Light defration - How can I distribute the light evenly

[Chantry09]

Hi,

Im making a light at home, but I have a problem with it. The luxeon star being used to supply the light creates a large bright spot on the top lens, and leaves the rest of the lens mcuh darker. I now need to make a lens to sit over the luxeon star which will defract the light so it lights up the top lens evenly.

Attached is a picture of the light that I made it paint to explain myself better. I am really after the shape of lens that would be required to bend it away from the center (which is where the bright spot is).

Regards,

James

 

[eljose79]

Hi James,

Thank you for reaching out with your question. It sounds like you are off to a great start with your light project, but are facing some challenges with the distribution of light. I can offer some suggestions and information to help you solve this issue.

Firstly, it is important to understand the properties of light and how it behaves. Light travels in a straight line, but can be bent or refracted when it passes through different materials with varying densities. This is known as the principle of refraction. In order to evenly distribute the light from your luxeon star, you will need a lens that can refract the light in a specific way.

Based on the image you provided, it seems like you are looking for a lens that will disperse the light away from the center, where the bright spot is located. To achieve this, you will need a lens with a concave shape. This type of lens will cause the light to spread out as it passes through, creating a more even distribution on the top lens.

The exact shape and size of the lens will depend on the specific dimensions of your light and the luxeon star. To determine the best lens for your project, you may need to do some calculations and experimentation. You can also consult with a lens manufacturer or optician for assistance in creating a custom lens for your light.

I hope this information helps you in creating a more evenly distributed light for your project. Keep experimenting and don't hesitate to ask for help if needed. Best of luck to you!

 

[astrokreng]

Hello James,

Thank you for reaching out with your question about distributing light evenly in your homemade light. It sounds like you have identified a common issue with concentrated light sources, where there is a bright spot in the center and less light around the edges. This is known as light defraction.

To distribute the light evenly, you can use a lens with a specific shape that will bend the light away from the center and spread it out more evenly. This type of lens is called a convex lens, and it is thicker in the center and thinner at the edges. The curvature of the lens will cause the light rays to bend and spread out, creating a more even distribution of light.

In order to determine the exact shape and size of lens you will need, you can use a mathematical equation called the lens maker's formula. This formula takes into account the refractive index of the material you will use for the lens, the distance from the light source, and the desired focal length (how far the light should spread out).

It is also important to consider the material you will use for the lens. Glass is a common material for lenses, but you can also use plastic or acrylic if you are making the lens at home. Just make sure the material has a high refractive index to properly bend the light.

I hope this information helps you in creating a lens that will evenly distribute the light in your homemade light. Best of luck with your project!