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US 2003/0198058 A1Published application
Field electron emitter and a display device using the same
AssigneeNone recorded
InventorsYoshikazu Nakayama, Lujun Pan, Akio Harada
Life of this patent
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AssigneeNone recorded
InventorsYoshikazu Nakayama, Lujun Pan, Akio Harada
Estimating the term…
A vehicle lamp of which lamp chamber is formed by a lamp body and an outer lens, and a light source and an inner lens are provided inside the lamp chamber, with the inner lens functioning to selectively transmit the complementary color to the color of the outer lens and a desired color and being disposed between the light source and the outer lens. A half mirror is provided on the inner lens so as to face the outer lens.
A vehicle lamp comprised of a lamp body and an outer lens which define a lamp chamber provided therein with a light source and an optical filter member, said optical filter member selectively transmitting a light of complementary color to a color of said outer lens and a light of a desired color and being disposed between said light source and said outer lens, wherein
A vehicle lamp comprised of a lamp body and an outer lens which define a lamp chamber provided therein with a light source and an optical filter member, said optical filter member selectively transmitting a light of complementary color to a color of said outer lens and a light of a desired color and being disposed between said light source and said outer lens, wherein
Dependencies are inferred from the claim text.
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Details: associated optical elements
Electric discharge tubes or discharge lamps
Term end not estimated
1. Field of the Invention
The present invention relates to a vehicle lamp (hereinafter referred to as “lamp”) that changes the color between when it is lit and when it is unlit.
2. Prior Art
FIG. 1 shows a lamp in cross section according to the first embodiment of the present invention;
FIG. 2 shows the light path of an external light entering the inside of the lamp of the first embodiment;
FIG. 3 shows a lamp in cross section according to the second embodiment of the present invention;
Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
The lamp 10 of the first embodiment of the present invention shown in FIG. 1 has a similar structure as the conventional lamp shown in FIG. 8.
More specifically, the lamp chamber is defined by an outer lens 12 colored in pink smoke and a lamp body 14 integrally formed with a reflector 13 that has a parabolically shaped surface. A white light source 16 is disposed inside the lamp chamber, and an inner lens 18 colored in yellowish-green as an optical filter member is interposed between the light source 16 and the outer lens 12. Diffusion steps 19 for light distribution control, such as fish-eye steps, are formed on the backside (inner) surface of the outer lens 12. The lamp 10 of FIG. 1 differs from the conventional lamp in that the inner lens 18 is provided with a half mirror 20 on an outer lens 12 side (surface) thereof. In other words, the half mirror 20 is disposed on the surface of the inner lens 18 that faces the outer lens 12.