Mouse with Multi-Plane Housing for Stable Optical Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mice designs cause strain and pain due to long-term use, particularly because of unstable cursor tracking and shifting of the mouse's center of gravity when used vertically or obliquely, leading to frame loss and shaking issues.
Innovation Solution
The mouse incorporates a light-transmitting region at the intersection of specific planes on the housing, allowing the image sensing element or laser Doppler cursor positioning sensor to maintain consistent light reflection and tracking regardless of the mouse's orientation, preventing frame loss and shaking during vertical or oblique sliding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the mouse is used in vertical or oblique position to change wrist posture, then user fatigue is reduced, but the contact area between the housing and working surface decreases causing unstable shaking and frame loss
Solution Approach 1:
The housing is divided into multiple contact surfaces: a bottom surface for horizontal usage and a rear end surface for vertical/oblique usage. This segmentation allows each surface to be optimized for its specific usage orientation, ensuring stable contact area regardless of mouse orientation.
Solution Approach 2:
The solution transitions from a single-plane contact approach to a multi-plane contact approach by adding contact capability in the vertical dimension (rear end surface) in addition to the horizontal bottom surface, enabling stable tracking across different usage orientations.
2Ease of operation
If the button height is increased relative to the working surface, then button operation comfort is improved, but the center of gravity moves up causing the mouse to sway inward resulting in frame loss
Solution Approach 1:
The design compensates for the raised center of gravity caused by elevated buttons by optimizing the distribution of other components and the contact geometry with the working surface. The multi-plane contact provides stabilizing counter-moments that prevent the mouse from swaying inward during button operation.
3Measurement precision
If the light-transmitting region is positioned at the intersection of specific planes, then consistent light reflection is achieved across different orientations, but the structural complexity of the housing increases
Solution Approach 1:
The light-transmitting region at the plane intersection serves multiple functions: it maintains consistent optical path geometry across different usage orientations (horizontal, vertical, oblique) and works with both the bottom surface and rear end surface contact configurations. This multi-functionality achieves orientation-independent tracking without requiring separate optical systems for each orientation.
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 design ensures stable cursor tracking and prevents frame loss and shaking, maintaining sensitivity and accuracy across both horizontal and vertical usage modes, reducing user fatigue and improving operational stability.
Implementation Method 1
a light source is further provided to emit a light beam from the light-transmitting region to the working surface, and the lens is configured to focus a reflected light of the light beam from the working surface to transmit it to the image sensing element through the light-transmitting region
Implementation Method 2
the lens is configured to focus a reflected light of the light beam from the working surface to transmit it to the image sensing element
Implementation Method 3
a laser Doppler cursor positioning sensor... the laser Doppler cursor positioning sensor is configured to project a light from the light-transmitting region to the working surface, and a reflected light is also fed back to the sensor through the light-transmitting region
Data Source
AI summary
A mouse including a housing, an image sensing element, a lens, or a laser Doppler cursor positioning sensor; a light-transmitting hole is located where the housing is intersected with a third plane, the third plane is defined by an edge intersecting a first plane and a second plane and a halving line of an angle of the first plane and the second plane; a light source is provided and configured to emit a light beam from the light-transmitting region to the working surface, and the lens is configured to focus a reflected light of the light beam on the working surface to be transmitted to the image sensing element through the light-transmitting hole; or the laser Doppler cursor positioning sensor is configured to project a light from the light-transmitting region to the working surface, and a reflected light is also fed back to the sensor through the light-transmitting hole.