A control system for a switchable lens
AssigneeDynamic Vision Systems Limited
InventorsJohn Clifford Jones, Helen Frances Gleeson, Philip Bruce Morgan
Life of this patent
Estimating the term…
Abstract
Disclosed is a dynamically switchable contact lens, operable to switch between first and second focal states, each focal state having a different optical property, the lens comprising: a power source; a controller, operable to control the operation of the lens; a transceiver operable to communicate with a second lens and/or an external controller; wherein the controller is operable to pair the lens with the second lens by means of the external controller.
Claims12
A dynamically switchable contact lens, operable to switch between first and second focal states, each focal state having a different optical property, the lens comprising:
- a power source;
- a controller, operable to control the operation of the lens;
- a transceiver operable to communicate with a second lens and/or an external controller;
- wherein the controller is operable to pair the lens with the second lens by means of the external controller.
A method of associating first and second dynamically switchable contact lenses with an external controller, comprising the steps of:
- (a) scanning, using the external controller, an identifier associated with the first lens;
- (b) transmitting to the first lens an association message to associate the external controller with the first lens;
- (c) scanning, using the external controller, an identifier associated with the second lens;
- and
- (d) transmitting to the second lens an association message to associate the external controller with the second lens.
A method of changing focal state of first and second dynamically switchable contact lens, comprising the steps of:
- (a) determining that a change of focal state is required;
- (b) transmitting from an external controller a message to the first lens, including first lens identity information;
- (c) receiving at the external controller a response message from the first lens;
- (d) transmitting from an external controller a message to the second lens, including second lens identity information;
- (e) receiving at the external controller a response message from the second lens;
- (f) transmitting to the first lens a trigger signal to change focal state;
- and
- (g) transmitting to the second lens a trigger signal to change focal state.
A method of changing a focal state of first and second lenses, operating in a standalone mode, comprising the steps of:
- (a) the first lens determining that a change in focal state is required;
- (b) the first lens transmitting a message including second lens identity information to the second lens;
- (c) the second lens transmitting a message to the first lens in response;
- (d) the first lens triggering a change in its own focal state;
- (e) the first lens transmitting a trigger message to the second lens to change focal state;
- and
- (f) the second lens triggering a change in its own focal state.
Dependencies are inferred from the claim text.