Night Vision Device With Hinged Barrel And Foldable Screen
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Solution Overview
Problem
Conventional night vision devices with dual barrels can cause visual limitations and are inconvenient for users to observe surroundings quickly, especially when designed for hands-free use or military operations.
Innovation Solution
A night vision device with two barrel members hinged on a base that can be adjusted to different distances, featuring an outer screen that can be easily unfolded and folded, allowing users to observe the environment through both barrels and the screen, with additional functions like photography and video recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a night vision device with a pair of barrels is used, then stereoscopic field of view and observation accuracy are improved, but visual limitations occur and it becomes inconvenient to observe surroundings quickly
Solution Approach 1:
The device is divided into two separate barrel members that can be independently adjusted and positioned. Each barrel member contains its own optical system and can be rotated to different positions, allowing the user to observe through the eyepieces for accuracy or rotate them away to use the outer screen for situational awareness.
Solution Approach 2:
The barrel members are designed with rotational joints that allow dynamic repositioning. The barrels can be rotated between an observation position (pointing forward for stereoscopic viewing) and a storage position (rotated away to clear the field of view), enabling the user to switch between accurate observation mode and situational awareness mode.
2Adaptability or versatility
If the barrel members are fixed in position, then the structure is simple, but it cannot adapt to users with different pupil distances
Solution Approach 1:
The barrel members incorporate rotational joints that enable dynamic adjustment of the distance between the eyepieces. Users can rotate the barrels to adjust the inter-eyepiece distance to match their pupil separation, providing adaptability without requiring complex mechanical adjustment mechanisms.
Solution Approach 2:
The distance between the two barrel members can be changed by rotating them to different angular positions. This parameter adjustment allows the device to accommodate users with different pupil distances while maintaining a relatively simple fixed-base structure.
3Ease of operation
If the outer screen is permanently extended, then observation convenience is improved, but the device size increases and portability is reduced
Solution Approach 1:
The outer screen is connected to the base through a rotational joint that allows it to be folded flat against the base when not in use, minimizing the device's profile for portability. When observation is needed, the screen can be rotated to an extended position for convenient viewing.
Solution Approach 2:
The display function is separated into an extensible outer screen that can be deployed only when needed. This segmented approach allows the main body to remain compact while providing full-screen observation capability when the screen is extended.
Data Source
AI summary
The present disclosure provides a night vision device that includes a base, an outer screen installed on the base and configured to display images of the outside world, and two barrel members respectively hinged on both sides of the base, the two barrel members rotated to adjust a distance therebetween, the base including a main member and a receiving member arranged on a side of the main member, a width of the main member smaller than that of the receiving member, the main member including two arc-shaped recesses for respectively receiving the two barrel members therein; the two barrel members located on the same side of the receiving member, and the outer screen hinged on the receiving member. The present disclosure can simultaneously have functions of adjusting a pupil distance and observing from the outer screen.