US 12,422,643 B2
Heating device and camera module
Yong Tae Park, Seoul (KR); Beom Suk Yu, Seoul (KR); Min Woo Lee, Seoul (KR); and Sun Min Hwang, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/593,900
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Mar. 26, 2020, PCT No. PCT/KR2020/004134
§ 371(c)(1), (2) Date Sep. 27, 2021,
PCT Pub. No. WO2020/197289, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10-2019-0034139 (KR), filed on Mar. 26, 2019; and application No. 10-2019-0035142 (KR), filed on Mar. 27, 2019.
Prior Publication US 2022/0163751 A1, May 26, 2022
Int. Cl. G02B 7/02 (2021.01); H05B 3/84 (2006.01)
CPC G02B 7/028 (2013.01) [G02B 7/021 (2013.01); H05B 3/84 (2013.01); H05B 2203/016 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A heating device comprising:
a substrate;
a connection terminal electrically connected to the substrate; and
a heating member electrically connected to the connection terminal,
wherein the connection terminal comprises:
a first region comprising an inner side portion and an outer side portion;
a third region electrically connected to the substrate; and
a second region disposed between the first region and the third region,
wherein the heating member is disposed between the inner side portion and the outer side portion of the connection terminal,
wherein the inner side portion and the outer side portion are perpendicular to an optical axis direction,
wherein a height at which the inner side portion is positioned and a height at which the outer side portion is positioned in the optical axis direction are different from each other,
wherein the substrate comprises a control unit and a resistor disposed between the connection terminal and the control unit,
wherein the resistor comprises a first resistor and a second resistor,
wherein the first resistor is electrically connected to the first connection portion of the connection terminal, and the second resistor is electrically connected to the second connection portion of the connection terminal,
wherein the first connection portion comprises a first electrode portion having a first voltage and a second electrode portion having a second voltage lower than the first voltage,
wherein the second connection portion comprises a third electrode portion having a third voltage and a fourth electrode portion having a fourth voltage lower than the third voltage, and
wherein the first resistor is electrically connected to the second electrode portion of the first connection portion, and the second resistor is electrically connected to the fourth electrode portion of the second connection portion.