Light Path Adjustment Mechanism with Nested Coils
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Solution Overview
Problem
Conventional light path adjustment mechanisms are bulky, heavy, and occupy significant space due to their large number of components, making them difficult to miniaturize and integrate into compact image display devices.
Innovation Solution
A compact light path adjustment mechanism is designed using a carrier with an inner and outer frame, elastic members, and coils, where the coils are positioned to overlap with the carrier, allowing the optical plate member to tilt without obstructing light propagation, reducing the overall size and weight by hiding components under the optical plate member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional light path adjustment mechanism is used, then light path adjustment function is achieved, but occupied space and weight are considerably large
Solution Approach 1:
The patent merges the optical plate member with the carrier structure, where the optical plate is disposed on the carrier and can be integrated as a single assembly. The coils are positioned to overlap with the carrier, allowing multiple components to occupy the same spatial footprint, effectively reducing the total volume required for the light path adjustment mechanism.
Solution Approach 2:
The patent implements nesting by placing coils underneath the optical plate member, where components are arranged in overlapping layers. The first and second coils are disposed on opposite sides of the carrier, with their projections overlapping the projection of the optical plate member, creating a nested configuration that minimizes occupied space.
2Volume of moving object
If coils are positioned to overlap with carrier, then occupied space is reduced, but light propagation path must be ensured
Solution Approach 1:
The patent applies local quality by creating a differentiated spatial arrangement where different regions serve different functions. The optical plate member occupies the upper region for light reflection, while coils are positioned in the lower region underneath. This local differentiation ensures that light propagation paths remain unobstructed while coils are hidden underneath, achieving both space reduction and maintained optical functionality.
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 achieves a slim and compact light path adjustment mechanism that enhances image resolution and picture quality by allowing precise control over light beam paths while minimizing occupied space and component count.
Implementation Method 1
a first pair of elastic members connects the inner frame with the outer frame and defines a first axis, and a second pair of elastic members connects the outer frame with the support and defines a second axis
Implementation Method 2
the first coil, the second coil, the third coil and the fourth coil are disposed on the second side of the carrier
Implementation Method 3
The reflective minor is disposed on the first side of the carrier
Data Source
AI summary
A light path adjustment mechanism includes a carrier, an optical plate member, a support, a first axis, a second axis, a first actuator and a second actuator. The carrier includes an inner frame and an outer frame, the optical plate member is disposed on the inner frame and has a reflective surface and an opposite surface opposite the reflective surface. The first axis is disposed between the inner frame and the outer frame, and the second axis is disposed between the outer frame and the support. The first actuator and the second actuator are disposed on one side of the carrier facing away from the reflective mirror, and the opposite surface of the reflective mirror and the first axis are spaced at a distance.