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US5255162A Expired / Lapsed US ⏱️ 0.0 years remaining

Lighting device for a grille of a car stereo

Assignee: Pioneer Corp
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Filing: 1992-05-06
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Granted: 1993-10-19
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Expires: 2012-05-06
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Abstract

Abstract A grille of a car stereo has a recess, an operation flap pivotally mounted in the recess, an opening for inserting a sound recording medium formed at a position behind the flap, and a liquid crystal display panel provided in the flap. The lighting device has a light source provided behind the grille and a light introducing plate, so that the liquid crystal display panel and the opening are lighted by light transmitted from the light source through the light introducing plate.

Inventors

  • 👤 Masashi Kawamoto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 17:11
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/02; H03J1/04; H03J1/044

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 162 words
A lighting device for a grille of a car stereo, the grille having a recess, an operation flap pivotally mounted in the recess, an opening for inserting a sound recording medium formed at a position behind the flap and in the recess, a liquid crystal display panel provided in the flap, and a plurality of buttons for operating the car stereo, the lighting device comprising: a first light source provided behind the operation flap; a first light introducing plate having a rear end and provided in the flap and disposed behind the liquid crystal display panel, the rear end of the first light introducing plate being positioned adjacent the first light source when the flap is closed, whereby the liquid crystal display panel is lighted by light transmitted from the first light source through the light introducing plate; and at least one second light introducing plate provided adjacent the first light source and behind the buttons so as to light the buttons.
Claim 2
Dependent Claim 162 words
A lighting device for a grille of a car stereo, the grille having a recess, an operation flap pivotally mounted in the recess, an opening for inserting a sound recording medium formed at a position behind the flap and in the recess, a liquid crystal display panel provided in the flap, and a plurality of buttons for operating the car stereo, the lighting device comprising: a first light source provided behind the operation flap; a first light introducing plate having a rear end and provided in the flap and disposed behind the liquid crystal display panel, the rear end of the first light introducing plate being positioned adjacent the first light source when the flap is closed, whereby the liquid crystal display panel is lighted by light transmitted from the first light source through the light introducing plate; and at least one second light introducing plate provided adjacent the first light source and behind the buttons so as to light the buttons.
Claim 3
Dependent Claim 48 words
A lighting device according to claim 1, wherein the first light introducing plate includes a horizontal portion and a vertical portion, a rear end surface of the horizontal portion is disposed adjacent the first light source, and the vertical portion is disposed adjacent the liquid crystal display panel.
Claim 4
Dependent Claim 20 words
A lighting device according to claim 1, wherein the grille is detachably mounted on a body of the car stereo.
Claim 5
Dependent Claim 16 words
A lighting device according to claim 1, wherein the first light source is a cold-cathode tube.
Claim 6
Dependent Claim 26 words
A lighting device according to claim 1, wherein the operation flap is detachably mounted on a holder pivotally mounted on a body of the car stereo.
Claim 7
Dependent Claim 21 words
A lighting device according to claim 2, wherein the vertical portion of the first light introducing plate has light diffusing means.
Claim 8
Dependent Claim 57 words
A lighting device according to claim 2, wherein a width of the rear end surface of the horizontal portion of the first light introducing plate is smaller than a width of a front end surface of the vertical portion, and a height of the rear end surface is smaller than a height of the front end surface.
Claim 9
Dependent Claim 176 words
A car stereo system, comprising: a grille having a recess with an opening defined therein for inserting a sound recording medium; an operation flap pivotally mounted in the recess of said grill, the opening for the sound recording medium being formed at a position behind said operation flap, said flap including a liquid crystal display panel and a plurality of buttons for operating the car stereo system; a first light source mounted with said grille and positioned behind the said operation flap; a first light introducing plate mounted with said operation flap and having a rear end alignably positioned so as to be adjacent the light source behind the liquid crystal display panel when said operation flap is closed, whereby the liquid crystal display panel is lighted by light transmitted from said first light source through said light introducing plate, and the opening is lighted by said first light source; and at least one second light introducing plate provided adjacent said first light source and behind the plurality of buttons so as to light the buttons.
Claim 10
Dependent Claim 176 words
A car stereo system, comprising: a grille having a recess with an opening defined therein for inserting a sound recording medium; an operation flap pivotally mounted in the recess of said grill, the opening for the sound recording medium being formed at a position behind said operation flap, said flap including a liquid crystal display panel and a plurality of buttons for operating the car stereo system; a first light source mounted with said grille and positioned behind the said operation flap; a first light introducing plate mounted with said operation flap and having a rear end alignably positioned so as to be adjacent the light source behind the liquid crystal display panel when said operation flap is closed, whereby the liquid crystal display panel is lighted by light transmitted from said first light source through said light introducing plate, and the opening is lighted by said first light source; and at least one second light introducing plate provided adjacent said first light source and behind the plurality of buttons so as to light the buttons.
Claim 11
Dependent Claim 49 words
A car stereo system according to claim 8, wherein said first light introducing plate includes a horizontal portion and a vertical portion, a rear end surface of the horizontal portion is disposed adjacent said first light source, and the vertical portion is disposed adjacent the liquid crystal display panel.
Claim 12
Dependent Claim 21 words
A car stereo system according to claim 8, wherein said grille is detachably mounted on a body of the car stereo.

References Cited (Backward Citations)

US2770712A Cited
US3242328A Cited
US3514940A Cited
US4322780A Cited
US4747672A Cited
US4771368A Cited
US4755035A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-10-18 1997-04-19 1997-10-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-10-18 2001-04-19 2001-10-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-10-18 2005-04-19 2005-10-19 $7700.00 Window Closed / Lapsed

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