What is the concentrating principle of LED flashlight ?

What is the concentrating principle of LED flashlight ?
Led lenses are widely used in the flashlight industry. Usually, different brands have different characteristics. In addition to the main illuminant, different concentrating methods will also bring different brightness and spot effects, and also form different styles of each brand.

So different What are the advantages and disadvantages of the concentrating method? What are the characteristics? Xiangshun Optics will share with you.

Several ways of concentrating LED flashlights

1: Lens condensing: use a lens designed with strict optical path to condense light.

Features: Small size, good convergence effect, but limited range of use, only suitable for LEDs with large divergence angles and small light-emitting cores.

2: Reflective cup concentrating: use the lens designed by the optical path to focus the light.

It can also be divided into smooth cups and orange peel cups. The light concentrating effect of the smooth cups is better, and the scattered light is less, but the spot effect is poor and uneven; the concentrating effect of the orange peel cups is worse than that of the same type of smooth cups , more floodlight, but the spot effect is significantly better than the smooth cup, more average.

Features: The size of the reflector can be freely designed, but the larger and deeper the reflector, the better the condensing effect and the worse the floodlight.

3: The LED itself condenses light: generally used for low-power LEDs.

Features: There is no need to design the optical path, only the optical design of the LED itself is used to condense the light, and the condensing effect is poor.

4: Other aggregation methods: such as optical fibers, which are rarely used in flashlights.

led flashlight lens

Concentrating characteristics of LED flashlights

1: Reflective cup concentrating: use the lens designed by the optical path to focus the light, which can be divided into smooth cups and orange peel cups. Uniform; the condensing effect of the orange peel cup is worse than that of the smooth cup of the same type, and the floodlight is more, but the spot effect is obviously better than that of the smooth cup, which is more uniform.

Features: Small size, good convergence effect, but limited scope of application, only suitable for LEDs with large divergence angles and small light-emitting cores.

2: Lens condensing: use a lens with a strict optical path design to condense the light

Features: The size of the reflector can be freely designed, but the larger and deeper the reflector, the better the condensing effect and the worse the floodlight. At present, most high-end domestic brand genuine strong light flashlights use this design, and some products of Wuyou flashlight are using

3: LED itself concentrating: generally used for low-power LEDs

Features: There is no need to design the optical path, only the optical design of the LED itself is used to condense the light, and the condensing effect is poor.

4: Other aggregation methods: such as optical fibers, which are rarely used in flashlights
LED flashlight lens
Different spotlights do not have absolute pros and cons. Different groups like different features. Each has its own advantages. So which one is your favorite and the best way to spotlight?

Xiangshun Optics (www.ledlensxs.com) has an experienced optical design and mold manufacturing R&D team, with ultra-precision mold manufacturing equipment and professional lens product injection molding equipment. With more than 20 years of design and manufacturing history, it can provide light distribution design for all light source brands.

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