Pressurized sensor seal

1. An apparatus comprising:

a housing including an aperture;

a sensor in the housing and having a field of view received through the aperture;

a seal sealing a gap between the sensor and the aperture; and

a blower positioned to blow into the housing;

wherein the seal includes a contact surface abutting the housing and a bore aligned with the aperture.

2. The apparatus of claim 1 , wherein the seal is attached to the housing concentrically around the aperture.

3. The apparatus of claim 1 , wherein the seal is adhered to the housing.

4. The apparatus of claim 1 , wherein the sensor includes a groove, and the seal is engaged with the groove.

5. The apparatus of claim 1 , wherein the seal has an interference fit with the sensor.

6. The apparatus of claim 1 , wherein the housing includes a rib extending along an edge of the aperture, and the seal is engaged with the rib.

7. The apparatus of claim 1 , wherein the bore includes a first section spaced from the sensor and a second section concentrically contacting the sensor, and the second section is between the first section and the aperture.

8. The apparatus of claim 7 , wherein the sensor extends through the second section.

9. The apparatus of claim 1 , wherein the sensor extends into the aperture.

10. The apparatus of claim 1 , wherein the seal is radially symmetric.

11. The apparatus of claim 1 , wherein the housing includes a chamber in which the sensor is disposed, and the blower is disposed outside the chamber and positioned to blow into the chamber.

12. The apparatus of claim 11 , wherein the housing includes a second chamber in which the blower is disposed, and the blower is positioned to draw air from an ambient environment outside the housing.

13. The apparatus of claim 1 , wherein the sensor includes a plurality of thermally conductive fins.

14. The apparatus of claim 1 , wherein the aperture is a first aperture, the sensor is a first sensor, the seal is a first seal, and the housing includes a second aperture;

the apparatus further comprising a second sensor having a field of view received through the second aperture, and a second seal sealing a gap between the second sensor and the second aperture.

15. The apparatus of claim 14 , wherein the housing includes a chamber, the first and second sensors are disposed in the chamber, and the blower is positioned to blow into the chamber.

16. An apparatus comprising:

a housing including an aperture;

a sensor in the housing and having a field of view received through the aperture;

a seal sealing a gap between the sensor and the aperture; and

means for pressurizing the housing;

wherein the sensor includes a plurality of thermally conductive fins.

17. The apparatus of claim 16 , wherein the seal is attached to the housing concentrically around the aperture.

18. The apparatus of claim 16 , wherein the seal has an interference fit with the sensor.

19. An apparatus comprising:

a housing including an aperture;

a sensor in the housing and having a field of view received through the aperture;

a seal sealing a gap between the sensor and the aperture; and

a blower positioned to blow into the housing;

wherein the housing includes a chamber in which the sensor is disposed; and

the blower is disposed outside the chamber and positioned to blow into the chamber.

20. An apparatus comprising:

a housing including a first aperture, a second aperture, and a chamber;

a first sensor disposed in the chamber and having a field of view received through the first aperture;

a second sensor disposed in the chamber having a field of view received through the second aperture;

a first seal sealing a gap between the first sensor and the first aperture;

a second seal sealing a gap between the second sensor and the second aperture; and

a blower positioned to blow into the housing and into the chamber.