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US 10,883,700 B2Granted
Lens, light emitting device and method of manufacturing the lens and the light emitting device
AssigneeNichia Corporation
InventorsTsuyoshi Okahisa, Toshiyuki Fujii
Life of this patent
Estimating the term…
Abstract
A lens includes a cover part and a light-shielding part. The cover part includes a lens part, a connection part, and a flange part which are formed of a thermosetting first resin and continuous to one another. The light-shielding part covers an outer lateral side of the connection part and is formed of a second resin having a greater light-absorptance or a greater light-reflectance than the first resin.
Claims9
A method of manufacturing a lens, the method comprising:
- forming a cover blank, the forming a cover blank comprising, injecting a thermosetting first resin in a first mold and curing the first resin, to form a cover blank having a plurality of cover parts, each of the cover parts including a lens part, a connection part connected to an outer periphery of the lens part, and a flange part connected to a lower-end portion of an outer periphery of the connection part, the lens part and the connection part defining a recess opening downward, the lens part defining a bottom surface of the recess and the connection part defining lateral surfaces of the recess and surrounding the opening of the recess, the flange part extending outward from a periphery of the recess, and, the lens part, the flange part, and the connection part being continuous to one another;
- removing a part or all parts of the first mold;
- arranging the cover blank in a second mold;
- forming a lens blank, the forming a lens blank comprising, injecting a thermosetting second resin having a greater light absorptance or a greater light reflectance than the first resin into the second mold, and curing the second resin, to form a lens blank having a light-shielding part between adjacent cover parts;
- and
- obtaining individual lenses, the obtaining individual lenses comprising, taking out the lens blank from the second mold, and cutting the lens blank at the light-shielding part located between the adjacent cover parts to obtain individual lenses each having an outer lateral side of the connection part covered by the light-shielding part.
3 more elements
A method of manufacturing a lens, the method comprising:
- forming a cover blank, the forming a cover blank comprising, injecting a thermosetting first resin in a first mold and curing the first resin, to form a cover blank having a plurality of cover parts, each of the cover parts including a lens part, a connection part connected to an outer periphery of the lens part, and a flange part connected to a lower-end portion of an outer periphery of the connection part, and, the lens part, the flange part, and the connection part being continuous to one another, with a thickness of the flange part in a range of 5 μm to 30 μm;
- removing a part or all parts of the first mold;
- arranging the cover blank in a second mold;
- forming a lens blank, the forming a lens blank comprising, injecting a thermosetting second resin having a greater light absorptance or a greater light reflectance than the first resin into the second mold and curing the second resin, to form a lens blank having a light-shielding part between adjacent cover parts;
- and
- obtaining individual lenses, the obtaining individual lenses comprising, taking out the lens blank from the second mold, and cutting the lens blank at the light-shielding part located between the adjacent cover parts to obtain individual lenses each having an outer lateral side of the connection part covered by the light-shielding part.
3 more elements
A method of manufacturing a lens, the method comprising:
- forming a cover blank, the forming a cover blank comprising, injecting a thermosetting first resin in a first mold and curing the first resin, to form a cover blank having a plurality of cover parts, each of the cover parts including a lens part, a connection part connected to an outer periphery of the lens part, and a flange part connected to a lower-end portion of an outer periphery of the connection part, and, the lens part, the flange part, and the connection part being continuous to one another;
- removing the first mold;
- cutting the cover blank at the flange part located between adjacent cover parts;
- arranging the cut cover blank in a second mold;
- forming a lens blank, the forming a lens blank comprising, injecting a thermosetting second resin having a greater light absorptance or a greater light reflectance than the first resin into the second mold and curing the second resin to form a lens blank having a light-shielding part between adjacent cover parts;
- and
- obtaining individual lenses, the obtaining individual lenses comprising, taking out the lens blank from the second mold, and cutting the lens blank at the light-shielding part located between the adjacent cover parts to obtain individual lenses each having an outer lateral side of the connection part covered by the light-shielding part and an outer end surface of the flange part covered by the light-shielding part.
4 more elements
Dependencies are inferred from the claim text.