Detachable 3D Viewing Device for Lightweight Head-Mounted Displays
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Solution Overview
Problem
Current personal 3D viewing devices integrated into glasses or goggles are bulky, heavy, and inconvenient for replacement, upgrade, or repair of 3D optical components.
Innovation Solution
A three-dimensional viewing device with a body that externally connects to a head-worn device, featuring two displays, light sources, and projection lenses, along with a digital signal processing module and a host device with user interaction interfaces, allowing for external mounting and easy upgrade or repair, using DLP microdisplays, LEDs, and OLEDs for image projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 3D viewing device is integrated into glasses or goggle, then 3D viewing function is achieved, but the glasses or goggle becomes bloated and heavy
Solution Approach 1:
The 3D viewing device is divided into separate functional modules: a lightweight head-worn device (glasses) and a detachable body unit containing the displays, light sources, and projection lenses. This segmentation allows the glasses to remain lightweight while the 3D viewing functionality is provided by the external body unit.
Solution Approach 2:
A connector serves as an intermediary between the head-worn device and the body unit, enabling the 3D viewing function to be achieved without integrating heavy components directly into the glasses. The connector facilitates the connection while keeping the glasses themselves lightweight.
2Reliability
If 3D viewing device is integrated into glasses or goggle, then 3D viewing function is achieved, but replacement, upgrade or repair of 3D optical component is inconvenient
Solution Approach 1:
The 3D optical components (displays, light sources, projection lenses) are housed in a detachable body unit that can be easily separated from the head-worn device. This segmentation enables convenient replacement, upgrade, or repair of the optical components without affecting the glasses themselves.
Solution Approach 2:
The system transitions from a static integrated design to a dynamic detachable design, allowing the body unit to be easily connected and disconnected. This dynamic configuration enables flexible maintenance and upgrades of the 3D optical components.
3Ease of repair
If body is externally connected to head-worn device, then ease of upgrade and repair is improved, but device complexity increases
Solution Approach 1:
The connector is designed with multi-functionality, serving both as a mechanical connection element and as an interface for data and power transmission. This universal design simplifies the overall connection structure while enabling easy replacement and upgrade of the body unit.
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
Provides a lightweight, convenient, and easily upgradable 3D viewing solution with improved user interaction capabilities, enhancing the overall 3D viewing experience while simplifying maintenance and repair processes.
Implementation Method 1
two sets of projection lenses disposed in the space at the two openings respectively, adapted to project the images of the two displays out of the two openings toward the two eyes of the head-worn device user
Implementation Method 2
two light sources disposed in the space at the base side, and oriented toward the two displays respectively
Data Source
AI summary
Provided is a three-dimensional (3D) viewing device, comprising a body adapted to connect to a head-worn device, having a space therein, and a base side and opposite lateral sides neighboring thereto, the body comprising two openings symmetrically formed on the opposite lateral sides respectively; two displays disposed in the space; two light sources disposed in the space at the base side, and oriented toward the two displays respectively; and two sets of projection lenses disposed in the space at the two openings respectively, adapted to project the images of the two displays out of the two openings toward the two eyes of the head-worn device user, respectively. A 3D viewing and interacting system thereof is also provided.