WO2005010924A1 - An incandescent of heatproof oxide coating - Google Patents
An incandescent of heatproof oxide coating Download PDFInfo
- Publication number
- WO2005010924A1 WO2005010924A1 PCT/KR2004/001846 KR2004001846W WO2005010924A1 WO 2005010924 A1 WO2005010924 A1 WO 2005010924A1 KR 2004001846 W KR2004001846 W KR 2004001846W WO 2005010924 A1 WO2005010924 A1 WO 2005010924A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oxide
- incandescent lamp
- emitting bulb
- light
- heatproof
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/18—Mountings or supports for the incandescent body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
- H01K1/325—Reflecting coating
Definitions
- the present invention relates to an incandescent lamp, and more particularly, to a
- heatproof oxide-coated incandescent lamp having an oxide film formed on an outer surface of
- a vehicle lamp unit consists of a reflective plate, a front lens provided on a
- the front lens is made of a transparent material.
- incandescent lamp provided inside of a vehicle sometimes uses a colored light-emitting bulb.
- the color of the light-emitting bulb shows through
- the incandescent lamp requires an additional cover to prevent the color of the light-emitting
- incandescent lamp where a colored light-emitting bulb is coated with chrome, whereby the
- incandescent lamp has a metallic color.
- FIG. 1 is a cross-sectional view showing a vehicle lamp unit equipped with a heatproof
- An object of the present invention is to provide a heatproof oxide-coated incandescent
- incandescent lamp comprising a light-emitting bulb 5 and an oxide film 6 formed on an outer
- the oxide film 6 is composed of an oxide particle, which is made by coating an oxide having a low index of refraction with an oxide having a high index of refraction, and an inorganic polymer made of silica and titanium oxide.
- the oxide particle is made of a mica particle coated with titanium
- the inorganic polymer is a solution made by hydrolysis of silicon
- incandescent lamp by use of the mica particle having a component ratio of between 3 and
- the mica particle having a component ratio of between 3 and 20% by taking the light intensity
- a vehicle lamp unit 1 can be manufactured at low cost and with a neat appearance.
- a transparent front lens 3 of a vehicle lamp unit 1 has the same metallic color as the
- the heatproof oxide-coated incandescent lamp 4 is not limited to the
- vehicle lamp unit 1 but may be employed in a typical lamp which should have a neat
- FIG. 1 is a perspective view showing a construction of a vehicle lamp unit 1.
- vehicle lamp unit 1 comprises a reflective plate 2, a transparent front lens 3 provided on a
- an oxide film 6 composed of a mica particle, which is coated with titanium oxide
- an inorganic polymer which is made of silica and titanium oxide.
- the mica particle composing the oxide film 6 has a diameter of 2 ⁇ 100 ⁇ m, and the titanium oxide coating rate is 10-50%.
- the inorganic polymer together with the mica particle, composing the
- oxide film 6 is a solution made by hydrolysis of silicon alkoxides and titanium alkoxides.
- the solution is made by mixing 30-60% silicon alkoxides hydrolyzed by 1-12 % water
- silicon alkoxides examples include trimethoxysilane (TMS), triethoxysilane
- TES methyltrimethoxysilane
- MTES methyltriethoxysilane
- titanium alkoxides include titanium tetra-n-butoxide, titanium ethoxide, and titanium
- solvents which are mixed with the inorganic polymer, include
- ethyl acetate isopropyl alcohol, ethanol, dipropylene glycol, etc.
- the oxide film 6 has a component ratio of a mica particle : an inorganic
- the mica particle coating ratio is preferably between 3 and 20%.
- a transparent front lens 3 of a vehicle lamp unit 1 has the same metallic color as the
- the heatproof oxide-coated incandescent lamp 4 is not limited to the
- vehicle lamp unit 1 but may be employed in a typical lamp which should have a neat
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The incandescent lamp provided inside of a vehicle sometimes uses a colored light-emitting bulb. However, there is a problem in that the color of the light-emitting bulb shows through around the reflective plate since the colored light-emitting bulb is not coated. In order to overcome the aforementioned problem, there has been provided an incandescent lamp where a colored light-emitting bulb is coated with chrome, whereby the incandescent lamp has a metallic color. Accordingly, an additional cover is not necessary besides a transparent front lens (3) since the color of the light-emitting bulb (5) is not visible, whereby a vehicle lamp unit (1) can be manufactured at low cost and with a neat appearance.
Description
AN INCANDESCENT OF HEATPROOF OXIDE COATING
Description:
Technical Field
The present invention relates to an incandescent lamp, and more particularly, to a
heatproof oxide-coated incandescent lamp having an oxide film formed on an outer surface of
a light-emitting bulb.
Background Art
In general, a vehicle lamp unit consists of a reflective plate, a front lens provided on a
front side of the reflective plate, and an incandescent lamp provided inside of the reflective
plate and the front lens. Recently, the front lens is made of a transparent material. The
incandescent lamp provided inside of a vehicle sometimes uses a colored light-emitting bulb. However, there is a problem in that the color of the light-emitting bulb shows through
around the reflective plate since the colored light-emitting bulb is not coated. Accordingly,
the incandescent lamp requires an additional cover to prevent the color of the light-emitting
bulb from showing through, resulting in an increase in the production cost of a vehicle lamp
unit.
In order to overcome the aforementioned problem, there has been provided an
incandescent lamp where a colored light-emitting bulb is coated with chrome, whereby the
incandescent lamp has a metallic color. However, there have occurred other problems that
environmental concerns, such as pollution resulting from the disposal of a foam agent, are left
out of consideration, and the light intensity of the incandescent lamp decreases remarkably.
Description of Drawings
The above and other features and advantages of the present invention will become
more apparent by describing in detail exemplary embodiments thereof with reference to the
attached drawings in which:
FIG. 1 is a cross-sectional view showing a vehicle lamp unit equipped with a heatproof
oxide-coated incandescent lamp according to the present invention.
Technical Problem
An object of the present invention is to provide a heatproof oxide-coated incandescent
lamp in which a metal-colored oxide film is formed on an outer surface of a colored light-
emitting bulb, and by which a vehicle lamp unit with a neat appearance can be provided.
In order to achieve the above object, there is provided a heatproof oxide-coated
incandescent lamp comprising a light-emitting bulb 5 and an oxide film 6 formed on an outer
surface of the light-emitting bulb 5, wherein the oxide film 6 is composed of an oxide particle, which is made by coating an oxide having a low index of refraction with an oxide having a high index of refraction, and an inorganic polymer made of silica and titanium oxide.
Technical Solution
According to the present invention, there is also provided a heatproof oxide-coated
incandescent lamp, wherein the oxide particle is made of a mica particle coated with titanium
oxide.
According to the present invention, there is also provided a heatproof oxide-coated
incandescent lamp, wherein the inorganic polymer is a solution made by hydrolysis of silicon
alkoxide and titanium alkoxide.
Therefore, it is possible to provide an oxide film which has a high heatproof property
and a metallic color due to a mica particle and an inorganic polymer formed on an outer
surface of a light-emitting bulb and can prevent a decrease in the light intensity of an
incandescent lamp by use of the mica particle having a component ratio of between 3 and
20% by taking the light intensity of an incandescent lamp into account.
Accordingly, an additional cover is not necessary besides a transparent front lens
since the color of the light-emitting bulb is not visible, whereby a vehicle lamp unit can be
manufactured at low cost and with a neat appearance.
Advantageous Effects
According to a heatproof oxide-coated incandescent lamp of the present invention, it
is possible to provide an oxide film 6, which has a high heatproof property and a metallic color
due to a mica particle and an inorganic polymer formed on an outer surface of a light-emitting
bulb 5 and can prevent a decrease in the light intensity of an incandescent lamp 4 by use of
the mica particle having a component ratio of between 3 and 20% by taking the light intensity
of an incandescent lamp 4 into account. Accordingly, an additional cover is not necessary
besides a transparent front lens 3 since the color of the light-emitting bulb 5 is not visible,
whereby a vehicle lamp unit 1 can be manufactured at low cost and with a neat appearance.
Best Mode
Since an oxide film 6, which is formed on an outer surface of a colored light-emitting
bulb 5 of a heatproof oxide-coated incandescent lamp 4 provided inside of a reflective plate 2
and a transparent front lens 3 of a vehicle lamp unit 1 , has the same metallic color as the
reflective plate 2, the color of the light-emitting bulb 5 is not visible and thus an additional
cover is not necessary besides the transparent front lens 3, whereby the vehicle lamp unit 1
can be manufactured at low cost and with a neat appearance.
Meanwhile, the heatproof oxide-coated incandescent lamp 4 is not limited to the
vehicle lamp unit 1 but may be employed in a typical lamp which should have a neat
appearance.
Mode for Invention
The present invention will now be described more fully with reference to the
accompanying drawings, in which exemplary embodiments of the invention are shown.
FIG. 1 is a perspective view showing a construction of a vehicle lamp unit 1. The
vehicle lamp unit 1 comprises a reflective plate 2, a transparent front lens 3 provided on a
front side of the reflective plate 2, an incandescent lamp 4 fixed on a top side of an inner
space surrounded by the reflective plate 2 and the front lens 3. On the outer surface of a light-emitting bulb 5 of the incandescent lamp 4, there is
applied an oxide film 6 composed of a mica particle, which is coated with titanium oxide, and
an inorganic polymer, which is made of silica and titanium oxide.
Here, the mica particle composing the oxide film 6 has a diameter of 2~100 μm, and
the titanium oxide coating rate is 10-50%.
In addition, the inorganic polymer, together with the mica particle, composing the
oxide film 6 is a solution made by hydrolysis of silicon alkoxides and titanium alkoxides.
That is, the solution is made by mixing 30-60% silicon alkoxides hydrolyzed by 1-12 % water
with 2~30% titanium alkoxides and then adding 0.0~3.0% viscosity-enhancement agent
thereto.
Here, examples of silicon alkoxides include trimethoxysilane (TMS), triethoxysilane
(TES), methyltrimethoxysilane (MTMS), and methyltriethoxysilane (MTES). Examples of
titanium alkoxides include titanium tetra-n-butoxide, titanium ethoxide, and titanium
isoproxide.
In addition, examples of solvents, which are mixed with the inorganic polymer, include
ethyl acetate, isopropyl alcohol, ethanol, dipropylene glycol, etc.
Meanwhile, the oxide film 6 has a component ratio of a mica particle : an inorganic
polymer = 3-20% : 80-97%. The mica particle not greater than 3% results in an insufficient
coating, and the mica particle not less than 20% results in a remarkably reduced light
intensity. Accordingly, the mica particle coating ratio is preferably between 3 and 20%. The heatproof oxide-coated incandescent lamp with the aforementioned structure
comprises the metal-colored oxide film 6, which has a high heatproof property and is formed
to have a component ratio of a mica particle : an inorganic polymer = 3-20% : 80-97% on the
outer surface of the light-emitting bulb 5. Accordingly, it is possible to prevent the light
intensity of the incandescent lamp from decreasing by use of the mica particle having a
coating ratio between 3 and 20%.
In addition, it is possible to simply form the oxide film 6 since the oxide film 6 is applied
in a spray manner.
Since an oxide film 6, which is formed on an outer surface of a colored light-emitting
bulb 5 of a heatproof oxide-coated incandescent lamp 4 provided inside of a reflective plate 2
and a transparent front lens 3 of a vehicle lamp unit 1 , has the same metallic color as the
reflective plate 2, the color of the light-emitting bulb 5 is not visible and thus an additional
cover is not necessary besides the transparent front lens 3, whereby the vehicle lamp unit 1
can be manufactured at low cost and with a neat appearance.
Meanwhile, the heatproof oxide-coated incandescent lamp 4 is not limited to the
vehicle lamp unit 1 but may be employed in a typical lamp which should have a neat
appearance.
While the present invention has been particularly shown and described with reference
to exemplary embodiments thereof, it will be understood by those skilled in the art that
various changes in form and details may be made therein without departing from the spirit
and scope of the invention as defined by the appended claims. The exemplary
embodiments should be considered in descriptive sense only and not for purposes of
limitation.
Therefore, the scope of the invention is defined not by the detailed description of the
invention but by the appended claims, and all differences within the scope will be construed
as being included in the present invention.
Claims
1. A heatproof oxide-coated incandescent lamp comprising a light-emitting bulb 5
and an oxide film 6 formed on an outer surface of the light-emitting bulb 5, wherein the oxide
film 6 is composed of an oxide particle, which is made by coating an oxide having a low index
of refraction with an oxide having a high index of refraction, and an inorganic polymer made
of silica and titanium oxide.
2. The heatproof oxide-coated incandescent lamp of claim 1, wherein the oxide
particle is made of a mica particle coated with titanium oxide.
3. The heatproof oxide-coated incandescent lamp of claim 1 , wherein the
inorganic polymer is a solution made by hydrolysis of silicon alkoxide and titanium alkoxide.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0052301A KR100504970B1 (en) | 2003-07-29 | 2003-07-29 | an incandescent of heatproof oxide coating |
| KR10-2003-0052301 | 2003-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005010924A1 true WO2005010924A1 (en) | 2005-02-03 |
Family
ID=34101750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2004/001846 WO2005010924A1 (en) | 2003-07-29 | 2004-07-23 | An incandescent of heatproof oxide coating |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100504970B1 (en) |
| WO (1) | WO2005010924A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH103889A (en) * | 1996-04-19 | 1998-01-06 | Toshiba Lighting & Technol Corp | Bulb, colored bulb for vehicle, lighting system for vehicle, and vehicle |
| JPH1116542A (en) * | 1997-06-25 | 1999-01-22 | Giken Kagaku Kk | Tungsten halogen lamp |
| JP2002050218A (en) * | 2000-08-03 | 2002-02-15 | C I Kasei Co Ltd | Colored lamp apparatus |
| JP2002056821A (en) * | 2000-08-08 | 2002-02-22 | Harison Toshiba Lighting Corp | Small incandescent lamp and lighting system |
-
2003
- 2003-07-29 KR KR10-2003-0052301A patent/KR100504970B1/en not_active IP Right Cessation
-
2004
- 2004-07-23 WO PCT/KR2004/001846 patent/WO2005010924A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH103889A (en) * | 1996-04-19 | 1998-01-06 | Toshiba Lighting & Technol Corp | Bulb, colored bulb for vehicle, lighting system for vehicle, and vehicle |
| JPH1116542A (en) * | 1997-06-25 | 1999-01-22 | Giken Kagaku Kk | Tungsten halogen lamp |
| JP2002050218A (en) * | 2000-08-03 | 2002-02-15 | C I Kasei Co Ltd | Colored lamp apparatus |
| JP2002056821A (en) * | 2000-08-08 | 2002-02-22 | Harison Toshiba Lighting Corp | Small incandescent lamp and lighting system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050013748A (en) | 2005-02-05 |
| KR100504970B1 (en) | 2005-07-29 |
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