Light source unit
First Claim
1. A light source unit, comprising:
- a light source portion, comprising;
a mounting board;
a light emitting element mounted on the mounting board;
a rectangular solid sealing material for sealing the light emitting element, the sealing material comprising a first distance between the light emitting element and a top face thereof and a second distance between the light emitting element and a side face thereof, the first distance being greater than the second distance; and
a phosphor dispersed in the sealing material for radiating a wavelength conversion light by being excited by light emitted from the light emitting element,wherein a first light emitted through the top face of the sealing material is different in emission color from a second light emitted through the side face of the sealing material;
an optical connection member comprising a reflection surface for reflecting light emitted from the side face of the sealing material;
a light guiding member comprising an end face through which light emitted through the top face of the sealing material and light reflected by the reflection surface of the optical connection member are inputted into the light guiding member; and
a space formed between the sealing material and the optical connection member,wherein the light source portion comprises a plurality of the light emitting elements, the plurality of the light emitting element being arranged in line,wherein the rectangular solid sealing material has a dimension in a vertical direction longer than a dimension in a width direction,wherein the optical connection member comprises a pair of the reflection surface formed in the width direction, andwherein the light guiding member is plate-shaped and a thickness direction thereof corresponds to the width direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A light source unit includes a light source portion including a mounting board, a light emitting element mounted on the mounting board, a rectangular solid sealing material for sealing the light emitting element, the sealing material including a first distance between the light emitting element and a top face thereof and a second distance between the light emitting element and a side face thereof, the first distance being greater than the second distance and a phosphor dispersed in the sealing material for radiating a wavelength conversion light by being excited by light emitted from the light emitting element, wherein a first light emitted through the top face of the sealing material is different in emission color from a second light emitted through the side face of the sealing material. The light source unit further includes an optical connection member including a reflection surface for reflecting light emitted from the side face of the sealing material, and a light guiding member including an end face through which light emitted through the top face of the sealing material and light reflected by the reflection surface of the optical connection member are inputted into the light guiding member.
21 Citations
21 Claims
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1. A light source unit, comprising:
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a light source portion, comprising; a mounting board; a light emitting element mounted on the mounting board; a rectangular solid sealing material for sealing the light emitting element, the sealing material comprising a first distance between the light emitting element and a top face thereof and a second distance between the light emitting element and a side face thereof, the first distance being greater than the second distance; and a phosphor dispersed in the sealing material for radiating a wavelength conversion light by being excited by light emitted from the light emitting element, wherein a first light emitted through the top face of the sealing material is different in emission color from a second light emitted through the side face of the sealing material; an optical connection member comprising a reflection surface for reflecting light emitted from the side face of the sealing material; a light guiding member comprising an end face through which light emitted through the top face of the sealing material and light reflected by the reflection surface of the optical connection member are inputted into the light guiding member; and a space formed between the sealing material and the optical connection member, wherein the light source portion comprises a plurality of the light emitting elements, the plurality of the light emitting element being arranged in line, wherein the rectangular solid sealing material has a dimension in a vertical direction longer than a dimension in a width direction, wherein the optical connection member comprises a pair of the reflection surface formed in the width direction, and wherein the light guiding member is plate-shaped and a thickness direction thereof corresponds to the width direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 21)
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12. The light source unit according to line 11, wherein the output surface is formed so that a light outputted parallel to a center axis of the light source portion is scattered within about 15 degrees to the center axis.
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17. A light source unit, comprising,
a mounting board; -
a light emitting element connected to the mounting board; a rectangular solid sealing material that seals the light emitting element, the rectangular solid sealing material comprising a first distance between the light emitting element and a top face thereof and a second distance between the light emitting element and a side face thereof, the first distance being greater than the second distance; and a phosphor dispersed in the sealing material; an optical connection member comprising a reflection surface; and a light guiding member comprising an end face through which light emitted through a top surface of the sealing material and light reflected by the reflection surface are inputted into the light guidance member, wherein a relationship;
√
{square root over (2)}≦
a/b is satisfied, where the first distance comprises a and the second distance comprises b,wherein the light source portion comprises a plurality of the light emitting elements, the plurality of the light emitting element being arranged in line, wherein the rectangular solid sealing material has a dimension in a vertical direction longer than a dimension in a width direction, wherein the optical connection member comprises a pair of the reflection surface formed in the width direction, and wherein the light guiding member is plate-shaped and a thickness direction thereof corresponds to the width direction. - View Dependent Claims (18, 19, 20)
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Specification