The utility model relates to a miniature zoom beam lens, belonging to a monitoring facility, comprising a bracket, a lens barrel, an outer sleeve, an inner cylinder and a large lens. The back seat of the lens barrel is fixed with the support, and the gap is matched with the outer sleeve, and the outer edge is limited by the gear ring. The lower wall of the lens barrel is provided with a longitudinal through groove, the inner gap of the lens barrel matches the inner cylinder, and the inner cylinder is radially inserted with large lenses, and the outer wall of the lower bottom of the inner cylinder is inserted into the pin shaft, and the pin shaft is embedded in the through groove of the lens barrel. A tail barrel which is connected with the coaxial axis of the back seat of the lens barrel is passed through the bracket, and a small lens is arranged in the tail barrel and is connected with an optical fiber head with a fiber laser, and the fiber head is fixed and folded with the inner ring of the tail barrel. The lower part of the bracket is fixed with an electric motor, and the output drive gear of the motor is meshed with the gear ring of the outer sleeve. The utility model of the beam small varifocal lens, reasonable structure design, powerful, with a spot of homogenizing treatment, use day and night in May, with clear imaging, night vision distance, to achieve twenty-four hours all-weather monitoring, so as to realize the remote imaging for real.
【技术实现步骤摘要】
本技术属于监控设施,特别是涉及到一种小型变焦扩束镜头。
技术介绍
近年来,我国各行业的监控领域对夜间监控技术的要求越来越高,夜间监控及取 证已经成为困扰各安防、技防领域的首要课题。当前国内公安的蹲坑取证,部队边防海防的 夜间反侦察,重要基地的夜间布防,油田及输油管线的夜间防盗,机场的防光线干扰的夜间 监控,无人监管铁路路段的监控巡线等均将新的需求指向了夜视监控领域。但现有的监控 仪都采用了变焦镜头,但成像波段局限于可见光范围内,在暗处则不可成像或成像质量不 好,不可辩认。
技术实现思路
本技术旨在于克服现有技术的不足,提供了一种小型变焦扩束镜头。本技术的小型变焦扩束镜头,是由支架、镜筒、外套筒、内筒和大镜片构成。镜 筒的后座与支架相固定、并间隙配合了外套筒、外缘由档圈将外套筒限位。镜筒的下壁设有 纵向透槽,镜筒内间隙配合内筒,内筒径向鑲嵌大镜片,内筒的下底外壁栽入销轴,销轴嵌 入镜筒的透槽中。与镜筒的后座同轴线地连接一体的尾筒穿过支架,尾筒中设有小镜片,再 与带有光纤激光器的光纤头相连接,光纤头与尾筒的内环相固定套叠。支架的下部固定了 电机,电机的输出传动齿轮与外套筒的齿圈相啮合。作为本技术的进一步改进,所述的大镜片是在内筒中为内突的单凸透镜。作为本技术的进一步改进,在外套筒根部的齿圈的上部嵌有一个开关档片。作为本技术的进一步改进,所述的电机是用直流可逆电机代替。本技术的小型变焦扩束镜头,结构设计合理、功能强大,具有光斑勻化处理功 能,在黑夜和白昼均可使用,具有成像清晰,夜视距离远,实现二十四小时全天候监控,从而 实现真正的远距离变焦的成像。可广泛应用于重 ...
【技术保护点】
1.小型变焦扩束镜头,是由支架(1)、镜筒(2)、外套筒(3)、内筒(4)和大镜片(5)构成,其特征在于镜筒(2)的后座与支架(1)相固定、并间隙配合了外套筒(3)、外缘由档圈(6)将外套筒(3)限位;镜筒(2)的下壁设有纵向透槽(7),镜筒(2)内间隙配合内筒(4),内筒(4)径向鑲嵌大镜片(5),内筒(4)的下底外壁栽入销轴(8),销轴(8)嵌入镜筒(2)的透槽(7)中;与镜筒(2)的后座同轴线地连接一体的尾筒(9)穿过支架(1),尾筒(9)中设有小镜片(10),再与带有光纤激光器(11)的光纤头(12)相连接,光纤头(12)与尾筒(9)的内环相固定套叠;支架(1)的下部固定了电机(13),电机(13)的输出传动齿轮(14)与外套筒(3)的齿圈(15)相啮合。
【技术特征摘要】
【专利技术属性】
技术研发人员:齐小峰,邹本泉,
申请(专利权)人:大庆朗墨光电科技有限公司,
类型:实用新型
国别省市:23
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