Open Binocular Near-Eye Display With Gear-Driven Pupillary Adjustment
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Solution Overview
Problem
Existing open near-eye display devices face issues such as bulky volume, complex pupillary distance adjustment structures, high manufacturing costs, and blocked field of view, limiting their application and user experience.
Innovation Solution
An open binocular near-eye display device with an adjustable pupillary distance, featuring a binocular display host connected via a forehead support and a flip connection mechanism, incorporating a distance adjustment component with a driving gear and adjustment knob, and a pupillary distance locking mechanism for precise alignment of optical frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the optical machine is wrapped by a main housing with axial translation mechanism, then the pupillary distance can be adjusted, but the volume around the glasses body becomes bulky and lightweighting becomes difficult
Solution Approach 1:
The patent divides the adjustment mechanism into separate modular components: a fixed frame component and a movable frame component, each with independent mounting positions. This segmentation eliminates the need for a bulky main housing while maintaining adjustment functionality through the relative movement of the two frame components.
Solution Approach 2:
Instead of axial translation along a single dimension, the patent implements adjustment through lateral movement of the movable frame component relative to the fixed frame component. This dimensional change allows for a more compact structure that achieves the same pupillary distance adjustment without increasing overall volume.
2Adaptability or versatility
If the optical machine is wrapped by a main housing with axial translation mechanism, then the pupillary distance can be adjusted, but the structure becomes complex and manufacturing cost increases
Solution Approach 1:
The patent simplifies the overall structure by segmenting the frame into two independent components with standardized mounting interfaces. This modular approach reduces structural complexity compared to a monolithic main housing design, making the device easier to manufacture and assemble.
Solution Approach 2:
The fixed frame component and movable frame component are designed with universal mounting structures that can accommodate different optical machine configurations. This multi-functionality reduces the need for specialized components, thereby simplifying the overall structure and reducing manufacturing complexity.
3Strength
If the optical machine is wrapped by a main housing, then the optical components are protected, but the field of view on both sides is blocked and surrounding environment cannot be perceived
Solution Approach 1:
By separating the frame into fixed and movable components with open mounting structures, the patent eliminates the enclosing main housing that blocked the field of view. The segmented design provides necessary support and protection for optical components while maintaining an open structure that allows unobstructed viewing of the surrounding environment.
4Area of stationary object
If a single-side display is used in open visual environment, then the display area is reduced, but the visual center is blocked and wearing becomes difficult
Solution Approach 1:
The patent merges the advantages of both single-side and binocular displays by implementing a binocular display host with two optical machines mounted on separate frame components. This combining approach provides sufficient display area for both eyes while the lightweight, segmented structure ensures comfort and ease of wearing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device allows unobstructed viewing of the surrounding environment while simplifying the frame structure, reducing weight and cost, and enabling convenient pupillary distance synchronization.
Implementation Method 1
the sliding component includes a rack in sliding connection with the driving gear
Data Source
AI summary
The present invention relates to an open binocular near-eye display device with an adjustable pupillary distance, including a binocular display host allowing both eyes to simultaneously view enlarged pictures. The binocular display host includes a middle frame component, a fixed bracket, a left optical machine fixing frame, and a right optical machine fixing frame. The middle frame component is provided with a fixing portion connected to the fixed bracket, and position-limiting portions are arranged on both sides of the fixing portion. The fixing portion is provided with an adjustment gap. The middle frame component is provided with a sliding component, and the fixed bracket is provided with an adjustment knob. The left optical machine fixing frame and the right optical machine fixing frame are each provided with a rack, and the two racks are both engaged with a driving gear and are located on both sides of the driving gear.