Heads-up display arrangement for vehicle

• US 5,198,797 A
• Filed: 04/12/1991
• Issued: 03/30/1993
• Est. Priority Date: 05/11/1990
• Status: Expired due to Term

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Daidoji, Shigetoshi
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): Popovici, Dov
• Application Number:
  US07/684,099
• Time in Patent Office: 718 Days
• Field of Search: 340/425.5, 340/461, 340/462, 340/705, 340/980, 340/525, 334/86, 353/13, 353/14, 455/154, 455/158, 455/154.1, 455/154.2, 455/158.1, 455/158.2, 455/158.3, 455/158.4
• US Class Current: 340/425.5
• CPC Class Codes: B60K 2360/334 Projection means
• CPC Class Codes: G02B 2027/0165 associated with a head-down display
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G02B 5/28 Interference filters

Abstract

A heads up display arrangement for a vehicle comprises a combiner arranged on a front window panel, and a projector arranged for projecting a value of a frequency received by a radio receiver. During operation of an automatic tuning mechanism of the radio receiver, the value of received frequency is not outputted to the projector.

Claims

1. A heads-up display arrangement for a vehicle having a front window panel, and a radio receiver with an automatic tuning mechanism, comprising:

a combiner arranged on the front window panel;

a projector optically connected to said combiner, said projector projecting on said combiner a value provided thereto representing a frequency received by the radio receiver; and

means for canceling provision of said value of frequency to said projector while the automatic tuning mechanism is in operation.

2. A heads-up display arrangement as claimed in claim 1, wherein said combiner includes a metallic oxide coating having a light transmittance smaller than that of the front window panel for a light having a predetermined wavelength.

3. A method of controlling a heads-up display arrangement for a vehicle having a radio receiver with an automatic tuning mechanism, the heads-up display including a projector, the method comprising the steps of:

providing to the projector for display a value of frequency received by the radio receiver while the automatic tuning mechanism is not in operation, and

canceling display of a value of frequency while the automatic tuning mechanism is in operation.

4. In an automotive vehicle having a front window panel, and an instrument panel:

a radio receiver with an automatic tuning mechanism arranged within the instrument panel;

a combiner arranged on the front window panel;

a projector optically connected to said combiner, said projector projecting a value of frequency received by said radio receiver, and

a microcomputer connected to said radio receiver and said projector, said microcomputer executing a control sequence controlling said projector, said microcomputer including;

means for providing to said projector said value of frequency received by said radio receiver while said automatic tuning mechanism is not in operation; and

means for canceling provision to said projector of said value of frequency while the automatic tuning mechanism is in operation.