Rotatable Liquid Crystal Illumination Assembly for Light Pattern Control
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Solution Overview
Problem
Existing illumination devices lack the ability to rotate the light distribution pattern about the axial center, limiting their flexibility in adjusting light distribution shapes.
Innovation Solution
An illumination device comprising a light source, a liquid crystal panel, a first holder, a second holder with a rotational support part, a panel holding cover, and a coupling part, along with a control board and wire configuration, allowing the liquid crystal panel and second holder to rotate relative to the substrate, thereby changing the light distribution pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the illumination device uses a fixed coupling member between base and LED, then the structure is simple and stable, but the light distribution pattern cannot be rotated about the axial center
Solution Approach 1:
The patent introduces a rotational support part that enables the second holder (containing the liquid crystal panel) to rotate relative to the first holder (containing the LED) about the axial center. This dynamic rotational capability allows the light distribution pattern to be adjusted in different directions without changing the overall axial structure, resolving the contradiction between adaptability and device complexity.
Solution Approach 2:
The coupling member is divided into two separate holders: a first holder for the LED and a second holder for the liquid crystal panel. These holders are connected through a rotational support part, allowing independent rotation of the second holder. This segmentation enables rotational adjustment of the light distribution pattern while maintaining structural simplicity through modular design.
2Adaptability or versatility
If the coupling member length is changed to adjust light distribution angle, then the light distribution angle can be converted between omnidirectional and downward types, but the light distribution pattern cannot be rotated about the axial center
Solution Approach 1:
The rotational support part provides a dynamic rotation mechanism that allows the second holder to rotate about the axial center while maintaining the axial distance between the LED and liquid crystal panel. This enables orientation adjustment of the light distribution pattern without requiring changes to the coupling member length or axial positioning, simplifying the overall coupling mechanism.
3Adaptability or versatility
If a rigid coupling structure is used between holders, then the structure is stable and simple, but the wire connecting liquid crystal panel and control board cannot accommodate rotation
Solution Approach 1:
The wire connecting the liquid crystal panel and control board is configured to extend in the axial direction and is supported by a wire support part. This arrangement allows the wire to accommodate the rotational movement of the second holder relative to the first holder, preventing wire damage while maintaining connection reliability. The wire support part ensures the wire remains properly positioned during rotation.
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
Enables the illumination device to dynamically adjust the light distribution pattern by rotating it about the axial center, providing enhanced flexibility in light distribution shapes.
Implementation Method 1
a liquid crystal panel disposed on one side in a first direction of the light source
Data Source
AI summary
An illumination device includes: a light source; a liquid crystal panel disposed on one side of the light source; a first holder having a central axis extending in the first direction and holding the light source; a second holder including a rotational support part, a panel holding cover, and a coupling part, the rotational support part supporting the first holder rotatably in a circumferential direction, the panel holding cover holding the liquid crystal panel, the coupling part coupling the rotational support part and the panel holding cover; a control board disposed on another side in the first direction of the first holder and controls the liquid crystal panel; and a wire extending in the first direction and electrically coupling the liquid crystal panel and the control board. Further, the second holder includes a wire support part supporting part of the wire.