Some flashlights bug my eyes more when i use them. I prefer the light emited from this lumintop key ring flashlight and from my smartphones that have a similar patterned lens, Hexagon pattern on the mini flashlight and concentric circles on smart phone flashlight. Last picture is a cheap led light that has a clear lens. But the light feels harsher from the totally clear led light.
What is this semi clear / patterned, lens called so I can buy more lights like this.
by DigiSquid0
![[NLD] Acebeam T29 - Comparisons & Beamshots](https://www.edctips.com/wp-content/uploads/2026/01/ilkxt42oplgg1-770x515.jpg "[NLD] Acebeam T29 – Comparisons & Beamshots")
![[NLD] Acebeam T29 - Comparisons & Beamshots](https://www.edctips.com/wp-content/uploads/2026/01/qaa58ax3plgg1-770x515.jpg "[NLD] Acebeam T29 – Comparisons & Beamshots")
2 Comments
Those are called TIR lenses.
[https://en.wikipedia.org/wiki/Total_internal_reflection](https://en.wikipedia.org/wiki/Total_internal_reflection)
The Lumintop is a bead type, your phone seems to be a fresnel and the last (looks like a warsun T7) is a cob led .
Concentric circles is called a Fresnel lens, I’m not sure about that pattern.