The luminescence properties of CaBPO 5: Eu, Tb phosphor and the sensitization of Ce 3+ were investigated. The CaBPO 5: Eu, Tb phosphors were synthesized in the ambient air and the emission spectra of Eu 3+ ...The luminescence properties of CaBPO 5: Eu, Tb phosphor and the sensitization of Ce 3+ were investigated. The CaBPO 5: Eu, Tb phosphors were synthesized in the ambient air and the emission spectra of Eu 3+ , Tb 3+ and Eu 2+ were observed in the phosphor. The result shows that there is electron transfer between conjugate rare earth ions. Sensitization of Ce 3+ can improve the intensity of emission of Tb 3+ and Eu 2+ . A novel trichromatic lamp phosphor codoped with Eu 3+ Tb 3+ in matrix CaBPO 5 is then predicted.展开更多
The process described here is well at the heart of the appearance of pigmentary materials and their interactions with light. It is indeed based on the property of colored materials to reflect, in a selective way, the ...The process described here is well at the heart of the appearance of pigmentary materials and their interactions with light. It is indeed based on the property of colored materials to reflect, in a selective way, the colored radiations of light. The innovation is here based on a more subtle and more complete process, using the trichromy, i.e., all the possibilities of the white light, which is split in three primary radiations： red^een--blue. One can, indeed, animate a pigmentary surface by the alternate projection of these three colors, and thus reveal three different images on the same support, or create a motion effect. However, in this process, the weakness of bhie, compared to green and red, might constitute an obstacle. But that will be compensated by the use of fluorescent colors, instead of ordinary colors. This process may provide very spectacular applications in the fields of lighting, architecture, design, scenography, booths, display windows, etc.. We shall propose a step-to-step approach.展开更多
The study on trichromatic optical fiber radiation thermometers is especially useful for the non-contact accurate temperature measurement of those materials with the emissivities changing dramatically with wavelength.O...The study on trichromatic optical fiber radiation thermometers is especially useful for the non-contact accurate temperature measurement of those materials with the emissivities changing dramatically with wavelength.On the basis of the trichromatic thermometry principle,the operation wavelengths of the thermometer are selected properly so as to compensate the emissivity influence on measurement result effectively. Using 1×3 branching fiber coupler and narrow band filter significantly improves the instrument reliability.The instrument is self-calibrated,multi -functional and easy touse due to the embodied microcontroller and some other techniques.展开更多
基金Project supported by the Key Laboratory of Inorganic Synthesis of Jilin University(990 2)the Education Department of Guangdong Province
文摘The luminescence properties of CaBPO 5: Eu, Tb phosphor and the sensitization of Ce 3+ were investigated. The CaBPO 5: Eu, Tb phosphors were synthesized in the ambient air and the emission spectra of Eu 3+ , Tb 3+ and Eu 2+ were observed in the phosphor. The result shows that there is electron transfer between conjugate rare earth ions. Sensitization of Ce 3+ can improve the intensity of emission of Tb 3+ and Eu 2+ . A novel trichromatic lamp phosphor codoped with Eu 3+ Tb 3+ in matrix CaBPO 5 is then predicted.
文摘The process described here is well at the heart of the appearance of pigmentary materials and their interactions with light. It is indeed based on the property of colored materials to reflect, in a selective way, the colored radiations of light. The innovation is here based on a more subtle and more complete process, using the trichromy, i.e., all the possibilities of the white light, which is split in three primary radiations： red^een--blue. One can, indeed, animate a pigmentary surface by the alternate projection of these three colors, and thus reveal three different images on the same support, or create a motion effect. However, in this process, the weakness of bhie, compared to green and red, might constitute an obstacle. But that will be compensated by the use of fluorescent colors, instead of ordinary colors. This process may provide very spectacular applications in the fields of lighting, architecture, design, scenography, booths, display windows, etc.. We shall propose a step-to-step approach.
文摘The study on trichromatic optical fiber radiation thermometers is especially useful for the non-contact accurate temperature measurement of those materials with the emissivities changing dramatically with wavelength.On the basis of the trichromatic thermometry principle,the operation wavelengths of the thermometer are selected properly so as to compensate the emissivity influence on measurement result effectively. Using 1×3 branching fiber coupler and narrow band filter significantly improves the instrument reliability.The instrument is self-calibrated,multi -functional and easy touse due to the embodied microcontroller and some other techniques.
