LED Array Projector for Sharp Animated Images
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Solution Overview
Problem
Existing projectors for household items and toys face challenges with size, weight, power requirements, image sharpness, resolution, and complexity in producing animated images, often relying on simple lens systems that fail to accurately blend image segments and control light paths.
Innovation Solution
A projector system utilizing a light array of LEDs configured in a geometric pattern, a reflector array with reflective surfaces, and a film array aligned with lenses in a curved parabolic orientation, allowing for sequential flashing of light sources to create animations without moving parts, and incorporating digital software for precise light control and image alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple lens system is used for projection, then the device complexity is reduced, but the image sharpness and light path control deteriorate
Solution Approach 1:
The patent divides the projection system into multiple discrete LED light sources arranged in an array, each corresponding to a specific image element. This segmentation allows independent control of each light source to achieve sharp focus and precise light path management without requiring complex lens systems. Each LED acts as an independent point source, eliminating the need for complex optical blending mechanisms.
Solution Approach 2:
The patent replaces traditional mechanical lens-based optical systems with a direct LED light emission approach. Instead of using lenses to focus and blend light paths, the system uses individually controllable LED elements that directly emit light through corresponding image elements, simplifying the optical mechanism while maintaining or improving image sharpness through digital control.
2Quantity of substance
If traditional projection methods are used, then the device can produce images, but the size and weight increase
Solution Approach 1:
The patent uses a segmented array of LEDs and corresponding image elements that can be arranged in compact configurations. This modular approach allows the projection system to be miniaturized while maintaining full image production capability, as each LED-image element pair is an independent functional unit that can be densely packed.
Solution Approach 2:
The patent creates a multi-functional system where the same LED array structure serves multiple purposes: light emission, image formation, and animation generation through sequential flashing. This universal design eliminates the need for separate components for different functions, reducing overall device size and weight while maintaining full image production capability.
3Adaptability or versatility
If sequential flashing of multiple light sources is used to create animation, then the animation capability is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple LED light sources and their corresponding image elements into a single integrated array structure. This merging allows the system to achieve complex animation capabilities through coordinated control of the array elements without requiring separate mechanical components for each animation function, thus improving versatility while managing device complexity.
Solution Approach 2:
The patent implements animation through periodic sequential flashing of LED array elements in controlled patterns. This periodic action approach enables diverse animation sequences and movements by varying the timing and pattern of LED activation, achieving high adaptability for different animation types without adding physical complexity to the device structure.
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 low-cost, efficient production of high-resolution animated images with reduced complexity, achieving sharp focus and accurate light path control, suitable for various applications including toys and decorative items with limited throw distance.
Implementation Method 1
a light array, comprising two or more light emitting diodes (LEDs), configured in a geometric pattern
Implementation Method 2
each light source associated with a specific image... each film portion having an image printed, pasted, or saved thereon
Implementation Method 3
a reflector array, comprising a reflector cone for each LED, each reflector cone comprising an orifice or opening for receiving light from an LED, a reflective surface, and an output for shining the light from the LED
Data Source
AI summary
The present invention is generally directed to a projector system and method that utilizes a number of light sources with associated films or slides, wherein each film or slide has an image thereon, and by selectively lighting the light sources in certain sequences, an illusion of animation may be achieved. Projector systems may include arrays of light emitting diodes (LEDs), reflectors, condensers, lens groups comprising one or more lenses, and/or aperture or light box elements to reduce stray light. Arrays may be configured in a non-planar arrangement to align projection of images on a flat, curved, or irregular substrate. Sounds corresponding to animation images may be played via an attached audio output device.