Wearable Headset Light Source Offset for Face Curvature Fit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional head-mounted displays (HMDs) interfere with the face curvature of users due to their large size and volume, which is not ergonomically designed to accommodate the natural curvature of the human face, causing discomfort and inefficiency in virtual and augmented reality applications.
Innovation Solution
The electronic device incorporates a light source unit, light source synthesis unit, fly eye lens, light source condenser unit, reflection unit, polarization unit, and light projection unit, with specific lens configurations and dichroic filters to minimize size and volume, ensuring ergonomic fit and optimal light distribution without interfering with the user's face curvature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the light source and lens are arranged without considering face curvature, then the device structure is simple, but the device size and volume become large and interfere with user comfort
Solution Approach 1:
The patent positions the light source not on the optical axis but on a second optical axis parallel to and offset from the first optical axis. This dimensional relocation allows the light source to be positioned laterally, enabling a more compact arrangement that conforms to face curvature while maintaining proper optical functionality through the use of reflection units and condenser lenses.
Solution Approach 2:
The patent explicitly designs the device to accommodate the curvature of the user's face. By positioning optical components to follow the curved surface of the face rather than maintaining a flat, axis-aligned arrangement, the device volume is reduced and ergonomic fit is improved without sacrificing optical performance.
2Ease of operation
If the light source is positioned on the optical axis, then the optical path is straightforward, but the device interferes with the curvature of the user's face
Solution Approach 1:
The light source is relocated from the first optical axis to a second optical axis that is parallel to and offset from the first optical axis. This dimensional shift allows the light source to clear the user's facial curvature while maintaining proper optical alignment through the use of reflection units and condenser lenses that redirect light onto the original optical path.
Solution Approach 2:
The optical path is segmented into multiple stages: light emission from the offset light source, reflection by the reflection unit, condensation by the condenser lens, and final projection. This segmentation allows each component to be optimally positioned for both ergonomic fit and optical performance, resolving the conflict between ease of alignment and face curvature interference.
3Volume of moving object
If the device is minimized in size and volume, then ergonomic fit is improved, but the arrangement of optical components becomes more complex
Solution Approach 1:
Multiple optical functions are merged into compact components. The reflection unit and condenser lens are integrated in close proximity, and the light source is combined with the optical axis system through precise spatial relationships. This merging reduces overall device volume while the functional integration simplifies the arrangement compared to separate, distributed components.
Solution Approach 2:
By utilizing a second optical axis offset from the first optical axis, the patent creates additional spatial dimensions for component arrangement. This allows optical components to be stacked or positioned in three-dimensional space more efficiently, reducing the device's footprint and volume while maintaining proper optical functionality through controlled light redirection.
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 provides a comfortable, ergonomic design that minimizes interference with the user's face while maintaining a compact size and volume, enhancing the virtual and augmented reality experience by ensuring clear and unobstructed vision.
Implementation Method 1
a light source synthesis unit making light emitted from the light source unit travel along the second optical axis
Implementation Method 2
a fly eye lens separating the light passing through the light source synthesis unit
Implementation Method 3
a light source condenser unit condensing the light separated from the fly eye lens
Implementation Method 4
a reflection unit disposed between the light source synthesis unit and the light source condenser unit and reflecting light incident from the light source synthesis unit to the light source condenser unit
Implementation Method 5
a polarization unit polarizing the light incident from the light source condenser unit
Data Source
AI summary
Disclosed is an electronic device according to the present disclosure. In the electronic device according to the present disclosure, a light source unit is disposed to be parallel to a first optical axis formed when eyes of the user look straight ahead; The electronic device according to the present disclosure may be associated with an artificial intelligence module, a robot, an augmented reality (AR) device, a virtual reality (VR) device, a device related to a 5G service, and the like.