Abstract: Disclosed herein are coating compositions that may include at least one urethane (meth)acrylate oligomer having a molecular weight between about 2,000 g/mol and about 50,000 g/mol and at least one cycloaliphatic (meth)acrylate. The coating compositions may also optionally include at least one photo-initiator, adhesion promoter, pigment, dye and/or plasticizer. The coating compositions may be hardened, after application, by curing by exposure to radiant energy, by exposure to electron beam radiation, by exposure to heat, by exposure to chemicals and combinations thereof. Upon hardening, the coating composition typically has two phases, a soft phase which has a Tg between ?50° C. and 0° C. and a hard phase which has a Tg between 60° C. and 120° C. Methods of using the coating compositions are also described.

Abstract: An inner coupling tubular type electrodeless lamp comprises a glass bulb, an amalgam, and a power coupler. The glass bulb includes an external portion and an inner portion. A gas discharging cavity that is annularly airtight is defined by an envelopment of the external portion and the inner portion. A coupling cavity is defined in the inner portion. The power coupler includes a radiating post, a ferrite core, and a winding sequentially situating from an interior to an exterior thereof. The power coupler is disposed in the coupling cavity. Two ends of the coupling cavity are intercommunicated with each other as well as the exterior. The external portion of the glass bulb adopts the elongated tube. Wherein, a length of the ferrite core of the power coupler is not smaller than a half length of the coupling cavity. A length of the winding is measured from one-fifth to four-fifth of the length of the coupling cavity to evenly distribute an electromagnetic field.

Abstract: An inner coupling tubular type electrodeless lamp comprises a glass bulb, an amalgam, and a power coupler. The glass bulb includes an external portion and an inner portion. A gas discharging cavity that is annularly airtight is defined by an envelopment of the external portion and the inner portion. A coupling cavity is defined in the inner portion. The power coupler includes a radiating post, a ferrite core, and a winding sequentially situating from an interior to an exterior thereof. The power coupler is disposed in the coupling cavity. Two ends of the coupling cavity are intercommunicated with each other as well as the exterior. The external portion of the glass bulb adopts the elongated tube. Wherein, a length of the ferrite core of the power coupler is not smaller than a half length of the coupling cavity. A length of the winding is measured from one-fifth to four-fifth of the length of the coupling cavity to evenly distribute an electromagnetic field.