Patent ID: 7159982

Claim:
A method for providing design data in a system comprising a terminal computer device, a processing machine connected to the terminal computer device and operated by a lens processor, and a host computer device connected to the terminal computer device via a communication line and managed by a design data creator, the design data including information of an inner-surface progressive addition lens having a distance portion and a near portion with different respective powers, and a progressive portion disposed between the distance and near portions where power changes progressively, the method comprising: a contract agreement information acquisition process in which the host computer device acquires information indicating that the lens processor has agreed to pay consideration to the design data creator in order to receive design data of an inner-surface progressive addition lens used for controlling the processing machine; a prescription data acquisition process performed after the contract agreement information acquisition process in which the host computer device acquires prescription data of the inner-surface progressive addition lens from the lens processor via the communication line; a design data generation process in the host computer device for generating design data corresponding to the acquired prescription data; and a design data distribution process in which the host computer device distributes the generated design data to the terminal computer device.