Michael Thomas Callaghan

US Patent:

20170102138, Apr 13, 2017

Filed:

Oct 7, 2016

Appl. No.:

15/289060

Inventors:

- River Falls WI, US
Michael D. Callaghan - Minneapolis MN, US
Matthew R. Hauser - New Richmond WI, US

International Classification:

F21V 29/56
F21V 3/02
F21V 7/00
F21V 23/06
F21V 29/504
F21V 15/015

Abstract:

A light emitting diode (LED) module includes a first end cap, a second end cap and a reflector portion. The reflector portion extends longitudinally between the first end cap and the second end cap. The reflector portion includes a coolant passageway defined longitudinally through the reflector portion and is fluidically coupled to the first end cap and the second end cap. An LED package is disposed adjacent to the reflector portion. An orifice bushing can be disposed within a coolant passage defined in the first end cap to restrict coolant flow through the reflector portion to preclude starvation of coolant flow elsewhere in the LED module.

US Patent:

20160053984, Feb 25, 2016

Filed:

Aug 20, 2015

Appl. No.:

14/830972

Inventors:

MICHAEL D. CALLAGHAN - Minneapolis MN, US
Robert L. Sargent - Chelmsford MA, US

International Classification:

F21V 29/74
B05D 3/06
F21K 99/00
H01L 25/075
F21V 23/06

Abstract:

An apparatus for direct LED irradiation, such as using UV, has a LED package with a plurality of individual LED units, the LED package attached to a heat sink. The heat sink transmits heat from the LED units to a coolant, which is circulated away from the LEDs during use. Radiation emitted from the LED package passes through a gap defined by a housing structure enclosing the LED package and heat sink.

US Patent:

20150076367, Mar 19, 2015

Filed:

Sep 5, 2014

Appl. No.:

14/478166

Inventors:

MICHAEL D. CALLAGHAN - Minneapolis MN, US
Robert L. Sargent - Chelmsford MA, US

International Classification:

H01L 25/075
H01L 25/00
H01L 33/60
B01J 19/12

US Classification:

2504921, 29832, 2504941

Abstract:

An assembly and method for irradiating a surface utilizing a plurality of LEDs in a pattern such that a linear fill factor characterizing such pattern is at least 80% along a focusing direction and/or at least 20% along a direction transverse to said focusing direction, the radiation emitted from the LEDs and reflected onto the surface from a trough reflector. Non-linear disposal of LEDs on an LED assembly is disclosed.

US Patent:

20150072069, Mar 12, 2015

Filed:

Aug 29, 2014

Appl. No.:

14/473175

Inventors:

MICHAEL D. CALLAGHAN - Minneapolis MN, US

International Classification:

F21V 14/04
F21V 7/06

US Classification:

427 8, 362276

Abstract:

A method of optimizing a reflector and light source by cyclically altering a configuration of the reflector or a distance between the reflector and the light source until light intensity is maximized or until scattered light is minimized. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 C.F.R. 1.72(b).