Virtual car operating panel projection

• US 6,161,654 A
• Filed: 05/13/1999
• Issued: 12/19/2000
• Est. Priority Date: 06/09/1998
• Status: Expired due to Term

• Current Assignee: Otis Elevator Company (Otis Worldwide Corp.)
• Original Assignee: Otis Elevator Company (Otis Worldwide Corp.)
• Inventors: Sirigu, Gerard, Lejon, Xavier
• Primary Examiner(s): SALATA, ANTHONY J
• Application Number:
  US09/311,813
• Time in Patent Office: 586 Days
• Field of Search: 187/391, 187/393, 187/395, 187/396, 187/397, 187/399, 187/388, 340/815.42, 340/815.79, 359/189, 359/144, 359/154
• US Class Current: 187/391
• CPC Class Codes: B66B 1/461 characterised by their shape or profile
• CPC Class Codes: B66B 3/00 Applications of devices for indicating or signalling operating conditions of elevators
• CPC Class Codes: B66B 3/008 Displaying information not related to the elevator, e.g. weather, publicity, internet or TV

Abstract

The invention concerns a device for displaying a virtual image, particularly of the control panel of an elevator cabin. The device includes a projector for projecting at least the virtual image of an elevator control panel from or near the cabin ceiling (13) onto a wall surface (9) of the cabin, in an appropriate position so that the virtual control elements (27) of the panel are recognized as such by the operator and by a control sensor for activating the control of the elevator in the classic manner.

Claims

1. A virtual image control panel projecting device for a cabin for an elevator, comprising:

A projector for projecting a virtual image on a projection surface of a wall of the elevator cabin,

said virtual image including at least one virtual control element recognizable by an operator, and

a control sensor for sensing the activation of said virtual control element by the operator and for initiating a corresponding action by the elevator.

2. The device as recited in claim 1, wherein the projector is located in the ceiling of the elevator cabin proximate the wall upon which the virtual image is projected, and

wherein the projection surface of the wall is located in the upper portion of the wall.

3. The device as recited in claim 1, wherein the projector further comprises:

a light source for generating a beam of light,

a transmissive type liquid crystal display, said beam of light passing through said liquid crystal display, and

a lens receiving said beam of light from said liquid crystal display, for focussing said beam onto the projection surface.

4. The device as recited in claim 3, wherein the beam of light is comprised of visual light.

5. The device as recited in claim 1, wherein the device further comprises:

a control means, including a microprocessor, for controlling the liquid crystal display to provide a plurality of separate portions within the projected image, each portion showing a different functional image.

6. The device as recited in claim 1, wherein the control sensor includes and optical detector for sensing the activation of the virtual control element by the operator.

7. The device as recited in claim 1, wherein the control sensor includes:

a touch sensitive surface, coincident with the projection surface for detecting activation of the virtual control element by touching by the operator of the portion of the projection surface corresponding to the location of the projected image of the virtual control element.

8. The device as recited in claim 7, wherein the touch sensitive surface is selected from the group of touch sensitive surfaces using resistive sensors, infared detection, or an acoustic wave plate.

9. The device as recited in claim 2, wherein the device further includes a vibration insulated mounting between the projector and the elevator cabin.