Adaptive Color Light Module for Low-Light Imaging and Night Vision
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Solution Overview
Problem
Existing light source modules in consumer electronic devices lack the flexibility to adjust illumination color and spatially vary brightness, which can be detrimental in low light conditions and affect night vision.
Innovation Solution
A light source module comprising an emitter array and an accompanying emitter, with a lens system to image and direct light of different colors, allowing selective color adjustment and spatial illumination variation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light source module provides illumination in low light conditions, then image capture quality is improved, but night vision is degraded
Solution Approach 1:
The light source module is segmented into multiple independent emitters with different color characteristics (white light emitters and red light emitters). This allows selective activation of specific emitters based on the imaging scenario, enabling the system to provide illumination while minimizing night vision impact by using red light when appropriate.
Solution Approach 2:
Different portions of the illumination field are illuminated with different colors. The red light emitters specifically illuminate areas where night vision preservation is critical, while white light emitters provide full-spectrum illumination where color accuracy is prioritized. This spatial differentiation of light quality addresses the contradiction between illumination effectiveness and night vision protection.
2Adaptability or versatility
If a light source module uses a single color of light, then the structure is simple, but adaptability to different imaging scenarios is limited
Solution Approach 1:
The emitter array is divided into multiple independent light-emitting elements with different color characteristics. Each emitter can be independently controlled, allowing the system to adapt to different imaging scenarios by selectively activating appropriate emitters, thus achieving high adaptability without requiring a completely redesign of the basic emitter structure.
Solution Approach 2:
The light source module is designed with multi-functional emitters that can serve different purposes. The same physical structure houses both white light emitters for general illumination and color-specific emitters for specialized scenarios, enabling a single device to perform multiple functions across diverse imaging conditions.
3Adaptability or versatility
If a light source module provides uniform illumination, then the structure is simple, but spatial variation in brightness cannot be achieved
Solution Approach 1:
The lens system is designed with spatially varying optical properties, where different regions of the lens direct light from different emitters to different areas of the illumination field. This creates non-uniform illumination patterns that can highlight specific regions or create gradient effects, achieving spatial variation in brightness through optical design rather than mechanical adjustment.
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
Provides adaptive color illumination that enhances image capture and reduces the impact on night vision by offering red light alongside white light, improving scene illumination and user navigation in low light settings.
Implementation Method 1
The lens includes a first portion positioned between the emitter array and the window, where the first portion is configured to image the emitter array onto a field of illumination
Implementation Method 2
The lens further includes a second portion positioned between the accompanying emitter and the window, where the lens is configured to direct the light emitted by the accompanying emitter to fill the field of illumination
Data Source
AI summary
Systems, apparatuses, and methods for light source modules for adaptive color adjustments are described. A light source module includes a housing having a window, an emitter array, an accompanying emitter, and a lens. The emitter array includes a plurality of emitters, each emitter configured to emit light having a first color through the window. The accompanying emitter is configured to emit light having a second color through the window. The lens includes a first portion and a second portion. The first portion is positioned between the emitter array and the window, and configured to image the emitter array onto a field of illumination. The second portion is positioned between the accompanying emitter and the window, and the lens configured to direct the light emitted by the accompanying emitter to fill the field of illumination.