CN203038418U - 一种激光烟雾报警器的光学系统 - Google Patents

一种激光烟雾报警器的光学系统 Download PDF

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CN203038418U
CN203038418U CN 201220647473 CN201220647473U CN203038418U CN 203038418 U CN203038418 U CN 203038418U CN 201220647473 CN201220647473 CN 201220647473 CN 201220647473 U CN201220647473 U CN 201220647473U CN 203038418 U CN203038418 U CN 203038418U
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laser
optical system
utility
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smoke
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张�浩
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Xi'an Ship Equipment Co Ltd Of Bo Kang China And Sweden
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Xi'an Ship Equipment Co Ltd Of Bo Kang China And Sweden
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Abstract

一种激光烟雾报警器的光学系统,包括激光二极管、烟雾粒子和光敏三极管,所述的激光二极管发出的光经烟雾粒子散射,经激光干涉滤光膜过滤后照射到光敏三极管上;本实用新型采用激光二极管做光源,具有发光强,能量大,单色性好,方向性好,灵敏度高,使用寿命长等优点,可以实现对火灾的超早期报警,同时这种激光烟雾报警器的保护面积较传统的光电感烟探测器也大大增加。

Description

一种激光烟雾报警器的光学系统
技术领域
本实用新型涉及报警器技术领域,尤其是涉及到一种激光烟雾报警器的光学系统。
背景技术
目前在火灾报警领域中,主要是用的是光电感烟探测器。这种探测器主要用LED发光二级管作为光源,由于LED发光弱,能量小,激发烟雾粒子的散射光小,因而对烟雾的敏感度不高,表现出探测器灵敏度不高,容易漏报;并且传统的光电感烟探测器对感烟暗室要求高,烟雾迷宫不利于烟雾在暗室扩散,因而保护面积小。
实用新型内容
针对现有技术存在的问题,本实用新型提供了一种发光强、能量大、单色性好、使用寿命长和灵敏度高的激光烟雾报警器的光学系统。
为实现上述目的,本实用新型一种激光烟雾报警器的光学系统,包括激光二极管、烟雾粒子和光敏三极管,所述的激光二极管发出的光经烟雾粒子散射,经激光干涉滤光膜过滤后照射到光敏三极管上。
本实用新型采用激光二极管做光源,具有发光强,能量大,单色性好,方向性好,灵敏度高,使用寿命长等优点,可以实现对火灾的超早期报警,同时这种激光烟雾报警器的保护面积较传统的光电感烟探测器也大大增加。
附图说明
附图为本实用新型的结构示意图。
具体实施方式
下面结合附图描述本实用新型的具体实施方式。
如附图所示,本实用新型一种激光烟雾报警器的光学系统,包括激光二极管1、烟雾粒子2和光敏三极管3,所述的激光二极管1发出的光经烟雾粒子2散射,经激光干涉滤光膜过滤后照射到光敏三极管3上。
所述的光敏三极管3的表面镀有激光干涉滤光膜。
不脱离本实用新型的构思和范围可以做出许多其他改变和改型。应当理解,本实用新型不限于特定的实施方式,本实用新型的范围由所附权利要求限定。

Claims (2)

1.一种激光烟雾报警器的光学系统,其特征在于,该系统包括激光二极管(1)、烟雾粒子(2)和光敏三极管(3)。
2.如权利要求1所述的一种激光烟雾报警器的光学系统,其特征在于,所述的光敏三极管(3)的表面镀有激光干涉滤光膜。
CN 201220647473 2012-11-29 2012-11-29 一种激光烟雾报警器的光学系统 Expired - Fee Related CN203038418U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103903383A (zh) * 2014-04-23 2014-07-02 中国科学技术大学 一种高灵敏度火灾烟雾报警器的光学接收组件

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103903383A (zh) * 2014-04-23 2014-07-02 中国科学技术大学 一种高灵敏度火灾烟雾报警器的光学接收组件
CN103903383B (zh) * 2014-04-23 2016-06-08 中国科学技术大学 一种高灵敏度火灾烟雾报警器的光学接收组件

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