You can adjust the height of the light source and those bulbs have a beam angle as narrow as 10°, usually around 40°, getting it glare-free seems trivial.
Mirrors, either glass or polished metal, work fairly well for reading lamps, see Castiglioni's Gibigiana.
This one seems to use some sort of coated specialty glass.
You can adjust the height of the light source and those bulbs have a beam angle as narrow as 10°, usually around 40°, getting it glare-free seems trivial.
Mirrors, either glass or polished metal, work fairly well for reading lamps, see Castiglioni's Gibigiana.
This one seems to use some sort of coated specialty glass.
https://vimeo.com/242368762