A kind of gas shield camera lens

A kind of gas shield camera lens

CN
  • CN 104,281,012 B
  • Filed: 09/18/2014
  • Issued: 08/24/2016
  • Est. Priority Date: 09/18/2014
  • Status: Active Grant
First Claim
Patent Images

1. a gas shield camera lens, it is characterised in that:

  • include the protective cover of hollow tube-shape, protective cover round tip, circleBottom center is respectively arranged with central through hole, and in protective cover, concentrically axle is provided with lens barrel, the top of lens barrel, bottom correspondence respectivelyBe arranged in protective cover round tip, rounded bottom central through hole, and lens barrel top, bottom outer wall respectively with protective cover circular topEnd, rounded bottom central through hole inner wall sealing coordinate, and described protective cover upper portion side wall is provided with and connects with the gas connected in protective coverHead, protective cover rounded bottom is provided with valve that is multiple and that connect in protective cover, is filled with gas between protective cover and lens barrel;

    DescribedBeing provided with vertical cavity, cavity and lens barrel, protective cover concentrically axle in lens barrel, cavity is set to diameter from top to bottom and subtracts successivelyThe step-like cavity in three grades, little upper, middle and lower, and middle step cavity height is the highest, is vertically disposed with in cavity of topping barFirst spacer ring of tubular, the second spacer ring, the first spacer ring inner top, bottom above are respectively arranged with eyeglass, under being positioned atSecond spacer ring inner bottom part of side is provided with eyeglass, is provided with the 3rd spacer ring of tubular in middle step cavity, top in the 3rd spacer ringPortion is provided with eyeglass, is provided with the 4th spacer ring of tubular in cavity of getting out of a predicament or an embarrassing situation, and the 4th spacer ring inner top, bottom are respectively arranged withEyeglass in eyeglass, and upper, middle and lower step cavity respectively with lens barrel, protective cover concentrically axle.

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