Zhejiang Super Lighting Electric Appliance Co., Ltd

Zhejiang Super Lighting Electric Appliance Co., Lt

Jun-Feng Xu

Tao Jiang

Yi-Ching Chen

Yukihiro Saito

Hayato Unagiike

Wei-Hong Xu

Ai-Ming Xiong

Al-Ming Xiong

An LED light bulb comprising a lamp housing, a bulb base, connected to the lamp housing, a stem connected to the bulb base and located in the lamp housing; an LED filament, disposed in the lamp housing, where points of the LED filament in an xyz coordinates are defined as x, y, and z, an x-y plane of the xyz coordinates is perpendicular to the height direction of the LED light bulb, an z-axis of xyz coordinates is parallel with the stem, and the projection of the LED filament on the x-y plane, y-z plane and x-z plane respectively has a length L1, L2 and L3, and the length L1, the length L2, and the length L3 are substantially in a ratio of 1:(0.5 to 1):(0.6 to 0.9).

LED filament and LED light bulb

An high-efficiency light bulb, comprising: a lamp housing with inner surface and outer surface opposite to the inner surface of the lamp housing, the lamp housing includes a layer of luminescent material, which is formed on the inner surface or the outer surface of the lamp housing or integrated in the material of the lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing; and a single filament, disposed in the light housing, further comprising a plurality of supporting arms, connected with and supporting the LED filament, wherein the stem comprises a stand extending to the center of the lamp housing, the stand supports the supporting arms.

High-efficiency LED light bulb with LED filament therein

An LED filament light bulb, consisting of: a bulb shell doped with a golden yellow material or its surface coated with a yellow film; a bulb base connected to the bulb shell; a stem connected to the bulb base and located in the bulb shell, the stem comprises a stand extending to the center of the bulb shell; and a single filament, disposed in the light housing, further comprising a plurality of supporting arms, each of the supporting arms comprises a first end and a second end opposite to the first end of the supporting arms, the first end of each of the supporting arms is connected with the stand while the second end of each of the supporting arms is connected with the LED filament.

LED light bulb having filament with segmented light conversion layer

A light bulb, consisting of: a lamp housing doped with a golden yellow material or its surface coated with a yellow film; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing, the stem comprises a stand extending to the center of the lamp housing; and a single LED filament, disposed in the lamp housing, the LED filament comprising: a plurality of LED sections, each of the LED sections includes at least two LED chips that are electrically connected to each other by a wire; a plurality of conductive sections, each of the conductive sections is located between the two adjacent LED sections and configured to electrically connect the two adjacent LED sections; a plurality of supporting arms, each of the supporting arms comprises a first end and a second end opposite to the first end of the supporting arms, the first end of each of the supporting arms is connected with the stand while the second end of each of the supporting arms is connected with the LED filament; the base layer of the light conversion layer is formed from organosilicon-modified polyimide resin composition comprising an organosilicon-modified polyimide and a thermal curing agent.

LED light bulb having muti-section bending filament

An LED light bulb, comprising:a lamp housing, doped with a golden yellow material or coated with a yellow film on its surface,a bulb base, connected with the lamp housing, a stem with a stand extending to the center of the lamp housing, disposed in the lamp housing, a LED filament disposed in the lamp housing, at least a half of the LED filament is around a center axle of the LED light bulb, where the center axle of the LED light bulb is coaxial with the axle of the stand, two conductive supports, connected with the stem and the LED filament.

LED filament light bulb having different surface roughness filament base layer

An light bulb, comprising: a lamp housing with inner surface and outer surface opposite to the inner surface of the lamp housing, the lamp housing includes a layer of luminescent material, which is formed on the inner surface or the outer surface of the lamp housing or integrated in the material of the lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing; and a single filament, disposed in the light housing.

LED filament light bulb having organosilicon-modified polyimide resin composition filament base layer

An LED light bulb, comprising: a bulb shell with inner surface and outer surface opposite to the inner surface of the bulb shell, the bulb shell includes a layer of luminescent material which is formed on the inner surface or the outer surface of the bulb shell or integrated in the material of the bulb shell; a bulb base connected to the bulb shell; a stem connected to the bulb base and located in the bulb shell, the stem comprises a stand extending to the center of the bulb shell; and a single LED filament, disposed in the bulb shell, the LED filament comprising: a plurality of LED chip units, each of the LED chip units comprises at least two LED chips; a plurality of conductors respectivity located on opposite sides of the LED chip units; wherein a Cartesian coordinate system having an x-axis, a y-axis is oriented for the LED filament where the x-axis is parallel to the length direction of the LED filament, the conductors are parallel to the x direction and at least one of the plurality of conductors is electrically connected with the LED chip units through a first wire perpendicular to the x direction.

LED light bulb with flexible LED filament having perpendicular connecting wires

An light bulb comprise a lamp housing filled with gas which doped with a golden yellow material or coated with a yellow film on its surface; a bulb base, connected with the lamp housing; a stem with a stand extending to the center of the lamp housing, disposed in the lamp housing; a LED filament disposed in the lamp housing, at least a half of the LED filament is around a center axle of the LED light bulb, where the center axle of the LED light bulb is coaxial with the axle of the stand, two conductive supports, respectively connected with the stem and the LED filament; a driving circuit, electrically connected with both the conductive supports and the bulb base.

High light-emitting efficiency LED light bulb having filament with controlled refractive index differences of multiple interfaces

An LED light bulb, comprising: a lamp housing, doped with a golden yellow material or coated with a yellow film on its surface, a bulb base, connected with the lamp housing, a stem with a stand extending to the center of the lamp housing, disposed in the lamp housing, LED filament disposed in the lamp housing, at least a half of the LED filament is around a center axle of the LED light bulb, where the center axle of the LED light bulb is coaxial with the axle of the stand. two conductive supports, connected with the stem and the LED filament, a driving circuit, electrically connected with both the conductive supports and the bulb base.

LED light bulb having uniform light emmision

An light bulb, comprising: a bulb shell, a bulb base connected to the bulb shell; a stem connected to the bulb base and located in the bulb shell; and a flexible LED filament, disposed in the bulb shell, further comprising a plurality of supporting arms respectively comprising two ends, an end of each of the supporting arm is connected to the stem and another end of each of the supporting arm is connected to the flexible LED filament, wherein the stem comprises a stand extending to the center of the bulb shell, the stand supports the supporting arms.

LED light bulb with a flexible LED filament

An LED light bulb, consisting of: a lamp housing with inner surface and outer surface opposite to the inner surface of the lamp housing, the lamp housing includes a layer of luminescent material which is formed on the inner surface or the outer surface of the lamp housing or integrated in the material of the lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing, the stem comprises a stand extending to the center of the lamp housing; and a single filament, disposed in the light housing, a plurality of supporting arms, each of the supporting arms comprises a first end and a second end opposite to the first end of the supporting arms, the first end of each of the supporting arms is connected with the stand while the second end of each of the supporting arms is connected with LED filament.

LED light bulb with bendable LED filament

An LED filament light bulb, comprising: a lamp housing with inner surface and outer surface opposite to the inner surface of the lamp housing, the lamp housing includes a layer of luminescent material, which is formed on the inner surface or the outer surface of the lamp housing or integrated in the material of the lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing; and a single filament, disposed in the light housing, the LED filament comprising: a plurality of LED filament units, wherein each of the plurality of LED filament units includes a single LED chip with an upper surface and a lower surface opposite to the upper surface. The LED filament light bulb further comprising a plurality of supporting arms, connected with and supporting the LED filament, wherein the stem comprises a stand extending to the center of the lamp housing, the stand supports the supporting arms.

LED filament light bulb

An LED filament comprises at least one LED section, a conductive section, two conductive electrodes and a light conversion layer. The conductive section is used to electrically connect two adjacent LED sections. The two conductive electrodes are electrically connected to each of the LED sections. Each of the LED sections includes at least two LED chips electrically connected to each other. The light conversion layer covers the LED sections, the conductive sections and the conductive electrodes, and a part of the two electrodes is exposed respectively. Since the LED filament includes the LED section and the conductive section, when the LED filament is bent, the stress is easily concentrated on the conductive section. Therefore, the breakage probability of the conductive wires connected within the LED section is reduced during bending. The quality of the LED filament and its application is improved.

An LED light bulb having a bulb base and a bulb shell connected with the bulb base, the bulb shell having a layer of luminescent material formed in the material of the bulb shell. A stem with a stand extending to the center of the bulb shell is disposed in the bulb shell. A flexible LED filament is disposed in the bulb shell, at least half of the LED filament is disposed around a center axle of the LED light bulb, where the center axle is coaxial with the axle of the stand and two conductive supports, each of which are connected with the stem and the LED filament. A driving circuit is electrically connected with the two conductive supports and the bulb base. Additionally, a plurality of supporting arms has two ends, with one end connected to the stem and the other end connected to the LED filament.

Growing community of inventors

Zhejiang, China

Jun-Feng Xu