J. Brian Caldwell

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Petersburg, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Anamorphic optical system wity relative small squeeze ratio but wit...
- Patent number 10,126,533
- Issue date Nov 13, 2018
- J. Brian Caldwell
- G02 - OPTICS
Information Patent Grant
Optical attachment for reducing the focal length of an objective lens
- Patent number 8,903,232
- Issue date Dec 2, 2014
- Caldwell Photographic, Inc.
- J. Brian Caldwell
- G02 - OPTICS
Information Patent Grant
Optical attachment for reducing the focal length of an objective lens
- Patent number 8,879,901
- Issue date Nov 4, 2014
- Caldwell Photographic, Inc.
- J. Brian Caldwell
- G02 - OPTICS
Information Patent Grant
Tilt shift lens adapter
- Patent number 8,678,676
- Issue date Mar 25, 2014
- Erwin Scholz
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Large aperture imaging optical systems
- Patent number 8,169,717
- Issue date May 1, 2012
- Caldwell Photographic, Inc.
- J. Brian Caldwell
- G02 - OPTICS
Information Patent Grant
Afocal Galilean attachment lens with high pupil magnification
- Patent number 7,808,718
- Issue date Oct 5, 2010
- FM-Assets Pty Ltd
- James A. Frazier
- G02 - OPTICS
Information Patent Grant
Large aperture imaging optical system
- Patent number 7,733,581
- Issue date Jun 8, 2010
- J. Brian Caldwell
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Corrective optical systems and methods
- Publication number 20140085532
- Publication date Mar 27, 2014
- Caldwell Photographic, Inc.
- J. Brian Caldwell
- G02 - OPTICS
Information Patent Application
Optical attachment for reducing the focal length of an objective lens
- Publication number 20130064532
- Publication date Mar 14, 2013
- J. Brian Caldwell
- G02 - OPTICS
Information Patent Application
Tilt shift lens adapter
- Publication number 20120070141
- Publication date Mar 22, 2012
- Erwin Scholz
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Large aperture imaging optical systems
- Publication number 20100246031
- Publication date Sep 30, 2010
- J. Brian Caldwell
- G02 - OPTICS
Information Patent Application
Afocal galilean attachement lens with high pupil magnification
- Publication number 20090237810
- Publication date Sep 24, 2009
- GLOBAL BIONICS OPTICS LTD PTY
- James A. Frazier
- G02 - OPTICS
Information Patent Application
Large aperture imaging optical system
- Publication number 20090052064
- Publication date Feb 26, 2009
- J. Brian Caldwell
- G02 - OPTICS