Auxiliary Driver Brightness Control for Projection Systems
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Solution Overview
Problem
Conventional projection systems face challenges in generating brighter light beams without significant modifications to the controller, making it difficult to achieve increased brightness in a simple and cost-effective manner.
Innovation Solution
A beam generating apparatus with a plurality of light emitting devices, drivers, and an auxiliary driver that adjusts the brightness of a light emitting device by enabling an auxiliary control signal, which disables the corresponding control signal, allowing the auxiliary driver to provide a driving current and adjust the brightness of the light beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the controller design is significantly modified to increase brightness, then the brightness of light beams is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent introduces an auxiliary driver as an intermediary component between the existing controller and the light emitting device. This auxiliary driver receives control signals from the existing controller and generates enhanced driving currents to boost light beam brightness, without requiring modifications to the controller itself. The auxiliary driver acts as a mediator that amplifies the driving capability while maintaining compatibility with the original controller architecture.
Solution Approach 2:
The patent segments the driver function into two independent parts: the original driver circuitry within the controller and the auxiliary driver circuitry. This segmentation allows the auxiliary driver to be added as a separate module that works in conjunction with the existing driver, enabling brightness enhancement without altering the original controller design or requiring significant modifications to the existing driver circuitry.
2Illumination intensity
If additional drivers are added to increase brightness, then the brightness of light beams is improved, but the device complexity and cost increase
Solution Approach 1:
The patent merges the function of the original driver and the auxiliary driver into a coordinated working system. The auxiliary driver is designed to work in conjunction with the existing driver, combining their outputs to achieve enhanced brightness. This merging approach allows the system to leverage both the original driver's control capabilities and the auxiliary driver's current amplification capability, achieving brightness enhancement without simply adding independent driver systems.
Solution Approach 2:
The auxiliary driver is designed with multi-functionality: it can receive control signals from the existing controller, generate enhanced driving currents, and adaptively adjust its output based on the operating conditions. This universal design allows the auxiliary driver to serve multiple purposes: brightness enhancement, current compensation, and system compatibility maintenance, thereby reducing the need for additional specialized 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
The solution increases the brightness of the light beams generated by the projection system without adding additional drivers, enhancing the operational performance of the beam generating apparatus.
Implementation Method 1
A plurality of light emitting devices are provided to respectively generate color light with different wavelengths
Data Source
AI summary
A projection system, a beam generating apparatus, and a beam generating method are provided. The beam generating apparatus includes a plurality of light emitting devices, a plurality of drivers, and a first auxiliary driver. The light emitting devices respectively generate a plurality of color lights with different wavelengths. The drivers respectively drive the light emitting devices according to a plurality of control signals. The first auxiliary driver drives a first light emitting device according to a first auxiliary control signal, and adjusts brightness of the first light emitting device according to a first regulating signal. When the first auxiliary control signal is enabled, the control signal corresponding the first light emitting device is disabled.