Ask / Submit

What is the white light that always is on? [answered]

asked 2014-10-08 06:46:42 +0300

dp gravatar image

updated 2014-10-23 16:34:46 +0300

eric gravatar image


I just noticed something peculiar. I was taking a picture of my phone to send to some friends, and I see this white light on the top right of the phone. However, the light can only be seen through a camera lense.

Has anyone else noticed this and can describe the purpose of this light?

edit retag flag offensive reopen delete

The question has been closed for the following reason "the question is answered, an answer was accepted" by dsilveira
close date 2014-10-08 14:35:01.820530

1 Answer

Sort by » oldest newest most voted

answered 2014-10-08 06:56:29 +0300

simo gravatar image

updated 2014-10-08 21:13:34 +0300

There's proximity sensor in that corner which normally shows a blinking white/reddish light in certain circumstances, like when viewed through another camera. Interesting that you discovered it as white

edit flag offensive delete publish link more



Actually @dp was looking at the light through another camera. IR LEDs render as white light on camera sensors. An easy way to check if your TV remote works is to look at it through your camera phone; you'll see a white flash from the IR LED.

I just tried to see this light myself, but I can't find it. Curious.

Sanjay Mehta ( 2014-10-08 09:07:40 +0300 )edit

A recently asked question by me has a link to a video where you can see the proximity sensor light blinking. In that video it looks more white than red.

Okw ( 2014-10-08 14:27:56 +0300 )edit

Question tools



Asked: 2014-10-08 06:46:42 +0300

Seen: 519 times

Last updated: Oct 08 '14