Adjustable Light Assembly With Pivotable Beam-Focus Groupings
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Solution Overview
Problem
Existing pre-focused light sources, such as LEDs and lasers, are not optically efficient in larger illumination systems due to fixed focusing configurations, and TIR lens elements lack adjustability for beam pattern or divergence.
Innovation Solution
An adjustable light assembly with pivotably coupled illuminator groupings and an adjustment mechanism, allowing each grouping to pivot relative to the enclosure to adjust optical beam divergence angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a moveable collection lens is used to provide adjustable focusing, then beam focus adjustability is improved, but optical efficiency deteriorates and device complexity increases
Solution Approach 1:
The patent applies the dynamics principle by making the entire illuminator grouping pivotable rather than moving internal lens components. The illuminator grouping can rotate between a first position for narrow beam focus and a second position for wide beam divergence, achieving focus adjustment through dynamic repositioning of the light source assembly rather than internal lens movement. This maintains optical efficiency while providing adjustability.
2Loss of energy
If a TIR lens element is used for optimized optical performance, then optical efficiency is improved, but adaptability deteriorates as the lens cannot adjust focus
Solution Approach 1:
The patent combines the TIR lens element (which provides optimized optical efficiency) with a pivotable illuminator grouping structure. The entire assembly including the TIR lens can rotate between different positions, enabling the system to achieve both high optical efficiency from the TIR lens and focus adjustability through the dynamic repositioning of the complete illuminator grouping.
3Device complexity
If pre-focused light sources are used in larger illumination systems, then device complexity is reduced, but adaptability deteriorates due to fixed focusing configurations
Solution Approach 1:
The patent maintains the simplicity of pre-focused light sources while adding adaptability by making the entire illuminator grouping pivotable. The light sources remain pre-focused (maintaining low device complexity), but the grouping can rotate between positions to change beam patterns (narrow focus to wide divergence), thereby achieving adaptability without increasing internal system complexity.
Data Source
AI summary
According to one aspect of the present disclosure, an adjustable light assembly is disclosed. The adjustable light assembly comprises an enclosure and a plurality of illuminator groupings within the enclosure. Each of the illuminator groupings comprises a plurality of pre-focused light sources and is pivotably coupled to the enclosure. An adjustment mechanism is coupled to each of the illuminator groupings to pivot each of the illuminator groupings relative to the enclosure.