Movable Lens Lighting Assembly for In-Situ CCT Adjustment
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Solution Overview
Problem
Existing lighting systems restrict the ability to adapt the mood or feeling of a room ad-hoc due to restricted access to the lighting circuit, requiring removal or replacement of the lighting assembly to change correlated color temperature (CCT).
Innovation Solution
A lighting assembly with a lens that can be moved in a prescribed manner, such as rotation or linear movement, to actuate a light control circuit without removing or replacing parts, allowing users to change CCT without needing a smart light system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lighting assembly is designed with a fixed light source component, then the manufacturing precision and reliability are improved, but the adaptability to change CCT is worsened
Solution Approach 1:
The patent applies the dynamics principle by making the lens movable relative to the light source component. The lens can be positioned at different locations along the optical axis by rotating the adjustment mechanism, which dynamically changes the optical path and allows the same lighting assembly to produce different CCT values. This resolves the contradiction by enabling adaptability through motion while maintaining a fixed, reliable light source component.
2Device complexity
If the lighting assembly requires circuit access to change CCT, then the device complexity is reduced, but the ease of operation is worsened
Solution Approach 1:
The patent replaces the electrical control mechanism (circuit switching) with a mechanical adjustment system. By rotating the lens adjustment mechanism, the user mechanically repositions the lens to change CCT without needing to access or modify any electrical circuits. This substitution maintains simple device architecture while dramatically improving ease of operation, allowing CCT adjustment similar to changing a light bulb.
3Device complexity
If the lens is made fixed in the lighting assembly, then the device complexity is reduced, but the ease of operation is worsened
Solution Approach 1:
The patent implements a movable lens design where the lens can be repositioned along the optical axis through rotational motion of an adjustment mechanism. This dynamic positioning capability allows the same simple lighting assembly to provide multiple CCT options, improving ease of operation without significantly increasing device complexity since the movement mechanism integrates into the existing lens housing.
Data Source
Figure 1
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Figure 4a
AI summary
A lighting assembly (10) comprises a light source assembly (12) including a light source component (14) and a light control circuit configured to change the correlated colour temperature (CCT) of the light source component (14). The lighting assembly (10) also includes a lens (20) being arranged in the lighting assembly (10) to permit access to the lens (20) when the lighting assembly (10) is in-situ, and to permit movement of the lens (20) in a prescribed manner while remaining in-situ. The lens (20) and the light source assembly (12) each include mutually engageable actuators (22a, 22b), the actuators (22a, 22b) being configured to translate movement of the lens (20) to movement of the actuators (22a, 22b) to physically actuate the light control circuit.