Light Meter

Light Meter


_▒▓▒_ Light Meter _▒▓▒_
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Professional light intensity (lux) meter for your device.
It measures illumination levels in lux.

Features:
───────
■ direct reading in lux
■ 0 to 1000lux in 2 ranges
■ up to 300000lux in ICS+
■ automatic range change
■ support for neutral filters
■ 5% max error (device dependent)
■ predefined and custom calibration
■ sensor linearity correction option
■ alternative display in fc (foot-candles)
■ display of light color temperature in K
(available only on supported devices)
■ realistic vintage analog look
■ tablet support
■ 18 case skins
■ free

NOTE:
─────
This app requires devices with a light sensor. It uses native light sensor data acquisition that gives accurate and instant light intensity reading. This type of native data acquisition is available for many supported devices.

Other devices are also supported by the built-in compatibility mode but the accuracy and the speed of light intensity reading may be limited and custom calibration is required for correct reading under compatibility mode.

Custom calibration procedures are described on the following page:

http://trajkovski.net/lmeter/support.html

Also, on some devices the light sensor may not be linear, not continuous and measuring errors will occur or the maximum measuring range may be limited. This is not app's fault.

This app also provides a light color temperature measurement in K (degrees Kelvin) that is only supported on devices employing color light sensor. On all other devices the display shows n/a (not available).

Recent changes:
V2.2 changes: Bugfixes and improvements.
Add to list
Free
73
3.7
User ratings
1733
Installs
100,000+
Concerns
0
File size
3028 kb
Screenshots
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About Light Meter
_▒▓▒_ Light Meter _▒▓▒_
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Professional light intensity (lux) meter for your device.
It measures illumination levels in lux.

Features:
───────
■ direct reading in lux
■ 0 to 1000lux in 2 ranges
■ up to 300000lux in ICS+
■ automatic range change
■ support for neutral filters
■ 5% max error (device dependent)
■ predefined and custom calibration
■ sensor linearity correction option
■ alternative display in fc (foot-candles)
■ display of light color temperature in K
(available only on supported devices)
■ realistic vintage analog look
■ tablet support
■ 18 case skins
■ free

NOTE:
─────
This app requires devices with a light sensor. It uses native light sensor data acquisition that gives accurate and instant light intensity reading. This type of native data acquisition is available for many supported devices.

Other devices are also supported by the built-in compatibility mode but the accuracy and the speed of light intensity reading may be limited and custom calibration is required for correct reading under compatibility mode.

Custom calibration procedures are described on the following page:

http://trajkovski.net/lmeter/support.html

Also, on some devices the light sensor may not be linear, not continuous and measuring errors will occur or the maximum measuring range may be limited. This is not app's fault.

This app also provides a light color temperature measurement in K (degrees Kelvin) that is only supported on devices employing color light sensor. On all other devices the display shows n/a (not available).

Recent changes:
V2.2 changes: Bugfixes and improvements.

User reviews of Light Meter
is incompatible with Samsung Galaxy S
Jan 17, 2011
Tested on Milestone 2 A953 - doesn´t work.
Jan 7, 2011
Android Market Comments
A Google User
4 days ago
Calibration Value for Note 4. For Samsung Note 4 What is the calibration value for ; (1) Sensor calibration value (2) Sensor linearity index (3) Color calibration value (4) Color linearlity index
A Google User
5 days ago
worked well on Galaxy S2, not on S5 (5.0).. Unfortunately...
A Google User
Feb 10, 2015
Love it! Thanks.
A Google User
Feb 3, 2015
John This is a great app.detects light and operates just fine.I had built a simple meter myself using a voltage meter and photocell to pick up light variations.same thing's here.camera sees light and measures intensity.I want to try infrared.
A Google User
Jan 30, 2015
Good app for measuring light...