Photosensitive element assembly
First Claim
Patent Images
1. A sensor assembly, comprising:
- a housing having a major face and a side edge, wherein at least a portion of the major face and at least a portion of the side edge are formed of a material that is capable of conducting light;
a photosensitive element positioned within the housing, wherein the photosensitive element comprises a front face that faces the major face of the housing; and
a reflector positioned within the housing, the reflector shaped to direct light entering through the side edge onto the photosensitive element, andwherein the reflector is further configured to block the front face of the photosensitive element from being exposed to light entering through the at least portion of the major face in a direction normal to a plane containing the front face of the photosensitive element.
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Accused Products
Abstract
A sensor assembly comprises a housing having a major face and a side edge. The side edge is formed of a material that is capable of conducting light. A photosensitive element is positioned within the housing and facing the major face of the housing. A reflector is positioned within the housing. The reflector is shaped to direct light entering through the side edge onto the photosensitive element.
47 Citations
40 Claims
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1. A sensor assembly, comprising:
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a housing having a major face and a side edge, wherein at least a portion of the major face and at least a portion of the side edge are formed of a material that is capable of conducting light; a photosensitive element positioned within the housing, wherein the photosensitive element comprises a front face that faces the major face of the housing; and a reflector positioned within the housing, the reflector shaped to direct light entering through the side edge onto the photosensitive element, and wherein the reflector is further configured to block the front face of the photosensitive element from being exposed to light entering through the at least portion of the major face in a direction normal to a plane containing the front face of the photosensitive element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A controller for use in a load control system for controlling an electrical load, the controller comprising:
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a processor configured to; combine a first sensor signal and a second sensor signal from at least a first sensor assembly and a second sensor assembly, respectively, the first and second sensor signals representing light levels at a window, the first and second sensor assemblies oriented so that the first sensor assembly has a maximum response to light entering a housing of the first sensor assembly at a first angle with respect to a normal of a plane of the window and the second sensor assembly has a maximum response to light entering a housing of the second sensor assembly at a second angle with respect to the normal of the plane of the window; and transmit a command to automatically control the electrical load based on the combined first and second sensor signals, wherein the housing of the first sensor assembly has a major face and a side edge, wherein at least a portion of the major face and at least a portion of the side edge are formed of a material that is capable of conducting light, and wherein the first sensor assembly further comprises; a photosensitive element positioned within the housing of the first sensor assembly, wherein the photosensitive element comprises a front face that faces the major face; and a reflector positioned within the housing of the first sensor assembly, the reflector shaped to direct light entering through the side edge onto the photosensitive element, and wherein the reflector is further configured to block the front face of the photosensitive element from being exposed to light entering through the at least portion of the major face in a direction normal to a plane containing the front face of the photosensitive element. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A system comprising:
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at least one motorized window treatment positioned adjacent to at least one window on a faç
ade of a building, the at least one motorized window treatment having a motor drive unit for varying a position of the at least one window treatment;at least a first sensor assembly and a second sensor assembly for generating respective first and second sensor signals representing light levels at the at least one window, the first and second sensor assemblies oriented so that the first sensor assembly has a first field of view, the second sensor assembly has a second field of view different from the first field of view, and the first and second fields of view are symmetric about a direction normal to a major face of the at least one window, and wherein the first sensor assembly comprises; a housing having a major face and a side edge, wherein at least a portion of the major face and at least a portion of the side edge are formed of a material that is capable of conducting light; a photosensitive element positioned within the housing of the first sensor assembly, wherein the photosensitive element comprises a front face that faces the major face; and a reflector positioned within the housing of the first sensor assembly, the reflector shaped to direct light entering through the side edge onto the photosensitive element, and wherein the reflector is further configured to block the front face of the photosensitive element from being exposed to light entering through the at least portion of the major face in a direction normal to a plane containing the front face of the photosensitive element; and a controller configured to combine a first sensor signal from the first sensor assembly and a second sensor signal from the second sensor assembly, and to transmit to the motor drive unit a command to automatically adjust a position of the at least one window treatment based on the combined first and second sensor signals. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method comprising:
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combining a first sensor signal and a second sensor signal from at least a first sensor assembly and a second sensor assembly, respectively, the first and second sensor signals representing light levels at a window, the first sensor assembly having a first field of view, the second sensor assembly having a second field of view different from the first field of view, the first and second fields of view being symmetric about a direction normal to a major face of the window, and transmitting a command to automatically adjust a position of a motorized window treatment based on the combined first and second sensor signals, wherein the first sensor assembly comprises; a housing having a major face and a side edge, wherein at least a portion of the major face and at least a portion of the side edge are formed of a material that is capable of conducting light; a photosensitive element positioned within the housing, wherein the photosensitive element comprises a front face that faces the major face of the housing; and a reflector positioned within the housing, the reflector shaped to direct light entering through the side edge onto the photosensitive element, and wherein the reflector is further configured to block the front face of the photosensitive element from being exposed to light entering through the at least portion of the major face in a direction normal to a plane containing the front face of the photosensitive element. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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Specification