Lighting apparatus
First Claim
1. A lighting apparatus, comprising:
- a luminescent panel having a light emitting portion for emitting isotropic light and a non-light emitting portion; and
a brightness compensating member having an incident portion, on which light is incident, and a light exit portion, through which light exits, wherein the incident portion includes at least one inclined surface that is inclined relative to the light exit portion, wherein the inclined surface is arranged to correspond to the non-light emitting portion and is configured so that the brightness of a section of the brightness compensating member that corresponds to the light emitting portion is substantially equal to the brightness of a section of the brightness compensating member that corresponds to the non-light emitting portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A luminescent panel has a light emitting portion for emitting isotropic light and a non-light emitting portion. A brightness compensating member has an incident portion and a light exit portion. The incident portion includes at least one inclined surface that is inclined relative to the light exit portion. The inclined surface is arranged to correspond to the non-light emitting portion. The inclined surface is configured so that the brightness of a section of the brightness compensating member that corresponds to the light emitting portion is substantially equal to the brightness of a section of the brightness compensating member that corresponds to the non-light emitting portion. Therefore, a substantially uniform brightness is obtained from the light exit portion.
28 Citations
28 Claims
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1. A lighting apparatus, comprising:
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a luminescent panel having a light emitting portion for emitting isotropic light and a non-light emitting portion; and
a brightness compensating member having an incident portion, on which light is incident, and a light exit portion, through which light exits, wherein the incident portion includes at least one inclined surface that is inclined relative to the light exit portion, wherein the inclined surface is arranged to correspond to the non-light emitting portion and is configured so that the brightness of a section of the brightness compensating member that corresponds to the light emitting portion is substantially equal to the brightness of a section of the brightness compensating member that corresponds to the non-light emitting portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A lighting apparatus, comprising:
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a plurality of luminescent panels each having a light emitting portion for emitting isotropic light and a non-light emitting portion provided around the light emitting portion, wherein the luminescent panels are arranged so that the non-light emitting portions are adjacent to each other; and
a brightness compensating member that is formed of a transparent plate and is arranged at a side of the luminescent panels through which light exits to correspond to the luminescent panels, wherein a surface of the brightness compensating member that faces the luminescent panels has a V-shaped groove that extends along the non-light emitting portions, wherein the V-shaped groove is formed so that the brightness of a section of the brightness compensating member that corresponds to the light emitting portion is substantially equal to the brightness of a section of the brightness compensating member that corresponds to the non-light emitting portions. - View Dependent Claims (25, 26)
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27. A lighting apparatus, comprising:
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a plurality of adjoining luminescent panels each having a light emitting portion for emitting isotropic light and an auxiliary electrode, wherein a section of each luminescent panel on which the auxiliary electrode is formed forms a non-light emitting portion; and
a brightness compensating member that is formed of a transparent plate and is arranged at a side of the luminescent panels through which light exits to correspond to the luminescent panels, wherein a surface of the brightness compensating member that faces the luminescent panels has a V-shaped groove that is arranged to correspond to the non-light emitting portions, wherein the V-shaped groove is formed so that the brightness of a section of the brightness compensating member that corresponds to the light emitting portions is substantially equal to the brightness of a section of the brightness compensating member that corresponds to the non-light emitting portions.
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28. A lighting apparatus, comprising:
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a plurality of luminescent panels each having a light emitting portion for emitting isotropic light and a non-light emitting portion provided around the light emitting portion, wherein the luminescent panels are arranged so that the non-light emitting portions are adjacent to each other; and
a brightness compensating member that is formed of a transparent plate and is arranged at a side of the luminescent panels through which light exits to correspond to the luminescent panels, wherein a surface of the brightness compensating member that faces the luminescent panels has a V-shaped groove that extends along the non-light emitting portions, wherein the V-shaped groove is formed so that the brightness of a section of the brightness compensating member that corresponds to the non-light emitting portion is increased to approaches the brightness of a section of the brightness compensating member that corresponds to the light emitting portions.
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Specification