US 12,266,745 B2
Light source device and camera inspection device using same
Ji Hyun Yun, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 18/010,884
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed May 10, 2021, PCT No. PCT/KR2021/005806
§ 371(c)(1), (2) Date Dec. 16, 2022,
PCT Pub. No. WO2021/256705, PCT Pub. Date Dec. 23, 2021.
Claims priority of application No. 10-2020-0073513 (KR), filed on Jun. 17, 2020.
Prior Publication US 2023/0231088 A1, Jul. 20, 2023
Int. Cl. H01L 33/54 (2010.01); G11B 27/36 (2006.01); H01L 25/075 (2006.01); H01L 33/56 (2010.01); H04N 17/00 (2006.01)
CPC H01L 33/54 (2013.01) [G11B 27/36 (2013.01); H01L 25/0753 (2013.01); H01L 33/56 (2013.01); H04N 17/002 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A camera inspection device comprising:
a portable terminal cradle configured such that a portable terminal provided with a camera is held therein;
a light source device comprising:
an LED package configured such that a plurality of LED elements is mounted on an upper surface of a printed circuit board, wherein the upper surface has a black background, and
an LED package cover configured to cover exposed parts of the upper surface of the printed circuit board between the plurality of LED elements, and comprising a plurality of coupling holes configured such that the plurality of LED elements mounted on the LED package is respectively inserted thereinto,
wherein the light source device is installed to be spaced apart from an upper portion of the portable terminal cradle by a predetermined distance and configured to radiate light towards the camera; and
a controller configured to control turning-on of the light source device and an imaging operation of the camera mounted in the portable terminal so as to perform light bleeding inspection of the camera by analyzing a brightness difference between images of the LED elements and the background.