Camera Color Temperature Control for Accurate Light Measurement
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Solution Overview
Problem
The existing camera systems face difficulties in accurately determining the amount of light for main emission during photography due to inappropriate color temperature of preliminary light emission, which affects light emitting efficiency and correct light reception.
Innovation Solution
A camera system that includes a light emission unit, an amount of emitted light control unit, and a color temperature control unit, which controls the color temperature of the illumination light based on ambient light color information during preliminary emission to match the color temperature of the main light emission, ensuring accurate light emission during photography.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the color temperature of preliminary light emission is not controlled, then the light emitting efficiency is high, but the amount of light reflected back from the photographic subject cannot be correctly obtained
Solution Approach 1:
The patent applies parameter changes by adjusting the color temperature of the preliminary light emission to match the color temperature of ambient light. This ensures that the sensor's light reception sensitivity remains consistent during both preliminary and main light emissions, enabling accurate measurement of the amount of light reflected back from the photographic subject.
Solution Approach 2:
The patent implements feedback by using the amount of light reflected back from the photographic subject during preliminary light emission to determine the amount of light to be emitted during main light emission. This feedback mechanism allows the system to automatically adjust and optimize the light emission parameters for accurate photography.
2Productivity
If the color temperature of preliminary light emission is controlled to match ambient light, then the light emission efficiency improves, but the device complexity increases
Solution Approach 1:
The patent changes the color temperature parameter of the preliminary light emission to match the color temperature of ambient light. This parameter adjustment optimizes the light emitting efficiency by ensuring consistent sensor response, while the control mechanism remains integrated within the existing camera system.
3Manufacturing precision
If the color temperature of main light emission is controlled to match preliminary light emission, then the photography quality improves, but the control complexity increases
Solution Approach 1:
The patent applies preliminary action by performing preliminary light emission first to measure the reflected light amount and determine the appropriate main light emission parameters. This preliminary measurement allows the system to pre-calculate the necessary controls for main light emission, ensuring consistent color temperature and improved photography quality.
Solution Approach 2:
The system uses feedback from the preliminary light emission measurement to automatically determine and control the main light emission parameters. This feedback loop ensures that the color temperature and light amount are optimally coordinated without requiring complex manual intervention.
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 allows for precise control of light emission, reducing concerns of excessive or insufficient light in photographs by matching the color temperature of preliminary and main light emissions, resulting in improved photography outcomes.
Implementation Method 1
the amount of light reflected back from the photographic subject during a preliminary emission of light
Implementation Method 2
a color temperature control unit that controls the color temperature of the illumination light during the preliminary light emission, based upon color information for ambient light
Implementation Method 3
a light emission unit that emits illumination light
Data Source
AI summary
A camera includes: a light emission unit that emits illumination light; an amount of emitted light control unit that, during photography using the illumination light, controls the amount of illumination light to be emitted during photography based upon the amount of light reflected back from the photographic subject during a preliminary emission of light; and a color temperature control unit that controls the color temperature of the illumination light during the preliminary light emission, based upon color information for ambient light.