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Color sensor device and method for color sensor calibration

一种颜色传感器、校准数据的技术，应用在颜色测量装置、测量装置、使用电辐射探测器进行颜色测量等方向，能够解决颜色滤光器频谱曲线颜色匹配函数不匹配等问题

Active Publication Date: 2018-09-21
AUSTRIAMICROSYSTEMS AG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, for example, the color filter spectral curve does not match the standard color matching function of the CIE standard

Method used

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  • Color sensor device and method for color sensor calibration
  • Color sensor device and method for color sensor calibration
  • Color sensor device and method for color sensor calibration

Examples

Experimental program
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Embodiment Construction

[0040] figure 1 The overall scheme of the implementation of the color sensor device is depicted. The color sensor device includes a color sensor 1, a processing unit 2, a memory 3, a control unit 4 and an interface 5.

[0041] The color sensor 1 further includes an array of photosensitive elements. In this particular embodiment, the array of photosensitive elements includes a first photodiode 11, a second photodiode 12, a third photodiode 13 and a fourth photodiode 14. The first photodiode 11, the second photodiode 12, and the third photodiode 13 are covered by a first filter, a second filter, and a third filter (not shown), respectively. The bandpass of the first filter, the second filter, and the third filter are adjusted so that the first filter, the second filter, and the third filter pass only certain wavelength bands of light. For example, the first filter has a bandpass of red light in the visible electromagnetic spectrum, the second filter has a bandpass of green light i...

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Abstract

This invention relates to a colour sensor arrangement and to a method for colour sensor calibration. A colour sensor arrangement comprises a colour sensor (1) arranged to generate at least a first channel signal (CH1) being indicative of a colour of light incident on the colour sensor (1). A processing unit (2) is connected to the colour sensor (1) and arranged to generate a tuple of colour signals (R, G, B) by processing the at least first channel signal (CH1). A memory (3) is connected to the processing unit (2) and a control unit (4) is connected to the processing unit (2) and to the memory (3). Furthermore, the control unit (4) is arranged to receive calibration data (M) relating the tuple of colour signals (R, G, B) to a calibrated tuple of colour signals (X, Y, Z) and arranged to store said calibration data (M) by means of the memory (3). An interface (5) is connected to the processing unit (2) and comprises an interface terminal (51).

Description

Technical field [0001] The present invention relates to a color sensor device and a method for color sensor calibration. Background technique [0002] Color sensing for the LED market is an emerging technology, so companies are considering incorporating solutions into their investment portfolios. On the contrary, the LED market is a fairly mature market with various manufacturers, including LED module manufacturers, LED engine manufacturers, lamp manufacturers, smartphone manufacturers, flat-panel TV manufacturers, notebook computer manufacturers, etc. . These manufacturers follow performance standards established by multiple organizations for LED component manufacturers and lamp manufacturers, etc., including ANSI / ANSLG, CIE, IES, and NEMA. Many customers express that they want to have a color sensor that can support high accuracy (for example, Δu'v' of 0.001 to 0.002), and the Δu'v' represents a very strict device-to-device tolerance. Given that, for example, every μw cm- 2 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/51G01J3/46G01J3/50G01J3/02
CPCG01J3/0297G01J3/0213G01J3/462G01J3/465G01J3/505G01J3/513
Inventor 格伦·李
Owner AUSTRIAMICROSYSTEMS AG
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