Benjamin Chen

US Patent:

20230040032, Feb 9, 2023

Filed:

Mar 14, 2022

Appl. No.:

17/694489

Inventors:

- Carson CA, US
Benjamin Pin-Chun CHEN - Lomita CA, US
William Wai-Loong Young - La Habra Heights CA, US
Amir Lotfi - Redondo Beach CA, US

Assignee:

DMF, Inc. - Carson CA

International Classification:

F21V 29/70
F21V 29/10
F21V 5/04
F21V 17/16
F21V 23/00

Abstract:

A lighting module includes a heat sink having a sidewall and a partition that define a first cavity and a second cavity. A driver enclosure is disposed in the first cavity to electrically insulate a driver from the heat sink. The driver enclosure substantially fills and covers the first cavity. A light source that emits light is disposed in the second cavity together with an optical element that redirects the light. A retaining ring/optic cover covers and encloses the second cavity. The lighting module is shaped and/or dimensioned to fit into a space having a width less than 2.4 inches, a height less than 2.25 inches, and/or a volume as small as 18 cubic inches. The heat sink may also include a receptacle to couple a trim to thermally and electrically couple the trim to the heat sink to dissipate heat and to ground the trim.

US Patent:

20210262650, Aug 26, 2021

Filed:

May 12, 2021

Appl. No.:

17/318193

Inventors:

Michael D. Danesh - Carson CA, US
Benjamin Pin-Chun CHEN - Lomita CA, US
William Wai-Loong Young - La Habra Heights CA, US
Amir Lotfi - Redondo Beach CA, US

Assignee:

DMF, Inc. - Carson CA

International Classification:

F21V 29/70
F21V 23/00
F21V 29/10
F21V 17/16
F21V 5/04

Abstract:

A lighting module includes a heat sink having a sidewall and a partition that define a first cavity and a second cavity. A driver enclosure is disposed in the first cavity to electrically insulate a driver from the heat sink. The driver enclosure substantially fills and covers the first cavity. A light source that emits light is disposed in the second cavity together with an optical element that redirects the light. A retaining ring/optic cover covers and encloses the second cavity. The lighting module is shaped and/or dimensioned to fit into a space having a width less than 2.4 inches, a height less than 2.25 inches, and/or a volume as small as 18 cubic inches. The heat sink may also include a receptacle to couple a trim to thermally and electrically couple the trim to the heat sink to dissipate heat and to ground the trim.

US Patent:

20210080084, Mar 18, 2021

Filed:

Nov 16, 2020

Appl. No.:

17/099650

Inventors:

Michael D. Danesh - Carson CA, US
Benjamin Pin-Chun CHEN - Lomita CA, US

International Classification:

F21V 17/00
F21V 23/00
F21V 17/16
F21V 29/77
F21V 21/04

Abstract:

A lighting module includes a housing formed of a thermally conducting material having a thermal conductivity greater than at least 0.5 WmK. The housing comprises a sidewall that forms a substantially cylindrical cavity, and a flange surrounding an opening of the substantially cylindrical cavity. The lighting module includes at least one integrated electrical connector, mechanically engaged with and substantially lodged within at least a portion of the housing, to receive AC voltage from an electrical system of a building. The lighting module further includes a light source including at least one LED disposed in the substantially cylindrical cavity, and an AC to DC converter, disposed in the substantially cylindrical cavity, to receive electrical energy from the at least one integrated electrical connector and supply regulated electrical energy to power the light source.

US Patent:

20200232624, Jul 23, 2020

Filed:

Mar 26, 2020

Appl. No.:

16/831322

Inventors:

Amir Lotfi - Redondo Beach CA, US
Benjamin Pin-Chun Chen - Lomita CA, US
David Kessler - New York NY, US

International Classification:

F21V 7/04
F21V 7/00
F21V 5/00
F21V 5/04
F21V 7/28
G02B 19/00
G02B 3/04
G02B 1/14

Abstract:

A hybrid lens collimates light emitted by a light source via refraction and reflection. A folded optic element of the lens comprises an outer reflective surface, a lens output surface, and a hollow core comprising a sidewall having a curved profile, a core output boundary, and a core input opening through which the light emitted by the light source enters the hollow core. A reflector of the lens receives the light emitted by the light source, reflects a first portion of the light into the hollow core of the folded optic element, and directly transmits a second portion of the light into the hollow core without reflection by the reflector. In one example, the lens output surface has a diameter of 65 millimeters, the lens has a thickness (between the light source and the lens output surface) of about 13.5 millimeters and provides substantially collimated light with a beam divergence angle of 12 degrees or less.