Location History:
- Chertsey, GB (1984)
- Lightwater, GB (1990 - 1993)
Company Filing History:
Years Active: 1984-1993
Title: **David R Bertenshaw: Innovator in Lighting Technology**
Introduction
David R Bertenshaw, an accomplished inventor based in Lightwater, GB, has made significant contributions to the field of lighting technology with a total of four patents to his name. His innovations have paved the way for advanced lighting systems that enhance both functionality and aesthetics.
Latest Patents
One of Bertenshaw's most recent innovations is a lamp system featuring a toroidal light emitting member. This lamp assembly is designed for luminaires and includes a uniquely shaped reflector that effectively directs light emitted from the toroidal member. The light emitting member, which is typically a filament of an incandescent lamp, works in conjunction with a specially constructed reflector to produce optimal light output. The reflector's cross-section comprises symmetrical arcs that can be elliptical or circular, allowing for tailored light distribution.
Additionally, Bertenshaw has developed an electric lighting and power controller that employs a controllable switch, such as a thyristor. This technology compensates for fluctuations in the mains supply waveform by analyzing the waveform and establishing a table of thyristor firing angles related to the output RMS voltage. This innovative approach ensures consistent and desired output, marking a notable advancement in electrical lighting systems.
Career Highlights
Throughout his career, David R Bertenshaw has worked with notable companies in the lighting industry, including Strand Lighting Limited and The Rank Organisation Plc. His expertise and innovative outlook have contributed to the evolution of lighting design and control systems, reinforcing his position as a leading figure in this sector.
Collaborations
Bertenshaw has collaborated with several esteemed professionals in his field, including John Wright and Edwin P Lockwood. These partnerships have facilitated the exchange of ideas and furthered the development of novel lighting solutions that continue to benefit both consumers and industry stakeholders.
Conclusion
David R Bertenshaw exemplifies the spirit of innovation in the realm of lighting technology. His contributions through patented inventions reflect his commitment to enhancing the efficiency and effectiveness of lighting systems. As he continues to build on his legacy, Bertenshaw remains an inspirational figure for aspiring inventors and established professionals alike in the field of innovations.