METAL HALIDE LAMP

WIPO Patent Application WO/2012/093664

A1

A novel metal halide lamp for ultraviolet irradiation, which increases the emission of ultraviolet rays near the wavelength of 365 nm, is provided. This lamp is a metal halide lamp that mainly emits ultraviolet rays, and contains a noble gas and at least mercury (Hg) and an iron component in order to emit a strong spectrum in the ultraviolet range, particularly at a wavelength of 350 to 380 nm. The enclosed iron component contains iron iodide (FeI2) and iron bromide (FeBr2) as iron halide (FeX2), and metallic iron (Fe). Expressing each of the enclosed quantities as the enclosed quantity of metallic iron A, the enclosed quantity of iron iodide B, and the enclosed quantity of iron bromide C: the quantity of metallic iron A falls within a range of 0.5 (B + C) ≤ A ≤ 10.0 (B + C) mol/cm3; the quantity of iron halide (B + C) falls within a range of 1.0 × 10-7 ≤ (B + C) ≤ 4.5 × 10-7 mol/cm3; and the ratio of iron bromide to iron halide {C/(B + C)} falls within a range of {C/(B + C)} = 5 to 70%.

JP5306888

High pressure discharge lamp

ORITO HIDEMI (JP)
OHNO MASAYUKI (JP)
NISHIDA SADAHARU (JP)
NOGUCHI SACHIO (JP)
KANOMATA KAZUKI (JP)
UBUKATA KENJI (JP)

PCT/JP2012/050001

July 12, 2012

January 02, 2012

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IWASAKI ELECTRIC CO LTD (JP)
ORITO HIDEMI (JP)
OHNO MASAYUKI (JP)
NISHIDA SADAHARU (JP)
NOGUCHI SACHIO (JP)
KANOMATA KAZUKI (JP)
UBUKATA KENJI (JP)

H01J61/20

JP2002008588A	2002-01-11
JP2010129442A	2010-06-10
JPS5216887A	1977-02-08
JPS5044675A	1975-04-22
JPH02288152A	1990-11-28
JPH10162774A	1998-06-19

TAKAHASHI TOSHIHIRO (JP)
Takahashi 要泰 (JP)

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