Raindrop sensor

Details Raindrop sensor Raindrop sensor

2007-12-18

2007-12-18

Epps, Georgia (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S573000

Reexamination Certificate

active

11213851

ABSTRACT:
A raindrop sensor includes a light-emitting element, a light-receiving element and a light guide body. The light-emitting element and the light-receiving element face a transparent panel. The light guide body, which is mounted on the transparent panel, includes an input lens, an input side dividing surface, an output lens and an output side dividing surface. The input lens collimates light emitted by the light-emitting element to form an input side collimated light beam. The output lens receives the collimated light beam, which is collimated by the input lens and is reflected by a reference surface of the transparent panel, to which the raindrop attaches. The output lens converges the reflected collimated light beam toward the light-receiving element. An intersection between an imaginary extension of the input side dividing surface and an imaginary extension of the output side dividing surface is located on the reference surface of the transparent panel.

REFERENCES:
patent: 4701613 (1987-10-01), Watanabe et al.
patent: 5278425 (1994-01-01), Bendicks et al.
patent: 5323637 (1994-06-01), Bendicks et al.
patent: 5391891 (1995-02-01), Wiegleb et al.
patent: 5498866 (1996-03-01), Bendicks et al.
patent: 5543923 (1996-08-01), Levers et al.
patent: 5572017 (1996-11-01), Veltum et al.
patent: 5661303 (1997-08-01), Teder
patent: 5898183 (1999-04-01), Teder
patent: 6232603 (2001-05-01), Nelson
patent: 6262407 (2001-07-01), Teder
patent: 6507015 (2003-01-01), Maeno et al.
patent: 2003/0160158 (2003-08-01), Ishino et al.
patent: 19830120 (1999-02-01), None

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