Field of illumination of LED rings
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- jiazhangwang
- Posts: 13
- Joined: Mon May 23, 2022 2:42 pm
Field of illumination of LED rings
Hi, we have ordered some NeoPixel Rings 12/16/24*5050 RGB. For our project, we need to know the field of illumination. Appreciate for any help.
- adafruit_support_bill
- Posts: 88090
- Joined: Sat Feb 07, 2009 10:11 am
Re: Field of illumination of LED rings
The LEDs approximate a Lambertian emitter. That means that the intensity if proportional to the cosine of the angle from the central axis of the LED. In other words, if the intensity directly in front of the LED is 100%, it will be about 70% at 45 degrees off axis and decrease to 0% at 90 degrees.
Please be positive and constructive with your questions and comments.