Sensor Having a Rotatable Enclosure

• US 20150069221A1
• Filed: 11/13/2014
• Published: 03/12/2015
• Est. Priority Date: 12/11/2009
• Status: Active Grant

• Current Assignee: Lutron Technology Company LLC
• Original Assignee: Lutron Electronics Company Incorporated (Lutron Electronics)
• Inventors: Sloan, Greg Edward, Brugger, Fabian, Kessler, Jeffrey A.
• Granted Patent: US 9,568,356 B2
• Time in Patent Office: Days
• US Class Current: 250/214.AL
• CPC Class Codes: G01J 1/02 Details
• CPC Class Codes: G01J 1/0271 Housings; Attachments or accessories for photometers
• CPC Class Codes: G01J 1/0448 Adjustable, e.g. focussing
• CPC Class Codes: G01J 1/4204 with determination of ambient light solar light G01J2001/4266
• CPC Class Codes: G01J 1/44 Electric circuits for command of an exposure part G03B7/02

Abstract

A daylight sensor is adapted to be mounted to a surface in a space having a window, and has a rotatable enclosure for directing a lens of the daylight sensor towards the window. The daylight sensor includes a photosensitive circuit for measuring a light intensity in the space, and an enclosure for housing the photosensitive circuit. The lens directs light from the space towards the photosensitive circuit. The enclosure has a cover portion and a base portion adapted to be mounted to the surface. The cover portion is rotatable with respect to the base portion, so as to direct the lens towards the window after the base portion is mounted to the surface. The base portion may also include a cylindrical wall having a channel adapted to capture a snap of the cover portion, such that the snap may move angularly through the channel to allow for rotation of the cover portion with respect to the base portion.

Claims

1. A sensor adapted to be mounted to a surface, the sensor comprising:

a photosensitive circuit for measuring a light intensity;

a base portion configured to be mounted to the surface, the base portion comprising a rear surface and a cylindrical wall configured to be connected to the rear surface, the wall having a channel formed therein adjacent to the rear surface;

a cover portion configured to be connected to the base portion, the cover portion comprising at least one snap captured in the channel and configured to move angularly through the channel to allow for rotation of the cover portion with respect to the base portion;

wherein the cover portion comprises a post extending towards the cylindrical wall of the base portion, the post configured to be received in detents formed in the cylindrical wall of the base portion to allow for rotation of the cover portion with respect to the base portion to a plurality of discrete positions.

2. The sensor of claim 1, wherein the channel is formed by a plurality of tabs on the cylindrical wall surrounding a circumference of the base portion with gaps formed between the tabs.

3. The sensor of claim 2, wherein the detents are formed in each of the tabs of the base portion.

4. The sensor of claim 3, wherein the cover portion comprises a second post extending towards the cylindrical wall of the base portion, the second post also configured to be received in the detents formed in each of the tabs of the base portion.

5. The sensor of claim 4, wherein, when one post is received in one of the detents, the other post is received in one of the gaps formed between the tabs.

6. The sensor of claim 3, wherein the detents are formed by two parallel extensions of the tabs on the cylindrical wall of the base portion.

7. The sensor of claim 2, wherein a width of the snap in the angular direction is larger than a width of the gaps between the tabs.

8. The sensor of claim 1, wherein the post is formed in a structure that is connected to the cover portion.

9. The sensor of claim 8, wherein the structure is configured to hold a battery of the sensor, and the photosensitive circuit is configured to be powered by the battery.

10. The sensor of claim 1, wherein the cover portion comprises a plurality of snaps configured to be received in the channel of the base portion.

11. The sensor of claim 1, wherein the cover portion has a lens configured to direct light towards the photosensitive circuit.

12. The sensor of claim 1, wherein the sensor is configured to wirelessly transmit digital messages in response to the light intensity measured by the photosensitive circuit.

13. A sensor adapted to be mounted to a surface, the sensor comprising:

a photosensitive circuit for measuring a light intensity;

a base portion configured to be mounted to the surface, the base portion comprising a rear surface and a cylindrical wall configured to be connected to the rear surface, the wall having a channel formed therein adjacent to the rear surface;

a cover portion configured to be connected to the base portion, the cover portion comprising at least one snap captured in the channel and configured to move angularly through the channel to allow for rotation of the cover portion with respect to the base portion;

wherein the cover portion comprises a plurality of detents and the base portion comprises a post extending from the cylindrical wall and configured to be received in the detents of the cover portion to allow for rotation of the cover portion to a plurality of discrete positions.

14. The sensor of claim 13, wherein the detents are formed in a structure that is connected to the cover portion.

15. The sensor of claim 14, wherein the structure is configured to hold a battery of the sensor, and the photosensitive circuit is configured to be powered by the battery.

16. The sensor of claim 13, wherein the base potion comprises a second post extending towards the cylindrical wall of the cover portion, the second post also configured to be received in the detents of the cover portion.

17. The sensor of claim 13, wherein the cover portion comprises a plurality of snaps configured to be received in the channel of the base portion.

18. The sensor of claim 13, wherein the cover portion has a lens configured to direct light towards the photosensitive circuit.

19. The sensor of claim 13, wherein the cover portion is configured to be fully rotated with respect to the base portion.

20. The sensor of claim 13, wherein the sensor is configured to wirelessly transmit digital messages in response to the light intensity measured by the photosensitive circuit.