Multi-exit pupil reflector for AR VR displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current electronic devices for Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR) struggle to implement multiple exit pupils effectively, limiting user experience and immersion due to design complexities.
Innovation Solution
The electronic device incorporates an optical system with a light source and a reflector that is bent at different angles to direct light to specific locations on a display, utilizing hologram recording to selectively reflect light based on incident angles, allowing for multiple exit pupils through a simple design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional optical system is used, then the device structure is simple, but multiple exit pupils cannot be implemented
Solution Approach 1:
The reflector is divided into multiple reflection parts (first reflection part, second reflection part, etc.), each with different tilt angles. This segmentation allows different portions of light from the display to be reflected to different exit locations, enabling multiple exit pupils without requiring multiple complete optical systems.
Solution Approach 2:
The patent introduces angular dimension by tilting different reflection parts at different angles relative to the display. This angular variation creates multiple exit locations in space, transforming a single-exit-pupil system into a multi-exit-pupil system by utilizing the angular dimension of light propagation.
2Adaptability or versatility
If multiple reflectors are used to create multiple exit pupils, then multiple exit locations are achieved, but the device complexity increases
Solution Approach 1:
Multiple reflection parts are integrally coupled together to form a single unified reflector structure. This merging approach achieves multiple exit locations through one integrated component rather than multiple separate reflectors, reducing device complexity while maintaining the multi-exit-pupil functionality.
Solution Approach 2:
The single reflector with multiple reflection parts serves multiple functions simultaneously: it reflects light to multiple different exit locations, creates multiple exit pupils, and maintains a compact integrated structure. This multi-functionality eliminates the need for multiple separate optical paths.
3Adaptability or versatility
If the reflector is fixed at a single angle, then the optical path is simple, but light cannot be directed to multiple locations
Solution Approach 1:
Different regions (reflection parts) of the reflector are given different local properties by tilting each part at a specific angle. The first reflection part is tilted at a first angle, the second reflection part at a second angle, allowing each local region to direct light to a specific exit location appropriate for that region.
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
This solution enables a more immersive user experience by allowing multiple exit pupils, enhancing the field of view and brightness conditions, while maintaining a compact and efficient design.
Implementation Method 1
a reflector has a shape bent at a different angle with respect to the display while reflecting the light generated by the light source to the display
Implementation Method 2
the display may include a photopolymer recorded to selectively reflect the light according to the incident angle of the light for each location of the display by hologram recording
Data Source
AI summary
Disclosed is an electronic device. An electronic device according to the present disclosure may include: an optical system generating light for implementing an image; and a display emitting the light provided from the optical system to an exit location set according to an incident location and an incident angle, in which the optical receiver may include a light source, and a reflector has a shape bent at a different angle with respect to the display while reflecting the light generated by the light source to the display. 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.