Selective LED Flash Array for Targeted Capture Region Illumination

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional LED flashes in portable devices require a large number of LEDs to cover a wide capture region, making it difficult to fill light for specific detail positions and leading to inefficient power consumption.

Innovation Solution

An elliptically arranged LED array combined with a micro motor and algorithm operation to determine and illuminate only the required LEDs based on the capture region, optimizing illumination for specific detail positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If conventional LED flashes are arranged in concentric circles to cover a large range of capture region, then the coverage area is improved, but the number of LEDs required increases and power consumption rises

Engineering Contradiction:

Improvecapture region coverageVSAvoidnumber of LEDs

Core Design Contradiction:

Area of stationary objectVSQuantity of substance

Solution Approach 1:

The LED array is divided into multiple independently controllable LED groups arranged in an elliptical pattern, where each group can be selectively activated based on the capture region requirements, rather than using a uniform concentric circle arrangement that requires all LEDs to be activated for full coverage

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system activates only the necessary portion of the LED array (partial action) based on the analyzed capture region, rather than activating all LEDs uniformly. The elliptical arrangement provides sufficient coverage with fewer LEDs by concentrating illumination where needed

Inventive Principle:

Principle #16Partial or excessive action

2Area of stationary object

If conventional LED flashes use a large number of LEDs to cover wide capture region, then the coverage area is improved, but the power consumption increases

Engineering Contradiction:

Improvecapture region coverageVSAvoidpower consumption

Core Design Contradiction:

Area of stationary objectVSUse of energy by moving object

Solution Approach 1:

The control system activates only the necessary portion of the LED array (partial action) based on the analyzed capture region, rather than activating all LEDs uniformly. This selective activation significantly reduces power consumption while maintaining adequate coverage

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The system dynamically adjusts the illumination parameters by selecting which specific LED groups to activate based on the capture region analysis, optimizing the balance between coverage area and power consumption for different shooting scenarios

Inventive Principle:

Principle #35Parameter changes

3Area of stationary object

If conventional LED flashes illuminate all LEDs to cover large range, then the coverage area is improved, but the ability to fill light for specific detail positions deteriorates

Engineering Contradiction:

Improvecapture region coverageVSAvoidlight filling for specific detail positions

Core Design Contradiction:

Area of stationary objectVSManufacturing precision

Solution Approach 1:

Different LED groups within the elliptical array can be selectively activated to provide localized illumination for specific detail positions within the capture region, rather than uniform illumination from all LEDs. This allows optimized lighting for particular areas of interest

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The LED array is segmented into multiple independently controllable groups, enabling selective activation of specific segments to illuminate particular detail positions while maintaining overall coverage, thus achieving both broad coverage and localized detail enhancement

Inventive Principle:

Principle #1Segmentation

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

Reduces power consumption by illuminating only the necessary LEDs while effectively covering a large capture region, suitable for flash capture under various ambient brightness conditions.

Implementation Method 1

Conventional light emitting diode (LED) flashes are mostly arranged in concentric circles

Methodology Applied

Scientific EffectLight emitting diode (LED): Light Emitting Diode

Data Source

PatentUS20260095673A1Flash and flash illumination method

Publication Date: 2026.04.02 GUANGZHOU LUXVISIONS INNOVATION TECH LTD

AI summary

The disclosure provides a flash, including: a light source module, including an LED array and used to emit light; an image capture device; a light source controller, electrically connected to the light source module and used to control a light emitting state of the light source module; a main controller, electrically connected to the image capture device and the light source controller. The main controller is configured to: enable the image capture device to capture a first image; analyze the first image to determine an LED irradiation region; determine multiple first LEDs that need to be turned on in the LED array according to the LED irradiation region; and send a light source control signal to the light source controller, so that the light source controller sends a control current, and turns on the first LEDs.