Compact Light Path Adjustment Mechanism With Nested Light Valve Layout
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Solution Overview
Problem
Conventional light path adjustment mechanisms are bulky, heavy, and occupy large space, making them difficult to miniaturize and integrate into compact image display devices, which limits their ability to enhance image resolution and picture quality.
Innovation Solution
A light path adjustment mechanism comprising a bracket, carrier, axes, and optical plate member, where the light valve can be inserted into the bracket's opening, reducing overall space and back focus, and utilizing flexible members and actuators to tilt or rotate the optical plate member, allowing for closer proximity to the prism and reducing occupied space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional light path adjustment mechanism is used to adjust propagation paths of light, then image resolution and picture quality are improved, but the number of components, weight and occupied space are considerably large
Solution Approach 1:
The light path adjustment mechanism is divided into separate functional modules: a light valve unit with light valves arranged in a matrix, a light path adjustment unit with multiple optical plates, and a control unit. Each module performs a specific function, allowing the system to maintain high image resolution while reducing overall complexity and occupied space through modular design.
Solution Approach 2:
The patent arranges light valves in a matrix configuration and uses multiple optical plates positioned at different spatial locations and orientations to adjust light propagation paths in multiple dimensions. This multi-dimensional arrangement allows compact integration of the light path adjustment functionality while maintaining high image resolution through precise light control.
2Adaptability or versatility
If conventional light path adjustment mechanisms are used, then light propagation paths can be adjusted, but the mechanisms are difficult to be miniaturized
Solution Approach 1:
The light path adjustment unit employs optical plates that can be dynamically tilted or rotated to change light propagation paths. The ability of these optical components to dynamically adjust their orientation allows the mechanism to maintain versatile light path control while using fewer components and occupying less space compared to static conventional mechanisms.
3Volume of stationary object
If the light path adjustment mechanism is positioned closer to the prism, then occupied space is reduced, but the light valve may block the light path
Solution Approach 1:
The light valve unit and light path adjustment unit are integrated in a nested arrangement where the light path adjustment mechanism is positioned within the space defined by the light valve housing. This nested configuration allows the light path adjustment mechanism to be placed closer to the prism without being blocked by the light valve, as the light paths are spatially separated and coordinated through the matrix arrangement of light valves.
Data Source
AI summary
A light path adjustment mechanism includes a bracket, a light valve, a carrier, a first axis, a second axis and an optical plate member. A surface normal of a surface of the light valve crosses the bracket to define an intersection closest to the surface of the light valve, and the bracket has an end point furthest from the intersection measured in the direction of the surface normal. A distance between the intersection and the surface measured in the direction of the surface normal is smaller than a distance between the intersection and the end point measured in the direction of the surface normal.