Sight sight day and night universal open and close eye mask

Abstract

The invention discloses a day-and-night universal eye opening-and-closing type patch for a start viewing instrument. The day-and-night universal eye opening-and-closing type patch comprises a main connecting component; the left end of the outer wall of the main connecting component is provided with an elastic rubber ring in a clamping manner; the left end of the elastic rubber ring is provided with an auxiliary connecting component in a clamping manner; the outer wall of the auxiliary connecting component is sleeved with a pressing ring; the auxiliary connecting component is fixed to the elastic rubber ring in a pressed manner through the pressing ring; the right end of the outer wall of the main connecting component is provided with a limiting slide groove; the limiting slide groove is sleeved with a limiting ring; the inner wall and the outer wall of the limiting ring are symmetrically provided with a plurality of protruding blocks; fixing holes are formed at the central portions of the protruding blocks; the outer wall of the limiting ring is provided with a patch in a clamping manner; the outer wall of the patch is sleeved with a fixing pressing ring; screw holes are formed in the wall of the fixing pressing ring; and the patch is fixedly connected with the limiting ring through screws in the screw holes in the wall of the fixing pressing ring, wherein the limiting ring sleeves the limiting slide groove. The day-and-night universal eye opening-and-closing type patch for the start viewing instrument has the advantages of high practicability and convenience in opening and closing, and can be normally opened.

Description

technical field [0001] The invention belongs to the technical field of optical goggles, and in particular relates to a day and night opening and closing goggles for sight and sight devices. Background technique [0002] On observation instruments and gun sights, in order to ensure that the exit pupil of the optical system coincides with the observer's pupil, block the interference of external light, and protect the observer's eyes from shock or shock, it is often placed between the observation eyepiece and the observer's eyes. Set up a soft eye mask. For night sighting instruments (low-light night vision devices, infrared sights, etc.), in order to hide the observer, a multi-valve opening and closing curtain structure is adopted. It is closed and cannot be directly observed and aimed, which brings inconvenience to daytime use. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art, and provide a day and nig...

AI Technical Summary

Problems solved by technology

For night sighting instruments (low-light night vision devices, infrared sights, etc.), in order to hide the observer, a multi-valve opening and closing curtain structure is adopted. Closed, unable to directly observe and aim, which brings inconvenience to daytime use

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