Dead-front lens for interior vehicle display

A display and lens technology, applied in vehicle parts, instruments, optics, etc., can solve problems such as weakening the effect of smoke-colored lenses and increasing the visibility of instruments

Inactive Publication Date: 2016-04-06
CONTINENTAL AUTOMOTIVE SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This may undesirably increase the visibility of the gauges when turning off the vehicle, and diminish the smoke lens effect

Method used

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  • Dead-front lens for interior vehicle display
  • Dead-front lens for interior vehicle display
  • Dead-front lens for interior vehicle display

Examples

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Embodiment Construction

[0020] The following description of the preferred embodiment(s) is merely exemplary in nature and is in no way intended to limit the invention, its application or uses.

[0021] now refer to figure 1 , the placement of the invention in a vehicle is shown generally at 10 . Typically, a vehicle has a front fascia 11 and an instrument panel 12 . The invention will be utilized in the gauges 13 and or 13 present on the driver's side of the instrument panel 11 .

[0022] refer to figure 1 , figure 1 The instrument panel 12 is shown schematically and includes a housing 15 supporting a lens 14 . In this example, light guide assembly 19 positioned opposite lens 14 includes light source 16 for illuminating illuminable display surface 22 . Light source 16 generates display light that travels through light guide 20 , which is reflected internally off surface 21 of light guide 20 . Light reflector 17 within light guide 20 receives the display light and reflects the display light away...

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PUM

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Abstract

A vehicle instrument cluster lens assembly for a vehicle instruments panel includes a first layer comprised of a quarter-wave plate ([lambda] / 4). A second layer which is a polarizer, a third layer of another quarter-wave plate ([lambda] / 4); the first and a fourth layer being a polarizer light to a new orientation. The quarter-wave plates change the orientation of the light angle that it can be seen with a polarized eye glass lens. The vehicle lens assembly functions in a dual manner depending on the light source direction and orientation of the light to prevent light emitted from the instrument as well as making the display light visible to viewers wearing polarized sunglasses.

Description

technical field [0001] The invention relates to so-called "deadfront" type displays for vehicles. Background technique [0002] The present invention relates to vehicle displays, and more particularly to a vehicle lens assembly having a polarizer and an optical retarder for reducing glare and improving visibility for vehicle occupants. [0003] Vehicle displays, such as instrument clusters with speedometer and tachometer gauges, typically display important information to occupants of the vehicle. Conventional vehicle displays typically include a housing that supports a circuit board. One or more light sources are typically mounted on the circuit board to illuminate the display surface within the housing, power the gauges, and illuminate the gauges. A clear, transparent lens is mounted on the front of the housing between the vehicle occupant and the illuminated display surface to protect the display surface and gauges. [0004] Selected vehicle displays utilize smoked lens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K35/00G02B27/02G02B27/28
CPCG02B27/281G02B1/111
Inventor V.B.伯曼G.O.麦科诺希J.J.鲁尼
Owner CONTINENTAL AUTOMOTIVE SYST INC
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