AU9413198A - Oncoming vehicle headlight glare reduction device/system - Google Patents
Oncoming vehicle headlight glare reduction device/system Download PDFInfo
- Publication number
- AU9413198A AU9413198A AU94131/98A AU9413198A AU9413198A AU 9413198 A AU9413198 A AU 9413198A AU 94131/98 A AU94131/98 A AU 94131/98A AU 9413198 A AU9413198 A AU 9413198A AU 9413198 A AU9413198 A AU 9413198A
- Authority
- AU
- Australia
- Prior art keywords
- light
- reduction device
- glare reduction
- image
- filters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Description
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AUSTRALIA
Patents Act 1990 Complete Specification Standard Patent Oncoming vehicle headlight Glare reduction. device/system The following statement is a full description of this invention, including the best method of performing it known to me: Page 2 of6 1 Oncoming vehicle headlight Glare reduction device/system This invention relates to safer night driving.
The major undesired effect associated with localised beams of light at night is to reduce the size of the eyes Iris, thereby reducing ALL light entering the eye, this can result in little or no light entering the eye from other objects of lower light intensity, resulting in the blinding effect, due to the nature of operation of the eye there is also a delay in recovery from this blinding effect and it is during these periods that the driver of a vehicle is forced to cope essentially without the sense of vision, a dangerous situation indeed. In lesser than extreme situations ie all night driving where there is a bright source of light but not necessarily directly focused on the driver, there is a degradation of vision in the middle distance a degree of blinding effect.
".Primary benefits of this invention are safer night driving by elimination of blinding associated with oncoming vehicle headlamps and street lights and static floodlights who's beams impinge upon the roadway and any localised intense light source. Maximises intermediate distance vision by selectively reducing the intensity of sources of light consequently reducing the effect of the iris to reduce in size.
In all (but not limited to) these situations the invention described herein prevents the blinding effect thus resulting in better overall visibility of objects at night.
9@S*O* Uses of this device/system include but are not limited to persons operating: Passenger vehicles, Trucks, Trains, Aircraft, Water craft to reduce the glare from any natural or artificial light source.
A glare reduction device/system comprising a photo imaging sensor (a device like a camera, which produces electronic signals that contain information about the light from an object which enters it) an image processor (electronic circuitry which processes the image signals and drives the image reproduction filters) a pair of image reproduction filters (devices constructed of a medium/substrate of or similar to glass or perspex plates which actively interfere with the transmission of light through them, when a signal is applied to them such as Liquid Crystal Matrix Display "screens") and a frame, the frame being worn by a person such that the image reproduction filters are in front of the wearers eyes, the components are configured and connected such that corresponding light images (from objects in the wearers field of vision) striking the photo image sensor which exceed a predetermined light intensity threshold are selectively reproduced inverted at the image reproduction filters so as to selectively interfere with the transmission of light from those objects to the wearers eyes.
Page 3 of6 2 To assist with understanding the operation of the invention, reference will be made to the accompanying drawings which show one example of the invention.
FIG 1 shows one form of the invention, in this example the configuration resembles a pair of spectacles The device/system works by detecting the incident light using a photo imaging sensor (a device like a camera, which produces electronic signals that contain information about the light from an object which enters it) located as close as practicable to the eyes, in the case of glasses at the bridge of the spectacles, the signal from the photo imaging sensor is then inverted at the image processor (4) and subsequently applied to the image reproduction filters (devices constructed of a medium/substrate of or similar to glass or perspex plates which actively interferes with light transmission when a signal is applied to them such as Liquid Crystal Matrix Display "screens")(3).
Since the signal has been inverted, the reproduced image at the image reproduction filters will be in negative ie light areas detected at the sensor will appear dark when reproduced at the image reproduction filters(3).
By adjusting the threshold electronically and/or by using an optical filter located in front of the sensor, only the brighter areas will be reproduced at the image reproduction filters as darker areas, thereby allowing unimpeded vision over rest S of the viewing area.
The image processor may incorporate adjustments for horizontal and vertical positioning, size and light level threshold of the reproduced image. An optical filter may be used in front of the sensor to reduce it's sensitivity to particular colours of light.
0* There may be mechanical adjustment controls on the frame of the apparatus to physically adjust the vertical and horizontal positions of the filters for synchronisation purposes.
One form of the invention may incorporate the facility flip up the filters.
FIG 2 shows the operation of the invention, it depicts the light from the image entering the photo imaging sensor and being focused on to it's sensitive surface at the signal which the sensor produces is inverted at the processor the inverted signal is then sent to the image reproduction filter where the bright areas (xx) on the sensor are reproduced as dark areas (yy) on the filter, partially inhibiting the transmission of light.
Page(s) is the abstract page.
Claims (7)
1. A glare reduction device/system comprising a photo imaging sensor (a device like a camera, which produces electronic signals that contain information about the light from an object which enters it) an image processor (electronic circuitry which processes the image signals and drives the image reproduction filters) a pair of image reproduction filters (devices constructed of a medium/substrate of or similar to glass or perspex plates which actively interfere with the transmission of light through them, when a signal is applied to them such as Liquid Crystal Matrix Display "screens") and a frame, the frame being worn by a person such that the image reproduction filters are in front of the wearers eyes, the components are configured and connected such that corresponding light images (from objects in the wearers field of vision) striking the photo image sensor which exceed a predetermined light intensity threshold are selectively reproduced inverted at the image reproduction OG filters so as to selectively interfere with the transmission of light from those objects to the wearers eyes.
2. The glare reduction device/system of claim 1 wherein a processor or other device utilises an inverted signal or inverse video.
3. The glare reduction device/system of claim 1 wherein an inverted image, or part thereof, is reproduced to effect interference with transmission of light to the eye(s).. The glare reduction device/system of claim 1 wherein the image reproduction filters are devices constructed of a medium/substrate of or similar to glass or perspex plates which actively interfere with light transmission through them when a signal is applied to them such as Liquid Crystal Matrix Display "screens".
5. The glare reduction device/system of claim 1 wherein there may be mechanical adjustment controls on the frame of the apparatus to physically adjust the vertical and 0 horizontal positions of the filters for synchronisation purposes
6. The glare reduction device/system of claim 1 wherein the image processor incorporates adjustments for horizontal and/or vertical positioning and/or size and/or light level threshold of the reproduced image.
7. The glare reduction device/system of claim 1 wherein an optical filter may be incorporated in front of the photo imaging sensor to reduce it's sensitivity to light intensity and/or particular colours of light
8. A glare reduction device/system substantially as herein described with reference to the accompanying drawings. Jonathan Carlyon Woodcock 28 October, 1998
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU94131/98A AU9413198A (en) | 1998-11-25 | 1998-11-25 | Oncoming vehicle headlight glare reduction device/system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU94131/98A AU9413198A (en) | 1998-11-25 | 1998-11-25 | Oncoming vehicle headlight glare reduction device/system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU9413198A true AU9413198A (en) | 2000-06-01 |
Family
ID=3764166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU94131/98A Abandoned AU9413198A (en) | 1998-11-25 | 1998-11-25 | Oncoming vehicle headlight glare reduction device/system |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU9413198A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241162A (en) * | 2013-05-04 | 2013-08-14 | 程书全 | Night crossing safety system for automobile with light-emitting diode (LED) type car lights |
| US9030383B2 (en) | 2008-09-29 | 2015-05-12 | Carl Zeiss Ag | Display device and display method |
-
1998
- 1998-11-25 AU AU94131/98A patent/AU9413198A/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9030383B2 (en) | 2008-09-29 | 2015-05-12 | Carl Zeiss Ag | Display device and display method |
| CN103241162A (en) * | 2013-05-04 | 2013-08-14 | 程书全 | Night crossing safety system for automobile with light-emitting diode (LED) type car lights |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK4 | Application lapsed section 142(2)(d) - no continuation fee paid for the application |