Lighting device and lighting method
First Claim
1. A lighting device, comprising:
- at least a first solid state lighting device; and
at least a first patterned diffuser, said first solid state lighting device positioned relative to said first patterned diffuser such that if said first solid state lighting device is illuminated so that said first solid state lighting device emits light, at least some of said light emitted by said first solid state lighting device enters said first patterned diffuser and exits said patterned diffuser, said patterned diffuser comprising a plurality of optical features such that at least 50% of light that enters said patterned diffuser exits said patterned diffuser within an exit pattern, regardless of an entrance pattern of the light that enters said patterned diffuser.
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Accused Products
Abstract
A lighting device which comprises at least a first solid state lighting device; and at least a first patterned diffuser which comprises a plurality of optical features. If the first solid state lighting device is illuminated, at least some of the light emitted by the first solid state lighting device enters the first patterned diffuser and exits the patterned diffuser. In some embodiments, the patterned diffuser emits light in a specific shape (e.g., substantially square, rectangular, hexagonal or octagonal). In some embodiments, optical features are positioned on the first surface of the side of the first patterned diffuser that the emitted light enters. Also, a method of lighting which comprises illuminating one (or more) solid state lighting device which emits light which enters a patterned diffuser which comprises a plurality of optical features, and exits the patterned diffuser.
84 Citations
17 Claims
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1. A lighting device, comprising:
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at least a first solid state lighting device; and at least a first patterned diffuser, said first solid state lighting device positioned relative to said first patterned diffuser such that if said first solid state lighting device is illuminated so that said first solid state lighting device emits light, at least some of said light emitted by said first solid state lighting device enters said first patterned diffuser and exits said patterned diffuser, said patterned diffuser comprising a plurality of optical features such that at least 50% of light that enters said patterned diffuser exits said patterned diffuser within an exit pattern, regardless of an entrance pattern of the light that enters said patterned diffuser. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of lighting, comprising:
illuminating at least a first solid state lighting device so that said first solid state lighting device emits light, such that at least some of said light emitted by said first solid state lighting device enters a patterned diffuser and exits said patterned diffuser, said patterned diffuser comprising a plurality of optical features, such that at least 50% of said light emitted by said first solid state lighting device that enters said patterned diffuser exits said patterned diffuser within an exit pattern, regardless of an entrance pattern of the light that enters said patterned diffuser. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A lighting device, comprising:
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at least a first solid state lighting device; and at least a first patterned diffuser, said first solid state lighting device positioned relative to said first patterned diffuser such that if said first solid state lighting device is illuminated so that said first solid state lighting device emits light, at least some of said light emitted by said first solid state lighting device enters said first patterned diffuser and exits said patterned diffuser, said patterned diffuser comprising a plurality of optical features such that at least 50% of light that enters said patterned diffuser exits said patterned diffuser within an exit pattern, said exit pattern the same for all possible entrance patterns of light entering said patterned diffuser.
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Specification