US6319425B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent coating member for light-emitting diodes and a fluorescent color light source
Assignee: Sanken Electric Co Ltd
•
Filing: 2000-02-08
•
Granted: 2001-11-20
•
Expires: 2020-02-08
Abstract
Abstract This invention relates to a transparent coating member mountable on a light-emitting diode including a fluorescent substance and a light diffusion substance including calcium carbonate in order to reduce color variation at various locations of a transparent coating member and also reduce manufacturing costs of the transparent coating member without significantly lower the level of chromaticity. Furthermore, this invention relates to a transparent coating member mountable on a light-emitting diode (LED) including a fluorescent substance and a light storing pigment. This structure allows an exhibition of afterglow of the transparent coating member after turning off the light in a room so that locating the position of the transparent coating member is made easier thereafter. The light diffusion substance and the light storing pigment can be added to the transparent coating member to acquire both advantages derived from respective substances.
Inventors
- 👤 Masutsugu Tasaki
- 👤 Akira Ichikawa
- 👤 Tsutomu Odaki
- 👤 Kazuhisa Takagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:11
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/85; H10H20/851; H10H20/8515; H10W; H10W90/00; H10W90/701; H10W90/751; H10W90/756
Claims Analysis
Total Claims: 54
Claim 1
Independent Claim
48 words
A method of producing a transparent coating member, comprising: providing a silicone rubber material and a fluorescent substance together in a manner so that a coating member is formed having an upper and a lower surfaces; and sand blasting at least one of the upper and lower surfaces.
Claim 2
Independent Claim
48 words
A method of producing a transparent coating member, comprising: providing a silicone rubber material and a fluorescent substance together in a manner so that a coating member is formed having an upper and a lower surfaces; and sand blasting at least one of the upper and lower surfaces.
Claim 3
Dependent Claim
30 words
The method of producing a transparent coating member according to claim 1 , wherein said step of sand blasting is done at on both the upper and the lower surfaces.
Claim 4
Dependent Claim
26 words
A The method of producing a transparent coating member according to claim 2 , wherein said step of sand blasting is done at a #100 level.
Claim 5
Dependent Claim
82 words
The method of producing a transparent coating as defined in claim 1 , wherein said step of providing includes using a YAG fluophor and molding the silicone rubber and the YAG fluophor into a cap shape material in a die cast mold; and said method further comprising the step of: removing the molded material from the die cast mold followed by said step of sand blasting, wherein said step of sand blasting includes sand blasting both the upper and the lower surfaces.
Claim 6
Dependent Claim
38 words
A molded transparent covering member having a size so as to be mountable on a housing of a light-emitting diode, comprising: a molded main body, said molded main body including: a fluorescent substance; and a light diffusion substance.
Claim 7
Dependent Claim
38 words
A molded transparent covering member having a size so as to be mountable on a housing of a light-emitting diode, comprising: a molded main body, said molded main body including: a fluorescent substance; and a light diffusion substance.
Claim 8
Dependent Claim
30 words
A molded transparent covering member as defined in claim 5 , wherein said light diffusion substance includes at least 97% of calcium carbonate and at most 3% of barium stearate.
Claim 9
Dependent Claim
62 words
A molded transparent covering member as defined in claim 5 , wherein said light diffusion substance includes a material selected from a group consisting of flower of zinc; lead white; basic lead sulfate; lead sulfate; lithopone; zinc sulfide; titanium oxide; antimony oxide; calcium carbonate; calcium phosphate; aluminum silicate; magnesium silicate; calcium silicate; silica; magnesium oxide; magnesium carbonate; aluminum hydroxide; and magnesium hydroxide.
Claim 10
Dependent Claim
19 words
A molded transparent covering member as defined in claim 5 , wherein said fluorescent substance includes a YAG fluophor.
Claim 11
Dependent Claim
23 words
A molded transparent covering member as defined in claim 5 , wherein said fluorescent substance includes Y 3 Al 5 O 12 :Ce.
Claim 12
Dependent Claim
21 words
A molded transparent covering member as defined in claim 5 , further comprising a silicon rubber material and a curing agent.
Claim 13
Dependent Claim
32 words
A molded transparent covering member as defined in claim 5 , wherein the light diffusion substance is included in an amount that is inversely proportional to an amount of the YAG fluophor.
Claim 14
Dependent Claim
29 words
A molded transparent covering member as defined in claim 5 , wherein said molded main body has a recessed region formed in a surface of said molded main body.
Claim 15
Dependent Claim
42 words
A molded transparent covering member as defined in claim 5 , wherein said molded main body has a size so as to provide a close contact fit when said molded transparent covering member is disposed on the housing of the light-emitting diode.
Claim 16
Dependent Claim
36 words
A transparent covering member to be disposed on a housing of a light-emitting diode, comprising: a main body having a substantially U-shaped cross-section, said main body further including: a fluorescent substance; and a light diffusion substance.
Claim 17
Dependent Claim
36 words
A transparent covering member to be disposed on a housing of a light-emitting diode, comprising: a main body having a substantially U-shaped cross-section, said main body further including: a fluorescent substance; and a light diffusion substance.
Claim 18
Dependent Claim
29 words
A transparent covering member as defined in claim 14 , wherein said light diffusion substance includes at least 97% of calcium carbonate and at most 3% of barium stearate.
Claim 19
Dependent Claim
61 words
A transparent covering member as defined in claim 14 , wherein said light diffusion substance includes a material selected from a group consisting of flower of zinc; lead white; basic lead sulfate; lead sulfate; lithopone; zinc sulfide; titanium oxide; antimony oxide; calcium carbonate; calcium phosphate; aluminum silicate; magnesium silicate; calcium silicate; silica; magnesium oxide; magnesium carbonate; aluminum hydroxide; and magnesium hydroxide.
Claim 20
Dependent Claim
18 words
A transparent covering member as defined in claim 14 , wherein said fluorescent substance includes a YAG fluophor.
Claim 21
Dependent Claim
22 words
A transparent covering member as defined in claim 14 , wherein said fluorescent substance includes Y 3 Al 5 O 12 :Ce.
Claim 22
Dependent Claim
20 words
A transparent covering member as defined in claim 14 , further comprising a silicon rubber material and a curing agent.
Claim 23
Dependent Claim
31 words
A transparent covering member as defined in claim 14 , wherein the light diffusion substance is included in an amount that is inversely proportional to an amount of the YAG fluophor.
Claim 24
Dependent Claim
26 words
A transparent covering member as defined in claim 14 , wherein said main body has a recessed region formed in a surface of said main body.
Claim 25
Dependent Claim
39 words
A transparent covering member as defined in claim 14 , wherein said main body has a size so as to provide a close contact fit when said transparent covering member is disposed on the housing of the light-emitting diode.
Claim 26
Dependent Claim
43 words
A transparent covering member to be disposed on a housing of a light-emitting diode, comprising: a main body having at least one planar surface and at least one side edge, said main body further including: a fluorescent substance; and a light diffusion substance.
Claim 27
Dependent Claim
43 words
A transparent covering member to be disposed on a housing of a light-emitting diode, comprising: a main body having at least one planar surface and at least one side edge, said main body further including: a fluorescent substance; and a light diffusion substance.
Claim 28
Dependent Claim
29 words
A transparent covering member as defined in claim 23 , wherein said light diffusion substance includes at least 97% of calcium carbonate and at most 3% of barium stearate.
Claim 29
Dependent Claim
61 words
A transparent covering member as defined in claim 23 , wherein said light diffusion substance includes a material selected from a group consisting of flower of zinc; lead white; basic lead sulfate; lead sulfate; lithopone; zinc sulfide; titanium oxide; antimony oxide; calcium carbonate; calcium phosphate; aluminum silicate; magnesium silicate; calcium silicate; silica; magnesium oxide; magnesium carbonate; aluminum hydroxide; and magnesium hydroxide.
Claim 30
Dependent Claim
18 words
A transparent covering member as defined in claim 23 , wherein said fluorescent substance includes a YAG fluophor.
Claim 31
Dependent Claim
22 words
A transparent covering member as defined in claim 23 , wherein said fluorescent substance includes Y 3 Al 5 O 12 :Ce.
Claim 32
Dependent Claim
20 words
A transparent covering member as defined in claim 23 , further comprising a silicon rubber material and a curing agent.
Claim 33
Dependent Claim
31 words
A transparent covering member as defined in claim 23 , wherein the light diffusion substance is included in an amount that is inversely proportional to an amount of the YAG fluophor.
Claim 34
Dependent Claim
26 words
A transparent covering member as defined in claim 23 , wherein said main body has a recessed region formed in a surface of said main body.
Claim 35
Dependent Claim
39 words
A transparent covering member as defined in claim 23 , wherein said main body has a size so as to provide a close contact fit when said transparent covering member is disposed on the housing of the light-emitting diode.
Claim 36
Dependent Claim
37 words
A transparent covering member to be disposed on a housing of a light-emitting diode, comprising: a main body having at least one textured surface, said main body further including: a fluorescent substance; and a light diffusion substance.
Claim 37
Dependent Claim
37 words
A transparent covering member to be disposed on a housing of a light-emitting diode, comprising: a main body having at least one textured surface, said main body further including: a fluorescent substance; and a light diffusion substance.
Claim 38
Dependent Claim
29 words
A transparent covering member as defined in claim 32 , wherein said light diffusion substance includes at least 97% of calcium carbonate and at most 3% of barium stearate.
Claim 39
Dependent Claim
61 words
A transparent covering member as defined in claim 32 , wherein said light diffusion substance includes a material selected from a group consisting of flower of zinc; lead white; basic lead sulfate; lead sulfate; lithopone; zinc sulfide; titanium oxide; antimony oxide; calcium carbonate; calcium phosphate; aluminum silicate; magnesium silicate; calcium silicate; silica; magnesium oxide; magnesium carbonate; aluminum hydroxide; and magnesium hydroxide.
Claim 40
Dependent Claim
18 words
A transparent covering member as defined in claim 32 , wherein said fluorescent substance includes a YAG fluophor.
Claim 41
Dependent Claim
20 words
A transparent covering member as defined in claim wherein said fluorescent substance includes Y 3 Al 5 O 12 :Ce.
Claim 42
Dependent Claim
20 words
A transparent covering member as defined in claim 32 , further comprising a silicon rubber material and a curing agent.
Claim 43
Dependent Claim
31 words
A transparent covering member as defined in claim 32 , wherein the light diffusion substance is included in an amount that is inversely proportional to an amount of the YAG fluophor.
Claim 44
Dependent Claim
26 words
A transparent covering member as defined in claim 32 , wherein said main body has a recessed region formed in a surface of said main body.
Claim 45
Dependent Claim
39 words
A transparent covering member as defined in claim 32 , wherein said main body has a size so as to provide a close contact fit when said transparent covering member is disposed on the housing of the light-emitting diode.
Claim 46
Dependent Claim
37 words
A molded transparent covering member to be disposed on a housing of a light-emitting diode, comprising: a molded main body having a uniform thickness, said main body further including: a fluorescent substance; and a light diffusion substance.
Claim 47
Dependent Claim
37 words
A molded transparent covering member to be disposed on a housing of a light-emitting diode, comprising: a molded main body having a uniform thickness, said main body further including: a fluorescent substance; and a light diffusion substance.
Claim 48
Dependent Claim
30 words
A molded transparent covering member as defined in claim 41 , wherein said light diffusion substance includes at least 97% of calcium carbonate and at most 3% of barium stearate.
Claim 49
Dependent Claim
62 words
A molded transparent covering member as defined in claim 41 , wherein said light diffusion substance includes a material selected from a group consisting of flower of zinc; lead white; basic lead sulfate; lead sulfate; lithopone; zinc sulfide; titanium oxide; antimony oxide; calcium carbonate; calcium phosphate; aluminum silicate; magnesium silicate; calcium silicate; silica; magnesium oxide; magnesium carbonate; aluminum hydroxide; and magnesium hydroxide.
Claim 50
Dependent Claim
19 words
A molded transparent covering member as defined in claim 41 , wherein said fluorescent substance includes a YAG fluophor.
Claim 51
Dependent Claim
23 words
A molded transparent covering member as defined in claim 41 , wherein said fluorescent substance includes Y 3 Al 5 O 12 :Ce.
Claim 52
Dependent Claim
21 words
A molded transparent covering member as defined in claim 41 , further comprising a silicon rubber material and a curing agent.
Claim 53
Dependent Claim
32 words
A molded transparent covering member as defined in claim 41 , wherein the light diffusion substance is included in an amount that is inversely proportional to an amount of the YAG fluophor.
Claim 54
Dependent Claim
42 words
A molded transparent covering member as defined in claim 41 , wherein said molded main body has a size so as to provide a close contact fit when said molded transparent covering member is disposed on the housing of the light-emitting diode.
References Cited (Backward Citations)
US3593055A
Cited
US3932881A
Cited
US3959655A
Cited
US4599537A
Cited
DE3804293A1
Cited
JPH07176794A
Cited
US5655826A
Cited
WO1997050132A1
Cited
US5998925A
Cited
US6066861A
Cited
US6084250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-11-19 | 2005-05-21 | 2005-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-11-19 | 2009-05-21 | 2009-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-11-19 | 2013-05-21 | 2013-11-20 | $7700.00 | Window Closed / Lapsed |