Abstract: A method of making a waveguide is disclosed. The method comprises providing an optical core having a first surface and a second surface, applying a cladding material to the first and the second surface of the optical core to form a first cladding layer on the first surface of the optical core and a second cladding layer on the second surface of the optical core, and applying a light absorbing composition including a light absorbing material and a first adhesive polymer on at least one of the first cladding layer and the second cladding layer to form a light absorbing layer. The first adhesive polymer is selected from the group consisting of urethane, epoxy, polyester, acrylic adhesives and mixtures thereof.

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of three phosphors, namely, Barium Magnesium Aluminate, Cerium Gadolinium Magnesium Borate, and Calcium Halophosphor.

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at ends of the electric lamp. The electrodes generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A tri-phosphate layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The tri-phosphate layer has yttrium oxide, cerium magnesium aluminate, and barium-magnesium aluminate. One of the electrodes is mounted on a short mount along with a mercury capsule, while the other electrode is mounted on a long mount. The long mount has a horizontal portion and a flared portion which is near the lamp end. The horizontal portion is coated with a layer of aluminum oxide to reduce mercury consumption.

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of three phosphors, namely, blue luminescing Blue Halophosphor (BH), red-luminescing Cerium Gadolinium Magnesium Borate (CBTM), and 3000K-luminescing Calcium Halophosphor, also referred to as Warm White (WW).

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of four phosphors, namely, blue luminescing Blue Halophosphor (BH), red-luminescing Yittrium Oxide (YOX), 3000K-luminescing Calcium Halophosphor, also referred to as Warm White (WW) and green-luminescing Zinc Silicate (ZS).

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of four phosphors, namely, blue luminescing Blue Halophosphor (BH), red-luminescing Yittrium Oxide (YOX), 3000K-luminescing Calcium Halophosphor, also referred to as Warm White (WW) and green-luminescing Zinc Silicate (ZS).

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of three phosphors, namely, blue luminescing Blue Halophosphor (BH), red-luminescing Cerium Gadolinium Magnesium Borate (CBTM), and 3000K-luminescing Calcium Halophosphor, also referred to as Warm White (WW).

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of three phosphors, namely, Barium Magnesium Aluminate, Cerium Gadolinium Magnesium Borate, and Calcium Halophosphor.