US 11,722,758 B2
Vehicular camera with thermal compensating means
Steven V. Byrne, Goodrich, MI (US); and Jonathan D. Conger, Berkley, MI (US)
Assigned to Magna Electronics Inc., Auburn Hills, MI (US)
Filed by Magna Electronics Inc., Auburn Hills, MI (US)
Filed on May 13, 2022, as Appl. No. 17/663,223.
Application 17/663,223 is a continuation of application No. 17/248,628, filed on Feb. 1, 2021, granted, now 11,343,414.
Application 17/248,628 is a continuation of application No. 16/680,658, filed on Nov. 12, 2019, granted, now 10,911,647, issued on Feb. 2, 2021.
Claims priority of provisional application 62/758,723, filed on Nov. 12, 2018.
Prior Publication US 2022/0272243 A1, Aug. 25, 2022
Int. Cl. B60R 11/04 (2006.01); H04N 23/52 (2023.01); G02B 7/02 (2021.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); B60R 1/12 (2006.01); B60R 11/02 (2006.01); B60R 1/00 (2022.01); B60R 11/00 (2006.01)
CPC H04N 23/52 (2023.01) [B60R 11/04 (2013.01); G02B 7/02 (2013.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); B60R 1/00 (2013.01); B60R 1/12 (2013.01); B60R 11/0235 (2013.01); B60R 2001/1215 (2013.01); B60R 2001/1253 (2013.01); B60R 2011/004 (2013.01); B60R 2300/105 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A vehicular camera, the vehicular camera comprising:
a camera housing comprising a first portion and a second portion joined to the first portion;
wherein the first portion of the camera housing accommodates a lens, and wherein the first portion of the camera housing comprises an attaching portion having a first coefficient of thermal expansion (CTE);
a circuit board comprising circuitry disposed at a circuit board substrate having a first side and a second side opposite the first side and separated from the first side by a thickness of the circuit board substrate, the circuit board substrate having a second CTE that is different from the first CTE;
wherein the circuitry comprises an imager disposed at the first side of the circuit board substrate, and wherein the imager comprises an imaging array having at least one million photosensors arranged in rows and columns;
wherein the circuit board substrate is attached at the attaching portion of the first portion of the camera housing;
wherein, when the vehicular camera is operated at an operating temperature greater than 50 degrees C., the attaching portion expands a greater degree than the circuit board substrate; and
wherein, when the vehicular camera is operated at an operating temperature below −20 degrees C., the attaching portion contracts a greater degree than the circuit board substrate.