Mark Chalmers

Title: Mark Chalmers and Ophthalmic Lens Innovation.

Introduction

Mark Chalmers is an inventor based in Bournemouth, Great Britain. His patent work focuses on ophthalmic lenses and technologies for manufacturing them. He is associated with CooperVision International Limited and has 2 patents.

Latest Patents

Chalmers’s listed patents address electrically switchable optics and lens machining.

“Electrically Switchable Liquid Crystal Cell, Contact Lens and Method Relating Thereto” describes a liquid crystal cell for a lens. The liquid crystal material switches between two states: one in which its effective refractive index differs from the diffractive optical element’s base material, and another in which the indices match. In the matched state, the diffractive element contributes no focal power. The patent also describes rounded peaks and troughs in the diffractive element, along with methods for manufacturing the cell.

“Mandrel for Use in the Machining of Ophthalmic Lenses” concerns a mandrel that holds a lens blank during machining. Its front surface includes planar and curved regions, with a drainage channel between them to direct wax applied to the curved region. The disclosure also covers related mounting and machining methods, a kit of parts, and lenses produced using the apparatus.

Career Highlights

The available patent information highlights Chalmers’s contributions to both lens design and lens-production equipment. His work spans switchable optical functionality and practical features intended to support the machining of ophthalmic lens blanks.

Collaborations

Chalmers is associated with CooperVision International Limited. Robert Oag and Robert Turner are identified as coworkers.

Conclusion

Mark Chalmers’s patents reflect a focus on ophthalmic innovation, combining electrically switchable lens technology with equipment and methods for manufacturing lenses.