Dental light with dichroic and infrared filters

作者: Ernest Davey , Conrad Edward Kowalski , Peter M Coombs

DOI:

关键词:

摘要: A fixture for dental illumination, in which an elliptical reflector and light source is used with a gate projection lens, these being set enclosing canister the emerging through infrared filter path of rays to absorb unwanted heat radiation, dichroic on surface lens facing correct light-rendering index emitted light. Without any filter, neither nor visible, color rendering from device 97.5. When added, this drops 88.0, but addition visible-light brings back 97.5, very good.

参考文章(1)
Gunther Franz, Seitz Ernst Otto, Operating table lamp ,(1954)