US 12,433,729 B2
Dental light polymerization device
Rudolf Schmid, Eichenau (DE); Korbinian Gerlach, Gauting (DE); Stefan K. Welker, Geltendorf (DE); and Angelika Hofmann, Munich (DE)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Appl. No. 17/250,426
Filed by Solventum Intellectual Properties Company, Maplewood, MN (US)
PCT Filed Jul. 23, 2019, PCT No. PCT/IB2019/056297
§ 371(c)(1), (2) Date Jan. 20, 2021,
PCT Pub. No. WO2020/026075, PCT Pub. Date Feb. 6, 2020.
Claims priority of application No. 18186444 (EP), filed on Jul. 31, 2018.
Prior Publication US 2021/0282911 A1, Sep. 16, 2021
Int. Cl. A61C 13/15 (2006.01)
CPC A61C 19/004 (2013.01) [A61C 2204/002 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A dental light polymerization device, comprising an intra-oral tip portion and a handle portion, and further a polymerization light source and a light mixing element, wherein the polymerization light source comprises at least a first LED exhibiting a first light emission peak wavelength and a second LED exhibiting a second light emission peak wavelength, wherein the first and second LED each are configured for emitting visible light within a wavelength range of 380 nm to 495 nm, wherein the first and second light emission peak wavelength differ from each other by at least 10 nm, wherein the light mixing element is formed of a solid transparent body having a main body portion and an adjacent front end face extending directly from the main body portion, wherein the main body portion forms a rear end of the light mixing element and the front end face is a front end of the light mixing element, wherein the rear end forms a first diagonal dimension and the main body portion, adjacent the front end, forms a greater second diagonal dimension, and wherein the light mixing element is arranged with the rear end facing the polymerization light source and with the front end face facing away from the polymerization light source, and wherein light mixing element is encapsulated by a housing of the handle portion, the housing including a window with a transparent panel arranged between the light mixing element and the intra-oral tip portion.