Dual-Lamp Illumination System with Parallel Beam Combining

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Solution Overview

Problem

Conventional dual-lamp illumination systems suffer from overheating damage to burners, poor light condensing efficiency, and a large volume due to long optical paths and divergent light beams, making them unsuitable for modern electronic products that require compact and efficient lighting solutions.

Innovation Solution

The proposed illumination system uses two lamps with lampshades and reflectors to transform diverging light into parallel beams, employing reflectors and light covering members to absorb ultraviolet and infrared energy and reduce overheating, while optimizing the optical path length to enhance light intensity and compactness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If parallel light beams are formed using parabolic lampshades and reflectors, then illumination coverage is improved, but the optical path becomes too long causing light divergence and reduced intensity

Engineering Contradiction:
Improvelight intensityVSAvoidoptical path length
Core Design Contradiction:
Illumination intensityVSLength of stationary object

Solution Approach 1:

The patent divides the illumination system into multiple independent lamp units, each with its own parabolic lampshade and reflector assembly. This segmentation allows each unit to operate independently with optimized, shorter optical paths while collectively providing broad illumination coverage through multiple light sources positioned at different locations.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If lamps are arranged in opposite positions with a reflector between them, then combined light beam coverage is improved, but the system volume becomes too large

Engineering Contradiction:
Improveillumination coverage areaVSAvoidsystem volume
Core Design Contradiction:
Area of stationary objectVSVolume of stationary object

Solution Approach 1:

The patent merges multiple lamp units into a single integrated illumination system where multiple light sources are positioned closely together with shared reflector surfaces. This combining approach maintains broad illumination coverage while significantly reducing the overall system volume compared to separate opposite-position lamp arrangements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from a linear arrangement of lamps in opposite positions to a multi-dimensional configuration where multiple lamp units are positioned at different locations and orientations. This dimensional change allows the system to achieve wide coverage area while maintaining a compact volume through spatial optimization.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Illumination intensity

If parallel light beams directly illuminate the lamps again through the burners, then light transmission is maintained, but the burners suffer from overheat damage

Engineering Contradiction:
Improvelight transmissionVSAvoidburner reliability
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The patent introduces a heat-resistant intermediary layer or coating on the inner surface of the parabolic lampshade that acts as a thermal barrier. This intermediary protects the burner from direct exposure to intense light and heat while allowing light transmission through the lampshade structure, thereby maintaining both illumination intensity and burner reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

This solution reduces the risk of burner damage, improves light intensity through better condensing efficiency, and achieves a more compact design suitable for small and lightweight electronic products by combining parallel light beams effectively.

Implementation Method 1

The parabolic lampshades 114 and 124 are used to form the parallel light beams 112a and 122a

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 2

A portion of the parallel light beams 112a and 122a forms a combined light beam 1440 by reflecting from the reflection surfaces 132 and 134 of the reflector 130

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 3

uses the reflector and/or the light covering member to absorb a portion of energy of ultraviolet light and infrared light in the lampshade

Methodology Applied
Scientific EffectAbsorption (EM radiation): Absorption (EM radiation)

Data Source

PatentUS7367687B2Illumination system
Publication Date: 2008.05.06 AIXIN TECHNOLOGIES LLC
  • US7367687B2 patent drawing
  • US7367687B2 patent drawing
  • US7367687B2 patent drawing

AI summary

An illumination system is for providing a parallel illumination light beam. The illumination system includes two lamps, and each lamp includes a first lampshade, a burner and a reflector. The lampshade has a light outputting section. A first reflector is connected with the first lampshade, and a portion of the light outputting section is covered by the first reflector. A diverging light is provided by the burner. The diverging light is transformed into a parallel light beam by the lampshade and the first reflector, and the parallel light beam is outputted from a portion of the light outputting section without covering. The illumination system further includes at least one second reflector disposed between the lamps, on the optical path of at least one portion of the parallel light beam. The parallel light beams from the lamps are thereby combined into a parallel illumination beam by the second reflector.