Understanding the Basics of LED Lenses
Tuesday, May 2, 2017

Most people are familiar with LED light. The benefits of LED usage are phenomenal.   They are energy efficient, consuming 90% less energy than incandescent bulbs, and are long lasting.  Consumers and businesses alike have been implementing a transition to LED in everything from TVs, to billboards, to ads on public transportation.   The LED Display has become a part of our daily visual landscape.  Even so, they come with their own technical challenges.

The primary optic for an LED only gives directional light 180 degrees.  Because it is too broad of a light for most applications, the LED light begins to lack intensity over distance.  To alter the radius and get a more focused intensity, it is necessary to add a secondary lens and/or reflectors.

Consider light moving in parallel rays.  A convex lens has a surface that bulges outward and will make rays converge at a specific spot, a focal point.  A concave lens has a surface that curves in, making those parallel lines curve outward, away from a central point.  Focused LED light can have a secondary optic placed on it called TIR lenses.  TIR lenses fit over the dome top of the LED.  They combine the benefits of a lens and a reflector.  Taking the light beam in, and reflecting it back in a manner similar to the function of a concave lens that sends the rays outward and apart, rather than converging.

When coupled with a lens to project the light emitted from an LED, it is not limited by a 180 degrees.  Once a secondary lens is in place, the LED can provide the same element of lighting function as the traditional incandescent bulbs that naturally emit a 360 degree light.

Dedicated to being an industry leader, Greenlight Optics have the optical engineering capabilities to develop custom LED illumination modules to meet your system requirements.  With a specialized expertise in the LED industry and its relationships we can help you with numerous applications such as:  area lighting, medical applications, instrumentation, transportation lighting, machine vision illumination, projection displays, and stage lighting.  Contact us today to utilize our expertise to meet your company’s needs.


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Blog Categories

  • General Interest
    • 08/17/2018 - Importance of Prototyping
    • 07/20/2018 - Projection Technology Enables
    • 06/15/2018 - Structured Light Projection En
    • 02/16/2018 - Design and Production of Optic
    • 01/26/2018 - Discovering the Revolutionary
    • 09/02/2017 - The Measure of Metrology
    • 08/01/2017 - What is a laminar flow bench?
    • 07/01/2017 - World Class Optical Design
    • 05/02/2017 - Understanding the Basics of LE
    • 11/14/2016 - What is ISO 9001?
    • 08/22/2016 - Current and Future Uses of DLP
    • 07/14/2016 - Use of Lasers in Medical Techn
    • 06/15/2016 - How Lasers will Help You Get B
    • 05/12/2016 - Why Photographers Love OLED Sc
    • 04/17/2016 - Ultra-Precision Machine Techno
    • 03/15/2016 - Future Global Demand for Surgi
    • 11/03/2015 - The Man Behind the Light-Emitt
    • 10/09/2015 - A Few More Approaches to Diamo
    • 09/21/2015 - Inside a Few Approaches to Dia
    • 08/20/2015 - The Device that Spurred the Cr
    • 07/08/2015 - What Does it Mean? The Final F
    • 06/23/2015 - What Does it Mean? Even More A
    • 05/22/2015 - What Does it Mean? Answers Beh
    • 04/13/2015 - Red Light, Green Light: How Tr
    • 03/13/2015 - What Does it Mean? The Answers
    • 02/12/2015 - What You May Have Missed with
    • 01/07/2015 - What Can Be Developed with Opt
    • 12/16/2014 - The Development of LEDs and Wh
    • 11/13/2014 - More Facts About Other Greenli
    • 10/06/2014 - A World Record-Breaking Laser
    • 09/17/2014 - An Inside Look at the Maser
    • 08/12/2014 - The 411 on LEDs
    • 07/08/2014 - Invention of the Laser
    • 06/10/2014 - Laser Pointers: Colors and Use
    • 05/21/2014 - How LEDs Appear Brighter to Ou
    • 04/02/2014 - Let There Be Light! The Boomin
    • 03/18/2014 - Practical Applications: Medica

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Greenlight Optics is an optical systems engineering and manufacturing company specializing in projection displays, LED and laser illumination, imaging systems, plastic optics, and the integration of optics with electrical and mechanical systems.

The Greenlight Optics team brings a combined 250+ years of experience designing, developing, and manufacturing optical systems for consumer and professional markets.

We are passionate about enabling new optical applications and providing outstanding service to our customers.
Greenlight Optics is a 2016 Inc. 5000 honoree.  Number 2041 on the list of fastest growing private US companies.

July 2017: Greenlight Optics completes ISO 9001:2015 certification. Greenlight Optics has been ISO 9001 certified since 2014.

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