US 9,810,400 B2
Adjustable reflector device for light fixtures
Jia Luo, Shanghai (CN)
Assigned to Sinowell (Shanghai) Co., Ltd., Shanghai (CN)
Filed by SINOWELL (SHANGHAI) CO., LTD., Shanghai (CN)
Filed on Sep. 2, 2016, as Appl. No. 15/255,955.
Application 15/255,955 is a continuation of application No. PCT/CN2016/096444, filed on Aug. 23, 2016.
Claims priority of application No. 2015 2 0693145 U (CN), filed on Sep. 9, 2015.
Prior Publication US 2017/0067617 A1, Mar. 9, 2017
Int. Cl. F21S 4/00 (2016.01); F21V 7/16 (2006.01); F21S 8/04 (2006.01); F21V 7/00 (2006.01); A01G 9/26 (2006.01); F21V 17/02 (2006.01); F21Y 103/00 (2016.01)
CPC F21V 7/16 (2013.01) [A01G 9/26 (2013.01); F21S 8/04 (2013.01); F21V 7/005 (2013.01); F21V 17/02 (2013.01); F21Y 2103/00 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A lamp reflector with a degree of concavity, comprising:
a resilient reflective sheet having at least one reflective surface, wherein the resilient reflective sheet is configured to form one or more reflective sheet wings, and the resilient reflective sheet has one or more folds serving as one or more pivot axes;
at least one fixed end plate placed on at least one end of the lamp reflector, wherein each of the at least one fixed end plate comprises inward facing surfaces and at least two spring-loaded ball bearing units installed on the inward facing surfaces;
an adjustable fastening mechanism configured to form at least two selected positions, wherein the adjustable fastening mechanism includes at least two ball bearing catches formed on an outward facing surface of the each of the movable end plate, wherein each of the at least two spring-loaded ball bearing units engages with one of the at least two ball bearing catches to obtain one of the at least two selected positions, wherein the degree of concavity of the resilient reflective sheet is adjustable, thereby enabling a lighting fixture to emit a light beam of a selectable geometry by adjusting between the at least two selected positions; and
at least one movable end plate, wherein each of the at least one movable end plate is attached to one of the at least one fixed end plate by an adjustable retaining means in a loose manner, wherein the adjustable retaining means comprises a hinge pin and a hinge pin nut, thereby allowing the each of the at least one movable end plate to radially rotate with respect to the adjustable retaining means, wherein each of the at least one movable end plate is also attached to a portion of a corresponding wing edge of the reflective sheet wing, and positioned perpendicular to the reflective sheet wing, which allows the reflective sheet wing to be manually adjusted radially around the pivot axes to form different angles with respect to the central section.