Adjustable Multifocal Lens for Dynamic Vision Adaptation
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Solution Overview
Problem
Existing eyeglasses, particularly multifocal lenses, face challenges in adapting to varying ambient light conditions and viewing distances, leading to issues such as blurred vision when transitioning between different optical zones, especially in lifestyle settings like watching TV in bed or navigating stairs.
Innovation Solution
The development of eyewear with adjustable multifocal lenses that can move relative to the wearer's eyes, featuring movable members and mechanisms for automatic or semi-automatic adjustment, allowing different optical zones to be positioned optimally based on ambient light and viewing distance, ensuring clear vision without the need for constant adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the eyeglass lens is fixed in position, then the structure is simple and stable, but the wearer cannot adapt to different viewing distances and ambient light conditions
Solution Approach 1:
The patent applies the dynamics principle by making the lens position adjustable rather than fixed. The lens can move vertically within the frame to change its optical zone alignment with the wearer's pupil, allowing adaptation to different viewing distances (distance, intermediate, near) and ambient light conditions (daytime, nighttime) without requiring multiple separate lenses or complex mechanical systems.
Solution Approach 2:
The patent changes the parameter of lens position (vertical movement within the frame) to adapt to different viewing conditions. By adjusting the lens position parameter, the system provides different optical powers at different locations on the lens, enabling the wearer to switch between distance, intermediate, and near vision zones as needed.
2Ease of operation
If the wearer raises the temples high on the head to tilt the eyeglasses, then the near area is lowered and no longer between the eye and the TV, but the solution is temporary and not optimal
Solution Approach 1:
The patent implements self-service by allowing the wearer to easily adjust the lens position themselves without requiring assistance from an optometrist or complex mechanical systems. The lens can be manually repositioned within the frame by the wearer to achieve the desired viewing angle and optical zone alignment for different activities such as watching TV in bed or navigating stairs.
3Reliability
If the wearer looks down at the stairs, then the wearer can see the stairs, but the wearer looks through a portion of the lens designed for different optical power, resulting in blurry vision
Solution Approach 1:
The patent applies dynamics by making the lens position adjustable to match the wearer's viewing angle. When the wearer looks down at stairs or performs other activities requiring downward gaze, the lens can be repositioned vertically to ensure that the appropriate optical zone (for distance, intermediate, or near vision) remains aligned with the pupil, maintaining clear vision throughout the movement.
Data Source
AI summary
Embodiments may provide multifocal eyeglass lenses and eyewear that may comprise multifocal translating eyeglass lenses. The eyewear may comprise a lens housing, a first temple and a second temple coupled to the lens housing, and a first and a second lens supported by the lens housing. The lens may comprise a first optical zone having an optical power corresponding to a wearer's far distance day time optical power need and a second optical zone having an optical power corresponding to a wearer's far distance night time optical power need. The eyewear may further comprise a movable member coupled to the lens housing, the first temple, or the second temple, wherein the movable member may be configured to move between a first position and a second position, where a position of the lens may be based at least in part on the position of the movable member. The eyewear may further include a mechanism adapted to adjust the position of the movable member.