Optical window based on double-self-focusing lens structure

A technology of self-focusing lens and optical window, which is applied in the direction of offensive equipment, blasting barrels, weapon accessories, etc., can solve the problems of ignition failure, power density drop, optical device and optical fiber damage, etc., to improve the receiving rate, reduce randomness, and improve The effect of high temperature and high chamber pressure capabilities
CN110411283AInactive Publication Date: 2019-11-05NANJING UNIV OF SCI & TECH
4 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2019-11-05
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the field of laser initiating explosive devices, and particularly relates to an optical window based on a double-self-focusing lens structure. The optical window comprises anignition laser, a detection laser, an optical switch, a photoelectric detector, a first self-focusing lens, a second self-focusing lens and a sapphire transparent window, wherein the ignition laser isconnected to the optical switch through an ignition input fiber and a detection input fiber correspondingly, the optical switch is connected with the first self-focusing lens through the ignition optical fiber, the photoelectric detector is connected with the first self-focusing lens through the detection optical fiber, the second self-focusing lens and the sapphire transparent window are sequentially placed behind the first self-focusing lens, and optical axes of the first self-focusing lens, the second self-focusing lens and the sapphire transparent window are coaxial. According to the optical window, the technical defects of an existing laser initiating explosive device optical window are overcome, the laser radiation power density is avoided, a certain proportion of detection light isguaranteed to enter the detection optical fiber, the consistency of the reflectivity of the initiating explosive devices is improved, and the capability of the chamber pressure resistance of the optical window is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of laser pyrotechnics, in particular to an optical window based on a double self-focusing lens structure. Background technique

[0002] In the laser ignition / detonation system, the laser transmits energy through the optical fiber to the surface of the ignition agent of the transducer element, thereby igniting or detonating the pyrotechnics. The laser ignition and detonation system requires detection of the continuity of the entire optical path system, so a laser pyrotechnics optical window part is required to reflect part of the incident light of the detection light to the detection fiber, and quantitatively detect the reflection from the optical window into the detection fiber through photoelectric conversion The optical power of the detected light can be used to judge the continuity of the entire optical system.

[0003] The traditional optical window of laser pyrotechnics is a circular flat glass located between t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More