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Borofloat® Lens

Borofloat® Lens

Borofloat® Lens

Manufactured by Schott, this glass is Flashlightlens.com's workhorse. This glass is similar to Pyrex® in that it is a borosilicate type of material and able to withstand extreme thermal shock. That's where the similarities end. Unlike Pyrex®, this glass is manufactured using Schott's Microfloat process. This produces a piece of glass that's virtually flawless and has mirror-like surface quality. Since 2002, when Flashlightlens.com introduced this type of glass to the flashlight world, many manufacturers have seen the benefits of Borofloat and now make this glass standard on their lights. It's outstanding mechanical, thermal, and optical properties make it a great choice for those not concerned with achieving that extra 5% of light transmittance that UCL® provides. This lens is also the preferred choice for those building "extreme" lights that produce high amounts of heat.

Light transmittance: 94%
Substrate: Microfloat borosilicate
Coatings: None
Thermal durability: Outstanding

Application & Spec Chart

Borofloat® inventory levels

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Item Options
LDF stands for "Light Diffusion Film." We take GE brand Lexan® that has a slight texture to it and, using an optical adhesive, apply it to one side of the lens. This results in more of a flood-like beam pattern. It will smooth out the worst beam. The overall light output is almost unchanged - it’s just spread out more. Be warned though, this coating will kill the throw of the light. Only add this coating if you like a really smooth beam and lots of side-spill. We recommend placing the LDF side of the lens toward the bulb for protection against scratching.

Diffusion Lens ComparisonDiffusion Lens Comparison

NOTE: LDF does not hold up very well in UV light applications.

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Add LDF to my lens - $3.00

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