CA2388082A1 - Sunload sensor for automotive vehicles - Google Patents
Sunload sensor for automotive vehicles Download PDFInfo
- Publication number
- CA2388082A1 CA2388082A1 CA 2388082 CA2388082A CA2388082A1 CA 2388082 A1 CA2388082 A1 CA 2388082A1 CA 2388082 CA2388082 CA 2388082 CA 2388082 A CA2388082 A CA 2388082A CA 2388082 A1 CA2388082 A1 CA 2388082A1
- Authority
- CA
- Canada
- Prior art keywords
- sensor
- lens
- light
- sensing elements
- electronic components
- 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.)
- Granted
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
A dual-channel sunload sensor capable of sensing the intensity and directionality of the solar radiative power entering the cabin of a car through the windshield, for the purpose of providing information to the data processing system of the car that enables a control of the air conditioning system that optimizes the comfort of the driver and of the front passenger. Signals from the sensor offer reliable indications of the solar load power and directionality for a wide range of angular positions of the sun. The sensor includes two convex transparent parts collecting light each toward a respective photodiode, the transparent parts being separated by an opaque portion.
Claims (9)
1. A dual sunload sensor to sense the intensity and directionality of solar radiative power entering the cabin of a vehicle through a windshield, said sensor comprising:
a housing;
a substrate bearing two light sensitive semiconductor elements thereon housed in said housing;
two lenses, one lens being located above a light sensitive semiconductor element, the other lens being located over the other light sensitive semiconductor element; and an optically opaque wall located separating the two lenses.
a housing;
a substrate bearing two light sensitive semiconductor elements thereon housed in said housing;
two lenses, one lens being located above a light sensitive semiconductor element, the other lens being located over the other light sensitive semiconductor element; and an optically opaque wall located separating the two lenses.
2. The sensor of claim 1 wherein said sensor further includes a light guide in the shape of a truncated cylinder between the base of each lens and the corresponding sensing element.
3. The sensor of claim 1 wherein a layer of light diffusive material is added to the base of the lens.
4. The sensor of claim 3, wherein the layer of light diffusive material consists of clear polymer in which grains of titanium dioxide are dispersed.
5. The sensor of claim 3, wherein the layer of light diffusive material has its edges at least partially exposed directly to incoming solar light.
6. The sensor of claim 1, wherein the sensing elements are silicon photodiodes.
7. The sensor of claim 1, wherein passive electronic components are mounted on the substrate along with the sensing elements, for adjusting the electrical output of the sensor.
8. The sensor of claim 1, wherein active electronic components are mounted on the substrate along with the sensing elements and passive electronic components, for the purpose of amplifying and adjusting the electrical output of the sensor.
9. The sensor of claim 1, wherein each lens has an optical axis inclined in a direction substantially corresponding to the diagonals of cubes resting in the plane of the sensing elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2388082A CA2388082C (en) | 2001-05-29 | 2002-05-29 | Sunload sensor for automotive vehicles |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29352101P | 2001-05-29 | 2001-05-29 | |
| US60/293,521 | 2001-05-29 | ||
| CA2,349,093 | 2001-05-29 | ||
| CA002349093A CA2349093A1 (en) | 2001-05-29 | 2001-05-29 | Sunload sensor for automotive vehicules |
| CA2388082A CA2388082C (en) | 2001-05-29 | 2002-05-29 | Sunload sensor for automotive vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2388082A1 true CA2388082A1 (en) | 2002-11-29 |
| CA2388082C CA2388082C (en) | 2012-03-13 |
Family
ID=27171549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2388082A Expired - Fee Related CA2388082C (en) | 2001-05-29 | 2002-05-29 | Sunload sensor for automotive vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2388082C (en) |
-
2002
- 2002-05-29 CA CA2388082A patent/CA2388082C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2388082C (en) | 2012-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20220301 |
|
| MKLA | Lapsed |
Effective date: 20200831 |