Joel R Blum

Title: The Innovations of Joel R. Blum

Introduction

Joel R. Blum is an accomplished inventor based in Northglenn, Colorado. He holds a total of 2 patents that showcase his expertise in optical technologies. His work has significantly contributed to advancements in the field of liquid crystal tunable filters and polarimetry.

Latest Patents

One of Blum's latest patents is for an "Advanced Liquid Crystal Tunable Filter and Method." This invention describes a birefringent optical filter that demonstrates improved performance for both fixed and tunable filter configurations. An exemplary embodiment involves an initial filter configuration with an output polarizer that exhibits both an undesired transmission feature and a desired transmission feature. An additional polarizer follows the output polarizer, and an adjustable retarder is placed directly between them to produce an overall spectral filter response that eliminates the undesired transmission feature while allowing the desired transmission feature to pass. Another embodiment utilizes at least one reflective polarizer to manage light characterized by selected polarizations, directing rejected light out of the optical path.

Another significant patent by Blum is the "Conical Refraction Polarimeter." This device is designed to receive input electromagnetic radiation characterized by a polarization state and determine that polarization state. The polarimeter includes a refractive arrangement that refracts the input electromagnetic radiation to provide a spatial pattern corresponding to the polarization state. An image analysis arrangement receives this spatial pattern, produces an electronic image, and determines the polarization state based on the electronic image.

Career Highlights

Throughout his career, Joel R. Blum has worked with notable companies, including Meadowlark Optics, Inc. His contributions to the field of optics have been recognized and valued in various professional settings.

Collaborations

Blum has collaborated with esteemed colleagues such as Paul A. Searcy and Thomas G. Baur, further enhancing his work in optical technologies.

Conclusion

Joel R. Blum's innovative contributions to optical technologies through his patents reflect his expertise and dedication to advancing the field. His work continues to influence the development of advanced optical systems.