Adjustable Reflective Mirror Module for Illumination Systems

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Solution Overview

Problem

Current projector illumination systems suffer from power loss and reduced image quality due to ineffective centralization of light beams from solid-state light-emitting elements and reflective mirrors, exacerbated by the lack of an adjusting mechanism for the reflective mirrors, leading to increased temperature and inefficient light utilization.

Innovation Solution

An illumination system with a reflective mirror module that includes a fixing structure and an adjusting mechanism, allowing for precise adjustment of the reflective mirror's location and angle relative to the optical axis, ensuring light beams are guided along a specified optical path to enhance performance and minimize power loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If reflective mirrors are aligned with the optical axis of the light-emitting element array, then the light beams can be reflected and guided to the focusing lens, but assembly tolerance and light-emitting element characteristics cause the light beams to fail to centralize effectively, resulting in power loss and reduced utilization efficiency

Engineering Contradiction:
Improvepower lossVSAvoidassembly tolerance
Core Design Contradiction:
Loss of energyVSManufacturing precision

Solution Approach 1:

The patent applies the dynamics principle by introducing an adjusting mechanism that enables the reflective mirrors to be dynamically positioned and angled relative to the optical axis. This allows the system to adapt to assembly tolerances and light-emitting element variations, ensuring that light beams are effectively centralized and guided to the focusing lens, thereby reducing power loss and improving utilization efficiency.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If no adjusting mechanism is provided for the reflective mirrors, then the device complexity is reduced, but the light beams cannot be effectively centralized, leading to increased power loss and deteriorated utilization efficiency

Engineering Contradiction:
Improvedevice complexityVSAvoidpower loss
Core Design Contradiction:
Device complexityVSLoss of energy

Solution Approach 1:

The patent introduces an adjusting mechanism for the reflective mirrors, which adds dynamic adjustment capability to the system. This mechanism allows for precise positioning and angling of the mirrors to compensate for assembly tolerances and optimize light beam centralization, thereby reducing power loss and improving utilization efficiency without significantly increasing overall device complexity.

Inventive Principle:
Principle #15Dynamics

3Temperature

If the light beams are not effectively guided to the focusing lens, then the temperature of the illumination system increases, but providing an adjusting mechanism increases the device complexity

Engineering Contradiction:
ImprovetemperatureVSAvoiddevice complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by incorporating an adjusting mechanism that enables precise positioning and angling of reflective mirrors. This dynamic adjustment capability ensures that light beams are effectively guided to the focusing lens, preventing temperature increase in the illumination system while maintaining reasonable device complexity through a straightforward adjustment design.

Inventive Principle:
Principle #15Dynamics

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 effectively enhances the illumination system's performance by improving light guidance and reducing power loss, leading to increased imaging quality and luminance, while addressing overheating issues caused by assembly errors.

Implementation Method 1

The light beams from the array of the solid-state light-emitting elements are reflected by the reflective mirrors and guided to the same focusing lens

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS9904159B2Illumination system
Publication Date: 2018.02.27 DELTA ELECTRONICS INC(CN)
  • US9904159B2 patent drawing
  • US9904159B2 patent drawing
  • US9904159B2 patent drawing

AI summary

An illumination system includes a first light source module and a first reflective mirror module. The first light source module includes plural first light sources for emitting plural first light beams, respectively. The first reflective mirror module includes at least one first reflective mirror, at least one first fixing structure, and at least one first adjusting mechanism. The first reflective mirror is located at a first optical axis of the plural first light sources. The at least one first fixing structure is used for fixing the first reflective mirror. The first adjusting mechanism is connected with the first fixing structure. By moving or rotating the first adjusting mechanism, a location and an angle of the first reflective mirror relative to the first optical axis are correspondingly changed, so that the first light beam is reflected by the first reflective mirror and guided along a specified optical path.