A lamp includes a lamp vessel, an incandescent body arranged in the lamp vessel, and current supply conductors connected to the incandescent body. The incandescent body is configured to emit a radiation spectrum including a visible portion and an infrared portion. An outer envelope around the lamp vessel has a reflective film adapted to transmit a first part of the visible portion and a second part of the infrared portion, the second part being greater than the first part.

 
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> Abrasives for copper CMP and methods for making

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