ams announced the release of an XYZ “tri-stimulus” color sensor. The AS73211 extends the existing ams portfolio of TCS3430 and AS7261 true color sensors and addresses the requirements of high-end displays, spotlights and colorimeters.
A member of the ams JENCOLOR family of color sensors, the AS73211 provides filter-on-glass technology. It offers light and color measurements closely matching a typical human eye’s perception of light, as defined by the industry-standard CIE 1931 tri-stimulus model of human eye function.
The sensor measures color accurately at light levels from 0.4 lux up to 208 klux – a dynamic range of 250,000,000:1, enabling operation in widely varying lighting conditions, from moonlight to bright sunshine.
The AS73211 is designed for precise measurements of dark objects and materials, such as black pixels on a display screen, dark skin, black paint or soil, even in low light conditions. The sensor’s 24-bit integrated light-to-digital converter offers the ability to configure the conversion time in a range from 125µs to 16s, allowing users to adjust operation for balance between speed of measurement and precision.
The AS73211’s automatic power-down mode support use in low-energy and handheld applications.
Applications which will benefit from the high performance and small size of the AS73211 include:
- medical and high-end professional displays, for white color balancing and display color management
- spotlights, projection systems and video wall modules, for control of power LEDs
- professional hair and skin tone analyzers
- professional and industrial color picking and matching equipment
- aviation display and lighting controls – a single AS73211 can support feedback control over the entire output range from full brightness to deeply dimmed
The thermal characteristics of the filter mean that ams is able to qualify the AS73211 for operation over a temperature range of -40°C to 125°C. Internal compensation based on readings from the AS73211’s integrated temperature sensor ensure that the accuracy of color measurement is maintained over the entire operating temperature range.
For more information, visit ams website.