US 11,685,306 B2
Light emitting device
Wei-Te Cheng, Taipei (TW); Kai-Chieh Liang, Taipei (TW); Kuo-Ming Chiu, Taipei (TW); Fang-Jung Sun, Taipei (TW); Chun-Chieh Chang, Taipei (TW); and Yi-Fei Lee, Taipei (TW)
Assigned to LITE-ON TECHNOLOGY CORPORATION, Taipei (TW)
Filed by LITE-ON TECHNOLOGY CORPORATION, Taipei (TW)
Filed on Jan. 25, 2022, as Appl. No. 17/584,164.
Claims priority of provisional application 63/144,962, filed on Feb. 2, 2021.
Claims priority of application No. 202111401493.6 (CN), filed on Nov. 22, 2021.
Prior Publication US 2022/0243897 A1, Aug. 4, 2022
Int. Cl. B60Q 1/30 (2006.01); F21S 43/14 (2018.01); B60Q 1/26 (2006.01); F21S 43/20 (2018.01); B60Q 1/44 (2006.01); H01L 25/13 (2006.01); F21V 9/30 (2018.01); H01L 33/10 (2010.01); H01L 33/38 (2010.01); H01L 33/56 (2010.01); H01L 33/62 (2010.01); F21Y 115/10 (2016.01)
CPC B60Q 1/30 (2013.01) [B60Q 1/2607 (2013.01); B60Q 1/44 (2013.01); F21S 43/14 (2018.01); F21S 43/255 (2018.01); F21V 9/30 (2018.02); H01L 25/13 (2013.01); H01L 33/10 (2013.01); H01L 33/382 (2013.01); H01L 33/56 (2013.01); H01L 33/62 (2013.01); F21Y 2115/10 (2016.08)] 20 Claims
OG exemplary drawing
 
1. A light emitting device, comprising:
a lighting unit configured to emit an invisible light;
a conversion material configured to convert a small part of the invisible light into a visible light for indicating that the lighting unit is in operation,
wherein, a wavelength range of the light emitted by the light emitting device covers both wavelength ranges of the visible light and the invisible light, and a spectral energy measured within the wavelength range of the visible light is less than 20% of a spectral energy measured within a wavelength range of 200 nm to 380 nm of remaining part of the invisible light.