Lighting apparatus and image pickup apparatus
First Claim
1. A lighting apparatus comprising:
- a light source;
an optical member which is placed in front of said light source and provided with a reflecting surface to reflect light from said light source forward;
wherein said optical member includes a plurality of pairs of said reflecting surfaces arranged on both sides of the optical axis within a plane including the radial direction of said light source in the direction perpendicular to the optical axis.
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Accused Products
Abstract
The present invention discloses a lighting apparatus including a light source, an optical member that is placed in front of the light source and provided with a reflecting surface for reflecting light from the light source or prism sections each made up of a refracting surface which receives the light incident from the light source and a reflecting surface for reflecting the light incident from this refracting surface. Here, in the optical member, there is a plurality of pairs of the reflecting surfaces or prism sections arranged in the direction perpendicular to the optical axis within a plane including the radial direction of the light source centered on the optical axis. The present invention can provide a low-profile lighting apparatus using light from the light source with high efficiency.
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Citations
65 Claims
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1. A lighting apparatus comprising:
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a light source;
an optical member which is placed in front of said light source and provided with a reflecting surface to reflect light from said light source forward;
wherein said optical member includes a plurality of pairs of said reflecting surfaces arranged on both sides of the optical axis within a plane including the radial direction of said light source in the direction perpendicular to the optical axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An image pickup apparatus comprising:
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a light source; and
an optical member which is placed in front of said light source and provided with a reflecting surface that reflects light from said light source forward, wherein a plurality of pairs of said reflecting surfaces is formed on said optical member, arranged on both sides of the optical axis within a plane including the radial direction of said light source in the direction perpendicular to the optical axis. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A lighting apparatus comprising:
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a light source;
an optical member which is placed in front of said light source; and
a reflection member which is placed in such a way as to cover the back of said light source and a front space between said light source and said optical member, and reflects light irradiated from said light source forward, wherein said optical member comprises;
a lens section which is placed on and close to the optical axis on the entrance surface side of said optical member and has positive refracting power; and
a reflecting section which is placed to peripheral side of said lens section, provided closer to the optical axis than the area through which the light reflected by the part of said reflection member covering said front space passes, and reflects light from said light source forward. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A lighting apparatus comprising:
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a light source;
an optical member which is placed in front of said light source and provided with a lens section having positive refracting power and being placed on and close to the optical axis on the entrance surface side of this optical member;
a first reflection member which is placed in such a way as to cover the back of said light source and a front space between said light source and said optical member and reflects light emitted from said light source forward; and
a second reflection member which is placed to peripheral side of said lens section near the entrance surface of said optical member and provided closer to the optical axis than the area through which the light reflected by the part of said first reflection member covering said front space passes and reflects light from said light source forward. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. An image pickup apparatus comprising:
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a light source;
an optical member which is placed in front of said light source; and
a reflection member which is placed in such a way as to cover the back of said light source and a front space between said light source and said optical member and reflects light emitted from said light source forward, wherein said optical member comprises;
a lens section which is placed on and close to the optical axis on the entrance surface side of said optical member and has positive refracting power; and
a reflecting section which is placed to peripheral side of said lens section and closer to the optical axis than the area through which the light reflected by the part of said reflection member covering said front space passes, and reflects light from said light source forward. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. An image pickup apparatus comprising:
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a light source;
an optical member which is placed in front of said light source and provided with a lens section having positive refracting power and being place on and close to the optical axis on the entrance surface side of this optical member;
a first reflection member which is placed in such a way as to cover the back of said light source and a front space between said light source and said optical member and reflects light emitted from said light source forward; and
a second reflection member which is placed to peripheral side of said lens section near the entrance surface of said optical member, provided closer to the optical axis than the area through which the light reflected by the part of said first reflection member covering said front space passes, and reflects light from said light source forward. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
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Specification