light and double light.
所述编码器组件(1)分别接向转向开关(2)、组合变光开关(3)、译码器组件(4)和(14)、蓄电池组(13)和地。
The encoder assembly (1) is respectively connected with a change-over switch (2), a combining beam switching control (3), the decoder assemblies (4) and (14), a storage battery (13) and the ground.
针对倍频激光中存在基频光的实际情况,依据石英晶体的旋光特性,利用石英晶体和起偏棱镜的组合,设计了一种用于去除倍频激光中基频光的光学滤波器。
Based on the optical rotatory dispersion effect, an optical filter for selecting the second harmonic of a frequency-doubled laser is constructed from quartz in combination with polarizers.
针对倍频激光中存在基频光的实际情况,依据石英晶体的旋光特性,利用石英晶体和起偏棱镜的组合,设计了一种用于去除倍频激光中基频光的光学滤波器。
Based on the optical rotatory dispersion effect, an optical filter for selecting the second harmonic of a frequency-doubled laser is constructed from quartz in combination with polarizers.
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