
Bracket led
open-ephys/onix-fmc-host
FMC board to acquire from ONIX headstages and breakout boards
BIVAR
3mm Dome Lens, Single Station Right Angle Lightpipe Height 0.100 in. (2.54mm)
The SLP3-150-100-R is an uncategorised made by BIVAR. 3mm Dome Lens, Single Station Right Angle Lightpipe Height 0.100 in. (2.54mm).
PCBKit's library has its footprint (OptoDevice:Lightpipe_Bivar_SLP3-150-100-R, from KiCad's library), ready for a KiCad board. 3 open-source boards in 1 repository on GitHub use it.
The library has no symbol for this part yet.

open-ephys/onix-fmc-host
FMC board to acquire from ONIX headstages and breakout boards

open-ephys/onix-fmc-host
FMC board to acquire from ONIX headstages and breakout boards

open-ephys/onix-fmc-host
FMC board to acquire from ONIX headstages and breakout boards
Yes. the footprint OptoDevice:Lightpipe_Bivar_SLP3-150-100-R, both drawn on this page. PCBKit places them on a board for you when you design with it.
Parts like it in the library: the SLP3-150-150-F by BIVAR, the SLP3-150-300-F by BIVAR and the SLP3-150-450-R by BIVAR. Check their datasheets: a part that fits the footprint may still differ in its ratings.
3 boards in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.