Title:
反射形ランプ
Document Type and Number:
Japanese Patent JP4094054
Kind Code:
B2
Abstract:
The electric reflector lamp has a reflector body with a light-beam shaping surface which comprises a body of revolution of a branch of a parabola which has been tilted towards the optical axis of the light-beam shaping surface. The light-beam shaping surface has superimposed plane axial lanes of which the number in a first zone remote from the light emission window is half that in a second zone adjacent said window. The axial lanes give the light-beam shaping surface cross-sections which are regular polygons. A light source is positioned on the optical axis, while the focus is inside this light source. The lamp has a universal burning position, a good mixing of the generated light, and a comparatively high luminous flux in the beam.
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Inventors:
Marsen Efbertas Johannes Petrus
Application Number:
JP50858596A
Publication Date:
June 04, 2008
Filing Date:
August 11, 1995
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
F21V7/04; F21V7/06; F21V7/09; H01J5/02; H01J61/35; H01J61/86; H01K7/02
Domestic Patent References:
| JP4123009U | ||||
| JP1161512U | ||||
| JP6391111U | ||||
| JP54144091A | ||||
| JP845316A |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato
Kosaku Sugimura
Kazuaki Takami
Hiroshi Tokunaga
Yoshiyuki Iwasa
Shiro Fujitani
Kiyoshi Kuruma
Kazuyuki Tomita
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato
Kosaku Sugimura
Kazuaki Takami
Hiroshi Tokunaga
Yoshiyuki Iwasa
Shiro Fujitani
Kiyoshi Kuruma
Kazuyuki Tomita