Illumination device for vehicles

• US 5,422,792 A
• Filed: 03/21/1994
• Issued: 06/06/1995
• Est. Priority Date: 04/28/1993
• Status: Expired due to Term

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Neumann, Rainer
• Primary Examiner(s): Lazarus, Ira S.
• Assistant Examiner(s): Sember, Thomas M.
• Application Number:
  US08/215,369
• Time in Patent Office: 442 Days
• Field of Search: 362/32, 362/284, 362/283, 362/61, 362/80, 362/324, 362/322, 362/319, 362/277, 362/321, 385/19, 385/20, 385/21, 385/22, 385/23, 385/16, 385/901
• US Class Current: 362/554
• CPC Class Codes: B60Q 1/0011 with light guides for distributing the light between several lighting or signalling devices
• CPC Class Codes: F21S 41/24 Light guides
• CPC Class Codes: F21S 41/43 characterised by the shape thereof
• CPC Class Codes: F21S 41/675 by moving reflectors
• CPC Class Codes: F21S 41/692 Shields, i.e. screens not creating an image meant to be projected
• CPC Class Codes: G02B 6/0008 the light being emitted at the end of the fibre
• CPC Class Codes: Y10S 385/901 Illuminating or display apparatus

Abstract

An illumination device for a vehicle comprises at least one light generator with a light source, a plurality of light conductors receiving light from the light source, a plurality of light distributing units connected with the light conductors and operating for different illuminating functions, and a screening device associated with at least one of the light distributing units and switchable between a passive position in which the screening device permits supplying light in the light conductor associated with the one light distributing unit to the light distributing unit or permits exiting of light from the light conductor associated with the one light distributing unit, and an active position in which the screening device screens light of the light conductor associated with the one light distributing unit from entering the one light distributing unit or exiting the one light distributing unit. The screening device in the active position is reflective and deflects light exiting the associated light conductor and impinging on it for supplying in a light distributing unit serving for another illumination function.

Claims

1. An illumination device for a vehicle, comprising at least one light generator with a light source;

a plurality of light conductors receiving light from said light source;

a plurality of light distributing units connected with said light conductors and operating for different illuminating functions; and

a screening device associated with at least one of said light distributing units and switchable between a passive position in which light in a light conductor associated with said one light distributing unit operating for one illuminating function enters or exits said one light distributing unit operating for one illuminating function, and an active position in which said screening device screens light of the light conductor associated with said one light distributing unit operating for one illuminating function so that light of the light conductor association with said one light distributing unit operating for one illuminating function cannot enter said one light distributing unit or exit said one light distributing unit operating for one illuminating function, said screening device in said active position being reflective and deflecting light exiting the light conductor associated with said one light distributing unit and impinging on the screening device for supplying light in a light distributing unit operating for another illuminating function.

2. An illumination device as defined in claim 1;

and further comprising a reflecting element arranged so that said screening device in said active position deviates light exiting from the associated light conductor and impinging on the screening device to said further reflection element from which the light is supplied to said light distributing unit serving for another illumination function.

3. An illumination device as defined in claim 1;

and further comprising a further light conductor arranged so that said screening device in its active position couples light exiting from the associated light conductor and impinging on the screening said further light conductor which is connected with the light distributing unit serving for another illuminating function.

4. An illumination device as defined in claim 1, wherein said screening device is arranged near said light distributing units.

5. An illumination device as defined in claim 1, wherein said screening device is arranged between said light generator and said distributing units.

6. An illumination device as defined in claim 1, wherein said screening device is formed as a moving reflection element which in said passive position is arranged outside a beam path of the light exiting the associated light conductor and in said active position is arranged in a beam path of the light exiting the associated light conductor.

7. An illumination device as defined in claim 1, wherein said screening device is arranged in a beam path of the light exiting the associated light conductor and in said passive position is light permeable while in said active position it is light impermeable and reflective.

8. An illumination device as defined in claim 7, wherein said screening device is formed as a stationary screen and is switchable between said passive position and said a active position under the action of an electric voltage.

9. An illumination device for a vehicle, comprising at least one light generator with a light source;

a plurality of light conductors receiving light from said light source;

a plurality of light distributing units connected with said light conductors and operating for different illuminating functions; and

a screening device associated with at least one of said light distributing units and switchable between a passive position in which light in a light conductor associated with said one light distributing unit operating for one illuminating function enters or exits said one light distributing unit operating for one illuminating function, and an active position in which said screening device screens light of the light conductor associated with said one light distributing unit operating for one illuminating function so that light of the light conductor association with said one light distributing unit operating for one illuminating function cannot enter said one light distributing unit or exit said one light distributing unit operating for one illuminating function, said screening device in said active position being reflective and deflecting light exiting the light conductor associated with said one light distributing unit and impinging on the screening device for supplying light in a light distributing unit operating for another illuminating function, said light distributing unit with which said screening device being associated serves for an illumination function high-light, said screening device deflecting light for supplying in a light distributing unit serving for an illumination function low beam.

10. An illumination device for a vehicle, comprising at least one light generator with a light source;

a plurality of light conductors receiving light from said light source;

a plurality of light distributing units connected with said light conductors and operating for different illuminating functions; and

a screening device associated with at least one of said light distributing units and switchable between a passive position in which light in a light conductor associated with said one light distributing unit operating for one illuminating function enters or exits said one light distributing unit operating for one illuminating function, and an active position in which said screening device screens light of the light conductor associated with said one light distributing unit operating for one illuminating function so that light of the light conductor association with said one light distributing unit operating for one illuminating function cannot enter said one light distributing unit or exit said one light distributing unit operating for one illuminating function, said screening device in said active position being reflective and deflecting light exiting the light conductor associated with said one light distributing unit and impinging on the screening for supplying light in a light distributing unit operating for another illuminating function, said light distributing unit with which said screening device being associated serves for an illumination function fog light, said screening device deflecting light for supplying in a light distributing unit serving for an illumination function low beam.