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US 2026/0169131 A1Published application
Glass cover for two different optical sensors
AssigneeAgc Glass Europe
InventorsJean MASSON, Alexandre COSTE
Life of this patent
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Abstract
A cover for a vehicle sensor module which has at least two different optical sensors operating at different wavelength ranges. The cover has at least a first glass sheet with an absorption coefficient less than 15 m−1 at the first optical sensor's operating wavelength range. The cover also has two distinct zones corresponding to projections of the first and second optical sensors' field of view on the cover, respectively. The first zone is transparent at the first optical sensor's operating wavelength range and the second zone is transparent at the second optical sensor's operating wavelength range.
Claims16
1:
- A cover for a vehicle sensor module, wherein the vehicle sensor module comprises at least two different optical sensors, wherein a first optical sensor having a first field of view operates in a near-infrared wavelength range, and a second optical sensor having a second field of view operates in a visible wavelength range, the cover comprising at least a first glass sheet having an absorption coefficient less than 15 m−1 at the operating wavelength range of the first optical sensor, the at least first glass sheet, comprising an internal face destined to face the at least two different optical sensors and an external face opposite to the internal face, the cover, comprising:
- i. a first zone destined to correspond to at least a projection of the first field of view on the cover;
- and
- ii. a second zone, distinctive from the first zone, destined to correspond to at least a projection of the second field of view on the cover,
- wherein the first zone is transparent at the operating wavelength range of the first optical sensor and the second zone is transparent at the operating wavelength range of the second optical sensor.
2 more elements
2:
- The cover according to claim 1, wherein the cover further comprises:
- i. a second glass sheet having an absorption coefficient less than 15 m−1 at the operating wavelength range of the first optical sensor, the second glass sheet comprising an internal face destined to face the at least two different optical sensors and an external face opposite to the internal face;
- and
- ii. an interlayer laminating the internal face of the first glass sheet and the external face of the second glass sheet, the interlayer being transparent at the operating wavelength range of both the first and the second optical sensors.
1 more element
3:
- The cover according to claim 2, wherein an ink, transparent in the operating wavelength range of the first optical sensor and opaque in the operating wavelength range of the second optical sensor, is integrally applied on the internal face of the first glass sheet or on the internal face or the external face of the second glass sheet or on the interlayer except on the second zone of the cover.
4:
- The cover according to claim 3, wherein the interlayer is replaced by an insert in the second zone, the insert being transparent in the operating wavelength range of the second optical sensor.
5:
- The cover according to claim 2, wherein a film, transparent in the operating wavelength range of the first optical sensor and opaque in the operating wavelength range of the second optical sensor, is integrally applied on the internal face of the first glass sheet or on the internal face or the external face of the second glass sheet or on the interlayer except on the second zone of the cover.
6:
- The cover according to claim 1, wherein the cover further comprises:
- iii. a second glass sheet having an absorption coefficient less than 15 m−1 at the operating wavelength range of the first optical sensor, the second glass sheet comprising an internal face destined to face the at least two different optical sensors and an external face opposite to the internal face;
- and
- iv. an interlayer laminating the internal face of the first glass sheet and the external face of the second glass sheet, the interlayer being transparent at the operating wavelength range of the first optical sensor, wherein the interlayer is replaced by an insert in the second zone, the insert being transparent in the operating wavelength range of the second optical sensor.
1 more element
7:
- The cover according to claim 1, wherein the cover further comprises:
- i. a second glass sheet having an absorption coefficient less than 15 m−1 at the operating wavelength range of the first optical sensor, the second glass sheet comprising an internal face destined to face the at least two different optical sensors and an external face opposite to the internal face;
- ii. a film, transparent in the operating wavelength range of the first optical sensor and opaque in the operating wavelength range of the second optical sensor, the film being replaced by an insert in the second zone, the insert being transparent in the operating wavelength range of the second optical sensor;
- iii. a first interlayer laminating the internal face of the first glass sheet and the film, the first interlayer being transparent at the operating wavelength range of both the first and the second optical sensors;
- and
- iv. a second interlayer laminating the external face of the second glass sheet and the film, the second interlayer being transparent at the operating wavelength range of both the first and the second optical sensors.
3 more elements
8:
- The cover according to claim 1, wherein the cover further comprises:
- i. a second glass sheet having an absorption coefficient less than 15 m−1 at the operating wavelength range of the first optical sensor, the second glass sheet comprising an internal face destined to face the at least two different optical sensors and an external face opposite to the internal face;
- ii. a film, transparent in the operating wavelength range of the first and second optical sensors, the film being covered by an ink except in the second zone of the cover, the ink being transparent in the operating wavelength range of the first optical sensor and opaque in the operating wavelength range of the second optical sensor;
- iii. a first interlayer laminating the internal face of the first glass sheet and the film, the first interlayer being transparent at the operating wavelength range of both the first and the second optical sensors;
- and
- iv. a second interlayer laminating the external face of the second glass sheet and the film, the second interlayer being transparent at the operating wavelength range of both the first and the second optical sensors.
3 more elements
9:
- The cover according to claim 1, wherein the first optical sensor is a lidar or a near-infrared camera.
10:
- The cover according to claim 1, wherein the second optical sensor is a camera.
11:
- The cover according to claim 6, wherein the first and second glass sheets have an absorption coefficient of less than 10 m−1, in the operating wavelength range of the second optical sensor.
12:
- The cover according to claim 6, wherein the external face of the first glass sheet and/or the internal face of the second glass sheet is coated with an antireflection coating.
13:
- The cover according to claim 1, wherein the external face of the first glass sheet is coated with a water repellent coating.
14:
- The cover according to claim 1, wherein the cover further comprises a silverprint or a conductive coating.
15:
- The cover according to claim 1, wherein the cover is a part of a windshield, a backlite, a sidelite or an exterior trim element of a vehicle.
16:
- The cover according to claim 6, wherein the first and second glass sheets have an absorption coefficient less than 5 m−1 in the operating wavelength range of the second optical sensor.