A luminescent material is disclosed with emission in the near infrared wavelength range, the luminescent material including Sc.sub.1-x-yA.sub.yRE:Cr.sub.x, wherein MO=P.sub.3O.sub.9, BP.sub.3O.sub.12, SiP.sub.3O.sub.12; A=Lu, In, Yb, Tm, Y, Ga, Al, where 0≤x≤0.75, 0≤y≤0.9. A wavelength converting structure including the luminescent phosphor is also disclosed.

A luminescent material is disclosed with emission in the near infrared wavelength range, the luminescent material including Sc.sub.1-x-yA.sub.yRE:Cr.sub.x, wherein MO=P.sub.3O.sub.9, BP.sub.3O.sub.12, SiP.sub.3O.sub.12; A=Lu, In, Yb, Tm, Y, Ga, Al, where 0≤x≤0.75, 0≤y≤0.9. A wavelength converting structure including the luminescent phosphor is also disclosed.

The present invention relates to the field of forehearth frits, pearls, and/or concentrates for use in glass compositions. In particular, the present invention provides a system of forehearth frits, pearls, and/or concentrates that is capable of parting a fluorescent effect to a glass composition by adding a fluorescent glass fit, pearl or concentrate in the forehearth of a glass furnace, to form fluorescent glass and a method of using the fluorescent system of forehearth frits, pearls, and/or concentrates.

A luminescent material can include an element or an interstitial site that provides a hole trap in the luminescent material; a first dopant that provides a first electron trap in the luminescent material; and a second dopant that provides a second electron trap in the luminescent material, wherein the second dopant is a relatively shallower electron trap as compared to the first dopant. In an embodiment, a ratio of the first dopant to the second dopant is in a range of 10:1 to 100:1 on an atomic basis. In another embodiment, a ratio of the first dopant to the second dopant is selected so that luminescent material has a lower average value for a departure from perfect linearity in a range of 5 keV to 20 keV that is less to other luminescent materials of the same base compound. The luminescent material may not be a rare earth halide.

A luminescent material is disclosed with emission in the near infrared wavelength range, the luminescent material including Sc.sub.1-x-yA.sub.yRE:Cr.sub.x, wherein MO=P.sub.3O.sub.9, BP.sub.3O.sub.12, SiP.sub.3O.sub.12; A=Lu, In, Yb, Tm, Y, Ga, Al, where 0x0.75, 0y0.9. A wavelength converting structure including the luminescent phosphor is also disclosed.

The present invention relates to the field of forehearth fits, pearls, and/or concentrates for use in glass compositions. In particular, the present invention provides a system of forehearth frits, pearls, and/or concentrates that is capable of parting a fluorescent effect to a glass composition by adding a fluorescent glass fit, pearl or concentrate in the forehearth of a glass furnace, to form fluorescent glass and a method of using the fluorescent system of forehearth fits, pearls, and/or concentrates.

Sunscreen additives for enhancing vitamin D production are provided herein. A method includes selecting phosphor materials to incorporate into zinc oxide particles, wherein the phosphor materials are capable of carrying out an up-conversion process whereby two or more photons absorbed by the zinc oxide particles and/or the phosphor materials within a first wavelength range are emitted as at least one photon within a second wavelength range. The method also includes incorporating the selected phosphor materials into the zinc oxide particles. A composition includes zinc oxide particles suspended within a medium of a sunscreen composition, and phosphor materials incorporated into the zinc oxide particles, wherein the phosphor materials are capable of carrying out an up-conversion process whereby two or more photons absorbed by the zinc oxide particles and/or the phosphor materials within a first wavelength range are emitted as at least one photon within a second wavelength range.

Sunscreen additives for enhancing vitamin D production are provided herein. A method includes selecting phosphor materials to incorporate into zinc oxide particles, wherein the phosphor materials are capable of carrying out an up-conversion process whereby two or more photons absorbed by the zinc oxide particles and/or the phosphor materials within a first wavelength range are emitted as at least one photon within a second wavelength range. The method also includes incorporating the selected phosphor materials into the zinc oxide particles. A composition includes zinc oxide particles suspended within a medium of a sunscreen composition, and phosphor materials incorporated into the zinc oxide particles, wherein the phosphor materials are capable of carrying out an up-conversion process whereby two or more photons absorbed by the zinc oxide particles and/or the phosphor materials within a first wavelength range are emitted as at least one photon within a second wavelength range.