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What is a light sensor?
A type of a sensor that measures the amount of light that it receives or the surrounding light conditions.
total search74 articles
2014-06-19 Vishay outs AEC-Q101-qualified proximity, ambient light sensor
The VCNL4020X01 combines an IR emitter, a photo-pin-diode for proximity, an ambient light detector, a signal processing IC and a 16bit ADC in a 4.8 x 2.3 x 0.8mm rectangular lead-less package
2013-11-18 Vishay announces gesture control sensor board
The board consists of a Vishay's VCNL4020 integrated proximity and ambient light sensor and two of Vishay's VSMF2890RGX01 infrared diodes mounted on either side of the sensor.
2008-05-07 Single-chip serve as proximity/light sensor
Capella Microsystems has released what it claims to be the first single-chip proximity and ambient light sensor.
2009-11-06 Sensor uses I²C to report light levels
The ambient light sensor enables the adjustment of display brightness to improve readability.
2005-12-30 Sensor matches spectral sensitivity with human eye
Intersil Corp's ISL29001 ambient light sensor provides 15-bit effective resolution while rejecting 50Hz and 60Hz flicker caused by artificial light sources.
2008-07-24 Save battery life with ambient light sensors
Active optical sensors can dramatically increase the range and usefulness of ambient light sensors
2009-04-24 Rail-to-rail amp extends light sensor's resolution, range
Learn how rail-to-rail amplifiers can overcome limitations on analogue circuitry introduced by single-supply operation.
2011-01-17 Optimize ambient light sensor for use in app with black glass
Know how a calibration/compensation scheme corrects a light sensor's lux readings in the presence of different light sources.
2006-11-06 New light sensor emulates human eye
Aimed at consumer and automotive applications, the new AMIS-74980x light sensor from AMI Semiconductor emulates the human eye in that its output is proportional to ambient light, adjusting a display's brightness and contrast accordingly.
2012-11-29 Lighting controller measures light, tracks time
Know how to design an intelligent lighting controller that senses and measures the ambient light level with an ambient light sensor.
2007-06-16 Light sensors improve mobile device functionality
This article discusses the use of integrated circuitry with light sensors to allow on-chip calibration, filtering and increased resolution in ambient-light sensing for laptops and cell phone displays
2010-03-18 Light sensors detect behind translucent materials
The digital ambient light sensor family is designed for touchscreen phones, laptops, desktop computers and monitors to conserve energy or maintain information privacy when the user is not present.
2008-12-04 Light sensors advance automotive apps
Read about the basics of ambient light sensing and its advantages in automotive applications
2012-04-19 Light sensor touts smart daylight harvesting
Austriamicrosystems debuts the TSL4531, an ambient light sensor device family that features a direct lux output with a wide dynamic sensitivity range of 3lux to 2,20,000lux.
2014-01-29 Light sensor boosts display brightness in mobile devices
Intersil's red, green and blue (RGB) light sensor aims to optimize screen brightness and improve resolution, battery life and color quality for mobile device displays.
2009-04-30 Light sensor apps
Read about light sensors and their inclusion in multitudes of consumer products from night lights to cell phones
2013-08-01 Light and proximity sensors set for double-digit growth
Samsung and Apple are the top buyers of light sensors, accounting for more than 50 per cent of light sensor revenue in 2012.
2010-04-09 IR light sensor suits limited space apps
TT electronics OPTEK Technology has developed a small surface mount-packaged photo light sensor which features data rates up to 250kBaud.
2010-09-14 Interface code implementation for the MAX9635 ambient light sensor
This app note describes the proper use of interrupt output functionality in the MAX9635 ambient light sensor for LCD backlight management in portable devices like smart phones and tablets.
2011-07-26 Integrated proximity, light sensor touts smaller size
Sharp's GP2AP020A00F proximity sensor with integrated ambient light sensor offers extremely low level light detection in a 4x2x1.2mm package size targeted at use in mobile devices.
2011-08-23 Extending portable displays' battery life with ambient light sensing
Read about the issues that designers might encounter when using ambient light sensors in portable devices
2006-07-03 Ambient light sensor imitates a human eye's sensitivity curve
Osram Opto Semiconductors Inc. is offering the first ambient light sensor for mobile devices that accurately matches or imitates the sensitivity curve of the human eye.
2011-05-18 Ambient light sensor automates brightness adjustment
Renesas debuts the PH5551A2NA1, a compact digital ambient light sensor aimed at compact and precise automatic brightness adjustment or automatic on/off circuits for digital household appliances and electronics.
2012-05-21 Triangulation sensor for high 13.9kHz switching
iC-Haus' iC-LO is a triangulation position sensor with ambient light suppression for up to 13.9kHz switching frequencies.
2010-01-22 Tiny reflective sensor offers 10-25.4mm detection
Optek's OPB733TR reflective object sensor incorporates a lensed IR LED and phototransistor elements to collimate the light beam for enhanced resolution at a detection range from 10mm to 25.4mm.
2014-02-25 The panoptic LED light: Gaining vision more than is needed
The tremendous pace of technological advancement has afforded LED lighting systems the capacity to send and collect information on various segments, sparking the issue of security and privacy.
2013-08-14 Squeezed light produced using silicon
Caltech's new system, which is miniaturized on a silicon microchip, generates the ultraquiet light in a way that can be more easily adapted to a variety of sensor applications.
2012-10-25 Sensor hub gets Windows 8 certified
Freescale's 12-axis Xtrinsic sensor platform includes an MCU controlling a 3-axis accelerometer, 3-axis magnetometer, precision altimeter, pressure, temperature and light sensors, and gyroscopes.
2013-05-15 Peratech outs ultra-sensitive touch sensor
The QTC Ultra Sensor can respond to light touches even through steel or glass and is geared for domestic, commercial and industrial use.
2010-06-25 Overview of sensor signal paths
This tutorial explains the sensor signal chain for the most popular sensor transducer types for pressure, temperature, current, light and proximity sensing.
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