Camera Illumination Device Real-Time Color Temperature Adjustment

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Solution Overview

Problem

Conventional illumination devices for photography require preparatory photographing to set the color temperature, leading to time consumption and potential loss of shooting opportunities due to object movement, and cameras face challenges in achieving desired light emission amounts during actual photography.

Innovation Solution

A camera system with an LED light emission unit that progressively changes the color temperature of illumination light in real-time, allowing photographers to select the desired color and light emission pattern through a user-friendly interface, enabling flexible and timely photography.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If preparatory photographing is performed to set the color temperature of the flash, then the color temperature can be accurately set, but photographing takes time and shooting opportunities may be lost

Engineering Contradiction:
Improvecolor temperature setting accuracyVSAvoidphotographing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The camera performs preparatory photographing and flash color temperature setting in advance before the actual shooting moment. The flash color temperature is determined through preparatory imaging and stored for immediate use during actual photographing, eliminating the need for real-time adjustment and thus resolving the time loss issue while maintaining accurate color temperature setting.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If the light emission amount of the flash is automatically changed, then the camera can adapt to different conditions, but it becomes difficult for the photographer to achieve the desired light emission amount

Engineering Contradiction:
Improvelight emission adaptationVSAvoidlight emission control
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The flash light emission amount is designed to dynamically change according to the distance between the camera and the subject. The control unit automatically adjusts the flash output based on detected distance information, providing adaptive light emission that matches different shooting scenarios while maintaining photographer control through automatic adjustment rather than manual intervention.

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

Enables user-friendly and prompt photography by allowing real-time adjustment of illumination color and light emission patterns, enhancing the capture of desired images and reducing the likelihood of missed shooting opportunities.

Implementation Method 1

an LED light emission unit (70) that emits illumination light for photographing

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Data Source

PatentEP2244463B1Illumination device for imaging and camera
Publication Date: 2015.10.07 NIKON CORP
  • EP2244463B1 patent drawingFigure 1A~1B
  • EP2244463B1 patent drawingFigure 2
  • EP2244463B1 patent drawingFigure 3A~3B

AI summary

It is possible to provide a user-friendly camera. Provided is an illumination device for emitting illumination light for photographing by a camera including: a light emission unit which can emit lights of a plurality of different colors and/or a plurality of different light emission amounts as the illumination light; and a light emission control unit which controls the light emission unit so as to continuously emit the illumination light while changing the color and/or the light emission amount as the time elapses, independently of photographing by the camera.