US 11,988,343 B2
Rugged all purpose lighting cube
Wei Cao, Shanghai (CN); Simon Shi, Shanghai (CN); Yoy Dai, Shanghai (CN); and Scott Gant, Poway, CA (US)
Assigned to LOGITECH EUROPE S.A., Lausanne (CH)
Filed by LOGITECH EUROPE S.A., Lausanne (CH)
Filed on Oct. 13, 2017, as Appl. No. 15/784,082.
Claims priority of provisional application 62/407,545, filed on Oct. 13, 2016.
Claims priority of application No. 201720112835.5 (CN), filed on Feb. 6, 2017.
Prior Publication US 2020/0011491 A1, Jan. 9, 2020
Prior Publication US 2023/0367110 A9, Nov. 16, 2023
Int. Cl. F21L 4/02 (2006.01); F21L 4/08 (2006.01); F21V 5/00 (2018.01); F21V 15/01 (2006.01); F21V 21/088 (2006.01); F21V 23/00 (2015.01); F21V 23/06 (2006.01); F21V 29/74 (2015.01); F21V 31/00 (2006.01); F21W 131/40 (2006.01); F21Y 105/16 (2016.01); F21Y 115/10 (2016.01); G02B 1/11 (2015.01); G02B 19/00 (2006.01); G03B 15/05 (2006.01); H02J 7/00 (2006.01)
CPC G02B 19/0066 (2013.01) [F21L 4/02 (2013.01); F21L 4/08 (2013.01); F21V 5/008 (2013.01); F21V 15/01 (2013.01); F21V 23/007 (2013.01); F21V 23/06 (2013.01); F21V 29/74 (2015.01); F21V 31/005 (2013.01); G02B 19/0009 (2013.01); G02B 19/0061 (2013.01); G03B 15/05 (2013.01); H02J 7/00 (2013.01); H02J 7/0042 (2013.01); H02J 7/00714 (2020.01); F21V 21/0885 (2013.01); F21W 2131/40 (2013.01); F21Y 2105/16 (2016.08); F21Y 2115/10 (2016.08); G02B 1/11 (2013.01); G03B 2215/0542 (2013.01); G03B 2215/0567 (2013.01); G03B 2215/0592 (2013.01)] 10 Claims
OG exemplary drawing
 
3. A lighting apparatus for a photographic camera device, including a light emitting member; characterized in that, also included are a diffuser and a condenser lens; the light emitting member, the diffuser, and the condenser lens are provided in this order so that the light emitted from the light emitting member is irradiated to the outside through the diffuser and the condenser lens in this order;
wherein an area between a first surface of the diffuser and the light emitting member defines a first sealed cavity, wherein the diffuser has a second surface opposite to the first surface;
wherein the diffuser is disposed within a groove of an annular sidewall surrounding the first sealed cavity; and
wherein an area between the second surface of the diffuser and a planar surface of the condenser lens defines a second sealed cavity.