Removable Optical Assembly Mounting for AR Waveguides
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Solution Overview
Problem
Existing optical assemblies secured to augmented-reality glasses frames are difficult to remove for correction or replacement due to secure attachment, leading to potential waste and increased manufacturing costs if defects are identified post-attachment.
Innovation Solution
A detachable mounting mechanism using flexure assemblies with a detachable coupling, such as small screws, removable nuts, or a flexible clip, allows for the waveguide to be removed without damaging the frame or waveguide, enabling easy replacement and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical assembly is securely attached to the frame using permanent mounting methods, then the reliability of the attachment is improved, but the ease of repair deteriorates because the assembly cannot be removed for correction or replacement
Solution Approach 1:
The mounting mechanism is divided into separate components: a mounting bracket attached to the frame and a detachable coupling that connects the optical assembly to the bracket. This segmentation allows the optical assembly to be securely mounted while enabling easy removal and replacement by simply disengaging the detachable coupling, resolving the contradiction between secure attachment and ease of repair
Solution Approach 2:
The mounting system transitions from a static permanent attachment to a dynamic detachable connection. The detachable coupling (using screws, clips, or snap-fit mechanisms) allows the optical assembly to be easily detached and reattached, providing the reliability of secure mounting during use while enabling quick repair or replacement when needed
2Stability of the object's composition
If the optical assembly is permanently secured to the frame, then the stability of the product is improved, but the loss of substance worsens because defective assemblies cannot be replaced without scrapping the entire product
Solution Approach 1:
By segmenting the mounting system into a permanent bracket attached to the frame and a removable detachable coupling, the patent enables separation of the optical assembly from the frame. This allows defective optical assemblies to be removed and replaced while retaining the frame and bracket, thereby reducing material waste and improving sustainability
Solution Approach 2:
The detachable coupling mechanism enables the optical assembly to be easily discarded (removed) and replaced with a new one, while the frame and mounting bracket are recovered and retained for continued use. This reduces the need to scrap entire products and minimizes material waste
3Ease of repair
If a detachable coupling mechanism is used to allow easy removal of the optical assembly, then the ease of repair is improved, but the device complexity worsens due to additional components
Solution Approach 1:
The mounting mechanism is segmented into three main components: a mounting bracket, a detachable coupling, and the optical assembly. This segmentation provides easy repair capability while keeping each component simple and functional, avoiding excessive overall complexity
Solution Approach 2:
The mounting bracket and detachable coupling are designed as universal components that can accommodate different optical assemblies. The bracket attaches to the frame in one location, and the detachable coupling provides a standardized interface, allowing the same mounting mechanism to work with various optical assemblies without increasing complexity
Data Source
AI summary
Optical assemblies may include a projector assembly, a waveguide, and a mounting mechanism. The projector assembly may be configured for generating an image, and the waveguide may be configured for transmitting the image to a location in front of a user's eye. The mounting mechanism may removably couple the waveguide to an underlying frame. The mounting mechanism may include a detachable coupling, at least one flexure secured to a peripheral edge of the waveguide, and at least one flexure support coupled to the at least one flexure. The flexure support may be removably secured to the detachable coupling by a removable retainer. Various other related systems, methods, and devices are also disclosed.