The shape and size of an optical lens significantly impact the amount of light that is transmitted, which in turn affects the Lumen values. For example, a larger lens allows more light to enter, leading to a higher Lumen output because a larger lens provides a larger surface area for light to enter, which results in more light being transmitted through the lens.
The curvature of the lens surface also affects the Lumen values. A lens with a curved surface can bend light in a specific direction, allowing more light to pass through the lens. This results in a higher Lumen output than a flat lens, which does not bend light and results in less light being transmitted through the lens.
The material used in the optical lens also plays a role in determining the Lumen values. Glass lenses are more efficient at transmitting light than plastic lenses, which can absorb some of the light passing through. This is due to the difference in refractive indices between glass and plastic lenses. The refractive index of a material is a measure of how much light is bent as it passes through the material. Glass has a higher refractive index than plastic, which means that more light is distorted as it passes through glass lenses, resulting in a higher Lumen output.
Finally, the design of the optical lens also affects the Lumen values. A lens designed to spread light in a specific direction will result in a higher Lumen output than a lens that disperses light in all directions. This is because the lens is designed to direct sunlight in a specific order, which allows more light to reach the target area and increases the Lumen output.
The angle of the lens does have an impact on the light output and the emitting distance and area.
A narrow lens angle means the light will be focused into a smaller area, leading to a longer emitting distance but a smaller emitting area because the light is concentrated in a smaller space, which allows it to travel farther before spreading out.
On the other hand, a wider lens angle will result in a shorter emitting distance but a larger emitting area because the light is spread over a larger area, which reduces the distance it can travel before spreading out.
It’s essential to consider the angle of the lens when selecting lighting for a specific application, as it affects the light output and the emitting distance and area. By choosing the right angle, you can control the spread of light and achieve the desired lighting effects.