Multifunctional collimator indicator

• US 7,629,877 B2
• Filed: 12/19/2006
• Issued: 12/08/2009
• Est. Priority Date: 12/19/2006
• Status: Expired due to Fees

• Current Assignee: Alexander Efros, Matvey Lvovskiy, Mikhail Lvovsky, Simon Iokhvidson
• Original Assignee: Alexander Efros, Matvey Lvovskiy, Mikhail Lvovsky, Simon Iokhvidson
• Inventors: Lvovskiy, Matvey, Efros, Alexander, Lvovsky, Mikhail, Iokhvidson, Simon
• Primary Examiner(s): La; Anh V
• Application Number:
  US11/641,092
• Publication Number:
  US 20090115586A1
• Time in Patent Office: 1,085 Days
• Field of Search: 340/438, 340/980, 353/13, 353/14, 353/28, 353/69, 345/7, 345/8, 345/9, 359/630, 359/631, 359/632
• US Class Current: 340/438
• CPC Class Codes: B60K 2360/334 Projection means
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/0165 associated with a head-down display
• CPC Class Codes: G02B 2027/0187 slaved to motion of at least a part of the body of the user, e.g. head, eye
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence

Abstract

The present invention relates to indication systems providing augmented visual support for the operator of a motor vehicle, vessel or an aircraft. The indication system is positioned in the location of a traditional vehicular gauge dashboard. The indication system consists of an image formulator and an optical collimator system with two visual channels. Lower channel is used for direct visual tracking of all virtual gauge readings while the upper channel is used to track updates “on the windshield” of a vehicle with the background of the surrounding environment. The lower channel displays virtual collimator imaging of the traditional analog or digital gauges as well as navigational system data. The upper channel is reflected onto the exterior background of the windshield and displays collimator imaged critical data that is required for the safe operation of a vehicle. To provide the switching functionality between the two channels, the indication system utilizes a lightproof partition. The side of the partition facing the image formulator is designed as a flat reflective mirror. In order to engage the lower channel, the partition is placed away from the optical systems for the lower channel. To provide viewing of the upper channel, the partition is positioned along the optical axis of the upper collimator lens at a given angle. To provide the function of automatic switching between the channels, the multifunctional collimator indicator is equipped with an eye position tracking system which tracks real-time position of the eye'"'"'s pupil.

Claims

1. Multifunctional collimator indicator positioned inside vehicular cabin in place of a standardized dashboard and comprising of:

an LCD based image formulator, dual channel displays whereas the upper channel is projecting a collimated monochromatic image of the ongoing critical vehicular parameters onto the dashboard and into the optical infinity, and whereas the lower channel is formulating virtual color imaging of a standardized needle and digitized gauges as well as a computer and a visional tracking system to identify the direction of the driver'"'"'s view by following the position of the eye pupils and which is further distinguished by;

whereas to provide increased levels in safety of operating a motor vehicle by eliminating the timing which is otherwise required for driver'"'"'s eye accommodation from the outside environment onto the lower channel formulating imaging of the standardized dashboard, the lower channel displays information in a collimated format;

whereas to provide the ability to alternate visual tracking of images provided by both channels as a result of alternation in direction of the driver'"'"'s view as well as to minimize light losses, an optical system is equipped with a shifting optical element which supports complete reflection of monochromatic green light during operation of the upper channel, and which further supports complete visible light spectrum transparency during operation of the lower channel.

2. Multifunctional collimator indicator as in claim 1, distinguished by whereas to provide collimated imaging by the lower channel, the lower channel display is equipped with the optical system and whereas to further support favorable visual comprehension of the virtual images of the vehicular gauges by the driver equivalent to the comprehension of ongoing reading of the standardized dashboard gauge, the angular displacement of the lower channel collimating system is equivalent to the angular displacement of the traditional standardized dashboard the distance to which is measured from the positional origin of the driver'"'"'s eyes.

3. Multifunctional collimator indicator as in claim 2, distinguished by whereas to minimize the device'"'"'s dimensions to best be positioned within frontal limits of the vehicular dashboard, the egress lenses of the lower channel collimating optical system are designed in circular form without cutouts to the upper and lower portions.

4. Multifunctional collimator indicator as in claim 2, distinguished by whereas the optical element providing alternation in visual tracking of the graphical data of the upper and lower channels is designed as a swinging fully reflective mirror where during image visualization of the upper channel projected onto the windshield, the reflecting surface of the optical element turned toward the image formulator is positioned at such angle where the optical axis of the image formulator and the upper channel'"'"'s collimating system intersect at a single point on the reflective surface, while during image visualization of the lower channel, the optical element is moved out of the lower channel'"'"'s field of view by so simultaneously covering the upper optical channel.

5. Multifunctional collimator indicator as in claim 4, distinguished by whereas to automate the positioning of the swing optical element into any one of the two fixed positions that are derived from the direction of the driver'"'"'s sight, the element is equipped with an automatic drive which places the optical element into a desired position in conformance with a command signal originating from the driver'"'"'s pupil tracking system.