Indicator

Details Indicator Indicator

2006-03-28

2006-03-28

Nguyen, Hung (Department: 2636)

Communications: electrical

Land vehicle alarms or indicators

External signal light system

C340S407100, C340S425500, C340S458000, C340S815500, C340S815540, C362S507000, C362S509000

Reexamination Certificate

active

07019631

ABSTRACT:
An indicator equipped with a polarized light splitter, which passes and reflects an un-polarized light irradiated from a light source and divides the polarized light into a p-polarized light whose oscillation direction of an electric field is parallel to an incidence plane and an s-polarized light whose oscillation direction of an electric field is perpendicular to the incidence plane. In this indicator, at least one of the p-polarized light and s-polarized light is emitted from the polarized light splitter as a horizontal polarized light whose oscillation direction of an electric field is substantially parallel to a ground.

REFERENCES:
patent: 3912920 (1975-10-01), Kubota
patent: 5535054 (1996-07-01), Shibuya
patent: 5995284 (1999-11-01), Vanderwerf
patent: 08-127297 (1996-05-01), None

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