Rotating Beam Shaping Object for Dynamic LED Light Effects
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Solution Overview
Problem
Existing projecting light fixtures face challenges in creating a large number of light effects due to limited focal area capabilities and space constraints, making it difficult to achieve both compactness and varied illumination in entertainment lighting applications.
Innovation Solution
A projecting light fixture with a rotatable beam shaping object and a controller that synchronizes LED on-periods and off-periods with the rotation of the beam shaping object, allowing for rapid alternation of different beam shaping patterns and precise control of illumination to create a variety of light effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple beam shaping objects are arranged in the focal point to create various light effects, then the variety of light effects is improved, but the device size and complexity increase
Solution Approach 1:
The patent employs a rotatable beam shaping object that can be dynamically positioned at different angular orientations around the focal point. This dynamic configuration allows a single physical component to occupy multiple effective positions, enabling various light effects (such as starbursts, comets, and patterns) without requiring multiple separate beam shaping objects. The rotatable mechanism transforms a static multi-component system into a dynamic single-component system, resolving the contradiction between effect variety and device complexity.
2Adaptability or versatility
If multiple beam shaping objects are arranged in the focal point to create various light effects, then the variety of light effects is improved, but the number of components increases
Solution Approach 1:
The patent designs a single beam shaping object with multiple functional surfaces or zones that can be rotated into different positions. Each surface or zone is optimized for a specific light effect, but all are integrated into one component. This multi-functional design allows the single component to perform the roles of multiple separate beam shaping objects, thereby reducing the total number of components while maintaining the ability to create various light effects.
3Adaptability or versatility
If the beam shaping object is rotated at high speed to create dynamic effects, then the light effect versatility is improved, but the synchronization control complexity increases
Solution Approach 1:
The patent utilizes periodic rotation of the beam shaping object at controlled speeds to create dynamic light effects. The control system synchronizes the rotation period with the LED illumination cycles and shutter operations, creating predictable and repeatable light patterns. This periodic action approach transforms the control problem into a rhythm-based system where timing and frequency are the key parameters, simplifying the control logic compared to arbitrary positioning of multiple components.
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 creation of numerous light effects by continuously rotating the beam shaping object and toggling LEDs between on and off periods, resulting in a high-speed alternation of patterns that can be perceived as a single image, enhancing the versatility and compactness of the lighting system.
Implementation Method 1
at least one LED generating at least one source light beam
Implementation Method 2
the shape of the light beam in midair is defined by the beam shaping object
Data Source
AI summary
The present invention relates to a projecting light fixture comprising at least one LED generating light beam and a projecting system positioned configured to project the light beam along an optical axis. A beam shaping object is arranged between the LED and the projecting system and comprises a least two different beam shaping patterns, which can be arranged in the source light beam upon rotation of the beam shaping object in relation to the light beam. An actuator is configured to continuously rotate the beam shaping object in relation to the source light beam in order to alternately arrange the beam shaping patterns in the light beam. The projecting light fixture comprises a synchronizer providing a synchronizing signal indicative of: the rotation speed and/or the angular position of the beam shaping object; the position of beam shaping patters in relation to the light beam. Where a controller is configured to toggle the LED between a LED on-period and a LED off-period based on the synchronizing signal.