J A Dobrowolski

Title: J A Dobrowolski: Innovator in Optical Technology

Introduction

J A Dobrowolski is a notable inventor based in Ottawa, Canada. He has made significant contributions to the field of optical technology, particularly through his innovative patent related to cut-off filters. His work exemplifies the intersection of science and practical application, showcasing the potential of optical devices in various industries.

Latest Patents

J A Dobrowolski holds a patent for a cut-off filter. This filter is designed based on the use of light at non-normal angles of incidence and employs coating materials with a large dispersion of optical constants. The filter consists of a pair of optical media that define an inlet port and an outlet port, featuring an inclined interface. This design allows a light beam to pass between the ports while striking the interface at a non-normal angle of incidence. An active core is sandwiched between the optical media at the interface, which has a refractive index that exhibits high dispersion near the predetermined cut-off wavelength. The angle of incidence is selected to ensure total internal reflection occurs at the predetermined wavelength, resulting in a sharp cut-off in the transmittance of the filter.

Career Highlights

J A Dobrowolski is affiliated with the National Research Council of Canada, where he has been able to apply his expertise in optical technology. His work has contributed to advancements in the field, particularly in the development of innovative optical devices.

Collaborations

One of his notable collaborators is Li Li, with whom he has worked on various projects related to optical technology.

Conclusion

J A Dobrowolski's contributions to the field of optical technology through his patent on cut-off filters highlight his innovative spirit and dedication to advancing scientific knowledge. His work continues to influence the development of optical devices, showcasing the importance of innovation in technology.