40mm Plano PMMA Optical Lens , Spotlight COB Led Lens 25 / 38 Degree

40mm Plano PMMA Optical Lens , Spotlight COB Led Lens 25 / 38 Degree

LEDs Need to Focus

High power LEDs are constantly improving and becoming smart options for a wide range of applications. As we have stated above, for a lot of these applications, such as interior spot/down lighting, street lighting, architectural lighting and spot lighting, the emitter and primary optic on their own cannot deliver enough intensity to the target surface.

• We dove into emitters output above but another way of describing it is that emitters give off a Lambertian light distribution.
• This basically means that the brightness to an observer is the same, regardless of the observers position. If you have ever seen a bare emitter light up, you can see this instantly.
• Even if you are far to the side, you can still see that the light source is extremely bright, it will probably even bother your eyes to look at.
• The problem is that this light is just thrown out there with nothing harnessing the rays.
• Optical efficiency is determined by measuring the ratio of light collected after the optic and dividing by the total amount of light without an optic directly at the LED source.
• The simple answer is yes. Carclo optics uses a technology called total internal reflection (TIR), so there is light loss during the collimation process.

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1. Typical spatial distribution is what manufacturers use to describe the light coming from an LEDs primary optic.
2. This basically means the shape or spread of the light from the center of the diode. As we talked about earlier, LEDs face in one direction, so imagine a line running straight down from the center.

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