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回束光导摄象管(RBV)是近期发展起来的一种具有特殊性能的摄象管。41/2吋 RBV 管的突出特性包括高的孔径响应。高的信号增益,宽的动态范围和大容量的靶面。管子的电学设计参数与其他直读型和回束读出型的成象器件比较,指出了 RBV 管是一个本质上性能要高得多的器件。为了提供更高的灵敏度,正在发展一种带纤维光学耦合象增强器的回束管.RBV 管的运用包括图象传感和静电贮存。已证明总的分辨率可达100对线/mm(每图象高10000电视行).当100对线/mm时,RBV 管的性能可赶上或超过高分辨率胶片的性能.特别是在低对比度的情况下.对稳态光学曝光,读出可以连续进行,或者对于快门曝光或电学记录组成的断续输入,读出可以接近实时完成。对不连续输入,信息可以用慢速扫描单帧读出,或者为了在电视监示器上显示,信息可以用快速多帧读出.在多帧读出方式中,可以得到长达约一分钟的连续的高质量显示。读出传递函数(γ)可以通过电子学来控制。全部读出方式皆允许通过光栅控制和可变焦距进行电子放大。RBV 管好的性能和高的灵活性应能广泛地用在侦察系统,光学和电学贮存及扫描变换.数据取回和发送以及信号处理上。
Backlighting the photoconductive tube (RBV) is a recent development of a special performance of the tube. Outstanding features of 41/2 "RBV tubes include high aperture response. High signal gain, wide dynamic range and high-capacity target surface. The tube’s electrical design parameters compare with other direct-read and back-beam readout imaging devices and point out that the RBV tube is a device with essentially higher performance. In order to provide greater sensitivity, a beam-return tube with fiber optic coupled image enhancers is under development. The use of RBV tubes includes image sensing and electrostatic storage. The total resolution of up to 100 pairs of lines / mm (10,000 lines per image) has been demonstrated. The performance of RBV tubes can match or exceed the performance of high resolution films at 100 lines / mm, especially at In the case of low contrast, readout can be done continuously for steady-state optical exposures, or intermittently for shutter exposures or electrical recordings, and readout can be done in near real-time. For discontinuous input, the information can be read in slow-scan single frames, or for fast multi-frame readout for display on a television monitor. In multi-frame readout, up to about a minute can be obtained Continuous high quality display. The read transfer function (γ) can be electronically controlled. All readout allows electronic amplification with raster control and variable focus. RBV tube performance and high flexibility should be widely used in reconnaissance systems, optical and electrical storage and scanning transformations, data retrieval and transmission, and signal processing.