Double-Sided Moving Head Light Fixture with Independent LED Control
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Solution Overview
Problem
Existing moving head light fixtures are limited to single-sided operation, restricting their ability to generate light in multiple directions simultaneously and independently control color and intensity.
Innovation Solution
A double-sided moving head light fixture with independently controllable LEDs at the front and rear ends, capable of rotating freely in a yoke and base, utilizing High Power LEDs, UV LEDs with phosphor filters, video arrays, white LEDs, or Electrode Less Plasma Source (ELPS) bulbs, and incorporating active cooling and filtration systems to enhance light output and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If single-sided moving head light fixtures are used, then the structure is simple and easy to manufacture, but the ability to generate light in multiple directions simultaneously is limited
Solution Approach 1:
The light fixture is divided into two independent light-generating ends (front and rear), each with its own LED array and control electronics. This segmentation allows each end to independently generate and control light in different directions, resolving the contradiction between versatility and complexity by making the system modular rather than attempting to achieve multi-directional lighting through a single complex mechanism.
Solution Approach 2:
The invention transitions from single-sided (one-dimensional lighting control) to double-sided (two-dimensional lighting control) operation. By adding the rear light-generating end, the system gains the ability to illuminate in opposite directions simultaneously, effectively adding a dimensional aspect to light direction control without requiring complex mechanical adjustments.
2Illumination intensity
If High Power LEDs are used, then light intensity is improved, but heat generation increases requiring active cooling
Solution Approach 1:
The invention converts the harmful heat generated by High Power LEDs into a manageable thermal management challenge. By implementing active cooling systems (fans or liquid cooling) and thermal conduction paths through the heat sink structure, the system transforms the harmful thermal energy into a controlled parameter that can be dissipated efficiently, allowing the beneficial high light output to be maintained without damage to the LED components.
3Illumination intensity
If UV LEDs with phosphor filters are used, then visible light generation is achieved, but color conversion complexity increases
Solution Approach 1:
The invention employs phosphor filters that convert UV light into visible light through photoluminescence. By selecting specific phosphor materials with appropriate emission spectra, the system achieves desired color outputs (including white light) from UV LED sources. This approach simplifies the overall system compared to using multiple colored LEDs, as a single UV LED type can produce various visible colors by changing only the phosphor layer composition.
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 simultaneous and independent control of light direction and color in multiple directions, achieving high-intensity and versatile lighting with effective cooling and improved light concentration and filtration.
Implementation Method 1
The UV LEDs can be extremely powerful but in order to generate a visible light, a color conversion is necessary. This color conversion can be performed in a phosphor filter that can be placed above the UV LEDs or integrated into TIR lenses. These phosphor filters can convert the UV light into white light which will be highly intensive.
Implementation Method 2
the light output can be further improved if the LEDs are operated together with TIR lenses which are able to concentrate the generated light from the LEDs
Implementation Method 3
By using High Power LEDs for the light sources, it is possible to generate a relatively high intensity of light
Implementation Method 4
incorporating active cooling and filtration systems to enhance light output and control
Data Source
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AI summary
The present invention relates to a moving head light fixture, which, moving head light fixture comprises a light generating head, which head is carried in a yoke, which head is rotatable to the yoke, which yoke is rotatable to a base, which head comprises electronic circuits for LED control. The moving head comprises a first and a second end section, which first and second end sections comprise a number of light sources. Hereby it can be achieved that the moving head light fixture which is able at the same time to generate a light into different directions. By having independent control over the light sources in both directions, it is possible to control the light from an external controller independently in both directions. The light sources could be formed out of a multiple of single light sources generating light at different colors. In this way it should be possible by means of an external command to the moving head light fixture to control the color of the light as well in the front direction and also in the opposite rear direction.