Assigned to ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD., Zhejiang (CN)
Filed by ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD, Zhejiang (CN)
Filed on Nov. 15, 2021, as Appl. No. 17/525,994.
Application 17/525,994 is a continuation of application No. 16/364,195, filed on Mar. 26, 2019, granted, now 11,259,372.
Application 16/364,195 is a continuation of application No. 16/234,124, filed on Dec. 27, 2018, granted, now 10,845,008, issued on Nov. 24, 2020.
Application 16/234,124 is a continuation in part of application No. 15/858,036, filed on Dec. 29, 2017, granted, now 10,544,905, issued on Jan. 28, 2020.
Application 15/858,036 is a continuation in part of application No. 29/627,379, filed on Nov. 27, 2017, granted, now D879330, issued on Mar. 24, 2020.
Application 29/627,379 is a continuation in part of application No. 29/619,287, filed on Sep. 28, 2017, granted, now D862740, issued on Oct. 8, 2019.
Application 29/619,287 is a continuation in part of application No. 15/723,297, filed on Oct. 3, 2017, granted, now 10,655,792, issued on May 19, 2020.
Application 15/723,297 is a continuation in part of application No. 15/168,541, filed on May 31, 2016, granted, now 9,995,474, issued on Jun. 12, 2018.
Application 15/168,541 is a continuation in part of application No. 15/308,995, granted, now 10,781,979, issued on Sep. 22, 2020, previously published as PCT/CN2015/090815, filed on Sep. 25, 2015.
Application 15/723,297 is a continuation in part of application No. 15/499,143, filed on Apr. 27, 2017, granted, now 10,240,724, issued on Mar. 26, 2019.
Application 15/499,143 is a continuation in part of application No. 15/384,311, filed on Dec. 19, 2016, granted, now 10,487,987, issued on Nov. 26, 2019.
Application 15/384,311 is a continuation in part of application No. 15/366,535, filed on Dec. 1, 2016, granted, now 10,473,271, issued on Nov. 12, 2019.
Application 15/366,535 is a continuation in part of application No. 15/237,983, filed on Aug. 16, 2016, granted, now 10,228,093, issued on Mar. 12, 2019.
Claims priority of application No. 201410510593.6 (CN), filed on Sep. 28, 2014; application No. 201510053077.X (CN), filed on Feb. 2, 2015; application No. 201510316656.9 (CN), filed on Jun. 10, 2015; application No. 201510347410.8 (CN), filed on Jun. 19, 2015; application No. 201510489363.0 (CN), filed on Aug. 7, 2015; application No. 201510502630.3 (CN), filed on Aug. 17, 2015; application No. 201510555889.4 (CN), filed on Sep. 2, 2015; application No. 201510966906.3 (CN), filed on Dec. 19, 2015; application No. 201610041667.5 (CN), filed on Jan. 22, 2016; application No. 201610272153.0 (CN), filed on Apr. 27, 2016; application No. 201610281600.9 (CN), filed on Apr. 29, 2016; application No. 201610394610.3 (CN), filed on Jun. 3, 2016; application No. 201610544049.2 (CN), filed on Jul. 7, 2016; application No. 201610586388.7 (CN), filed on Jul. 22, 2016; application No. 201610936171.4 (CN), filed on Nov. 1, 2016; application No. 201611108722.4 (CN), filed on Dec. 6, 2016; application No. 201710024877.8 (CN), filed on Jan. 13, 2017; application No. 201710079423.0 (CN), filed on Feb. 14, 2017; application No. 201710138009.2 (CN), filed on Mar. 9, 2017; application No. 201710180574.5 (CN), filed on Mar. 23, 2017; application No. 201710234618.8 (CN), filed on Apr. 11, 2017; application No. 201710316641.1 (CN), filed on May 8, 2017; application No. 201710839083.7 (CN), filed on Sep. 18, 2017; application No. 201730450712.8 (CN), filed on Sep. 21, 2017; application No. 201730453237.X (CN), filed on Sep. 22, 2017; application No. 201730453239.9 (CN), filed on Sep. 22, 2017; application No. 201710883625.0 (CN), filed on Sep. 26, 2017; application No. 201730489929.X (CN), filed on Oct. 16, 2017; application No. 201730517887.6 (CN), filed on Oct. 27, 2017; application No. 201730520672.X (CN), filed on Oct. 30, 2017; application No. 201730537542.7 (CN), filed on Nov. 3, 2017; application No. 201730537544.6 (CN), filed on Nov. 3, 2017; application No. 201711434993.3 (CN), filed on Dec. 26, 2017; application No. 201711477767.3 (CN), filed on Dec. 29, 2017; application No. 201810031786.1 (CN), filed on Jan. 12, 2018; application No. 201810065369.9 (CN), filed on Jan. 23, 2018; application No. 201810343825.1 (CN), filed on Apr. 17, 2018; application No. 201810344630.9 (CN), filed on Apr. 17, 2018; application No. 201810498980.0 (CN), filed on May 23, 2018; application No. 201810501350.4 (CN), filed on May 23, 2018; application No. 201810573314.9 (CN), filed on Jun. 6, 2018; application No. 201810836433.9 (CN), filed on Jul. 26, 2018; application No. 201810943054.X (CN), filed on Aug. 17, 2018; application No. 201811005145.5 (CN), filed on Aug. 30, 2018; application No. 201811005536.7 (CN), filed on Aug. 30, 2018; application No. 201811079889.1 (CN), filed on Sep. 17, 2018; application No. 201811277980.4 (CN), filed on Oct. 30, 2018; application No. 201811285657.1 (CN), filed on Oct. 31, 2018; application No. 201811378173.1 (CN), filed on Nov. 19, 2018; application No. 201811378189.2 (CN), filed on Nov. 19, 2018; and application No. 201811549205.X (CN), filed on Dec. 18, 2018.
Prior Publication US 2022/0086974 A1, Mar. 17, 2022
a stem connected to the bulb base and located in the lamp housing; and
an LED filament, disposed in the lamp housing,
wherein 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, wherein 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, wherein 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);
wherein the LED filament comprises:
a plurality of LED sections, each of the plurality of LED sections includes at least two LED chips that are electrically connected to each other;
at least one conductive section, connected with two adjacent of the plurality of the LED sections;
at least two conductive electrodes, respectively disposed on two ends of the LED filament and electrically connected to the LED sections; and
a light conversion layer;
wherein the LED filament has a plurality of bending points having the smallest curvature radii in the LED filament among other portions of the LED filament,
and the plurality of bending points comprise a plurality of first bending points and at least one second bending point,
wherein the plurality of first bending points are formed by the plurality of conductive sections, and at least one second bending point is formed by the at least one conductive section,
wherein the plurality of first bending points are coated with the light conversion layer;
wherein the length L1 is a total length of the projection of the LED filament on the XY plane from one of the at least two conductive electrodes to the other one of the at least two conductive electrodes, the length L2 is a total length of the projection of the LED filament on the YZ plane from one of the at least two conductive electrodes to the other one of the at least two conductive electrodes, and the length L3 is a total length of the projection of the LED filament on the XZ plane from one of the at least one conductive section to one of the at least two conductive electrodes.
