Light mapping system for vehicle passenger compartment

• US 10,744,934 B2
• Filed: 07/09/2019
• Issued: 08/18/2020
• Est. Priority Date: 07/10/2018
• Status: Active Grant

• Current Assignee: Gentex Corporation
• Original Assignee: Gentex Corporation
• Inventors: Anderson, John S., Neuman, George A., Saenger Nayver, Mario F., Nelson, Barry K.
• Primary Examiner(s): Williams, Joseph L
• Assistant Examiner(s): Diaz, Jose M
• Application Number:
  US16/506,047
• Publication Number:
  US 20200017023A1
• Time in Patent Office: 406 Days
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/10495 optoelectronic, i.e. optical valve
• CPC Class Codes: B32B 17/10504 Liquid crystal layer
• CPC Class Codes: B32B 17/10513 Electrochromic layer
• CPC Class Codes: B32B 17/10532 Suspended particle layer
• CPC Class Codes: B32B 17/1055 characterized by the resin layer, i.e. interlayer
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: B32B 17/1077 containing polyurethane
• CPC Class Codes: B32B 17/10788 containing ethylene vinylacetate
• CPC Class Codes: B32B 2605/08 Cars
• CPC Class Codes: B60J 3/04 adjustable in transparency
• CPC Class Codes: B60Q 3/18 for varying the light intensity
• CPC Class Codes: B60Q 3/64 for a single lighting device
• CPC Class Codes: B60Q 3/745 using lighting panels or mats, e.g. electro-luminescent panels, LED mats
• CPC Class Codes: F21K 9/278 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G01J 1/0209 Monolithic
• CPC Class Codes: G01J 1/0242 Control or determination of height or angle information of sensors or receivers; Goniophotometry
• CPC Class Codes: G01J 1/0411 using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
• CPC Class Codes: G01J 1/0437 using masks, aperture plates, spatial light modulators, spatial filters, e.g. reflective filters
• CPC Class Codes: G01J 1/06 : Restricting the angle of incident light
• CPC Class Codes: G01J 1/4228 : arrangements with two or more detectors, e.g. for sensitivity compensation
• CPC Class Codes: G09G 2320/0626 : for control of overall brightness
• CPC Class Codes: G09G 3/3406 : Control of illumination source illumination devices structurally associated with liquid crystal cells G02F1/1336

Abstract

A vehicle interior light intensity mapping system comprises at least one light detector configured to identify an intensity of light distributed in a plurality of regions in the vehicle. The light detector comprises an optic device comprising at least one aperture configured to receive light from a plurality of directions distributed in a passenger compartment of a vehicle. The light detector further comprises at least one sensor configured to receive the light from the plurality of directions. A controller is configured to identify an intensity of the light in each of a plurality of regions of the vehicle, wherein each of the regions corresponds to a different direction of the light received through each of the plurality of apertures of the optic device.

Claims

1. A vehicle interior light intensity mapping system comprising:

at least one light detector configured to identify an intensity of light distributed in a plurality of regions in the vehicle, wherein the at least one light detector comprises;

an optic device comprising at least on configured to receive light from a plurality of directions distributed in a passenger compartment of a vehicle; and

at least one sensor at least one aperture configured to receive the light from the plurality of directions; and

a controller in communication with the at least one sensor, wherein the controller is configured to;

identify the intensity of the light in each of a plurality of regions of the vehicle; and

generate a light intensity map for the passenger compartment comprising indications of variations in light intensity in the plurality of regions.

2. The system according to claim 1, wherein the at least one aperture comprises a plurality of apertures.

3. The system according to claim 2, wherein each of the regions identifies a different direction of the light received through each of the plurality of apertures of the optic device.

4. The system according to claim 1, wherein the light optic device comprises a plurality of light transmissive regions extending from the plurality of apertures to the at least one sensor.

5. The system according to claim 4, wherein the at least one sensor comprises a plurality of light detecting zones configured to independently detect a light level from each of the light transmissive regions.

6. The system according to claim 5, wherein the plurality of light detecting zones comprise at least one pixel configured to detect the light level.

7. The system according to claim 4, wherein the light transmissive regions comprise a plurality of light transmissive portions separated by a plurality of opaque regions.

8. The system according to claim 7, wherein the light transmissive portions are configured to receive light from each of the plurality of regions.

9. The system according to claim 7, wherein the controller is configured to identify the light intensity of each of the plurality of regions in response to receiving light levels corresponding to each of the light transmissive portions from the at least one light sensor.

10. The system according to claim 1, wherein each of the plurality of regions comprises a region for each passenger space in the passenger compartment of the vehicle.

11. The system according to claim 10, wherein the passenger spaces comprise a driver side front region, a passenger side front region, a driver side rear region, and a passenger side rear region.

12. A method for controlling a vehicle interior light intensity mapping system, the method comprising:

identifying light impinging on at least a portion of a vehicle from a plurality of directions;

determining an intensity of the light in each of the plurality of directions;

determining a panel specific light intensity of the light impinging on a plurality of light transmissive panels of the vehicle based on the intensity of the light in each of the plurality of directions;

controlling a transmittance of the light transmissive panels in response to the panel specific light intensity.

13. The method according to claim 12, wherein controlling the transmittance comprises independently controlling the transmittance of each of a plurality of dimming zones of each of the plurality of light transmissive panels.

14. The method according to claim 12, wherein determining the intensity of the light in each of the plurality of directions comprises receiving light through a plurality of apertures of a light sensor, wherein each of the apertures is configured to identify light in a corresponding direction of the plurality of directions.

15. The method according to claim 12, further comprising:

estimating a direction of the sun relative to the vehicle based on a heading direction of the vehicle; and

determining the intensity of the light impinging on the plurality of light transmissive panels of the vehicle-based in part on the direction of the sun.

16. The method according to claim 12, wherein the determining the panel specific light intensity comprises generating a light intensity map for a passenger compartment of the vehicle.

17. The method according to claim 12, further comprising:

detecting a location of a passenger in the vehicle; and

identifying the light transmissive panels through which the light passes through to the location.

18. The method according to claim 17, further comprising:

controlling the transmittance of a first set of the light transmissive panels controlling the light impinging on the location.

19. The method according to claim 18, further comprising:

independently controlling the transmittance of a second set of the light transmissive panels concurrently with the first set.

20. A vehicle interior light intensity mapping system comprising:

at least one light detector configured to identify an intensity of light distributed in a plurality of regions in the vehicle, wherein the at least one light detector comprises;

an optic device comprising at least one aperture configured to receive light from a plurality of directions distributed in a passenger compartment of a vehicle; and

at least one sensor configured to receive the light from the plurality of directions, wherein the at least one sensor comprises a plurality of light detecting zones configured to independently detect a light level from each of the apertures; and

a controller in communication with the at least one sensor, wherein the controller is configured to identify the intensity of the light in each of a plurality of regions of the vehicle, wherein each of the regions corresponds to a different direction of the light received through each of the plurality of apertures of the optic device.