Leonardo has filed a patent for a multi-axis motor that allows for fine adjustment of an optical device. The motor includes two elongate magnet members that can adjust different axes of the device. The first magnet member adjusts the first axis, while the second magnet member adjusts the second axis. The patent also describes a method for using the motor, which involves adjusting the axes of two motors for both fine and coarse adjustments of the optical device. GlobalData’s report on Leonardo gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Leonardo, Light-weight composite fuselage was a key innovation area identified from patents. Leonardo's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.

A multi-axis motor for adjusting fine and coarse axes

Source: United States Patent and Trademark Office(USPTO). Credit: Leonardo SpA

A recently filed patent (Publication Number: US20230204971A1) describes a method for using a multi-axis motor for adjusting the position of an optical device. The method involves adjusting the first axis of a first motor by moving a first magnet member in a first coil. The first magnet member is an elongate magnet that is curved along its length and is coupled with a support structure. An optical device is also coupled with the support structure. Similarly, the second axis of the first motor is adjusted by moving a second magnet member in a second coil. The first and second magnet members protrude from the support structure at right angles, with their lengths orthogonal to each other. This allows for fine adjustment of the optical device.

The method also includes adjusting the first and second axes of a second motor, where the second motor is used for coarse adjustment of the optical device. Moving the magnet members is achieved by applying a current to the respective coils, causing the magnet members to move within the coils. The second axis adjustment can be performed concurrently with the first axis adjustment.

In another embodiment, the method involves a fine adjustment for a multi-axis motor. The first and second axes of a motor are adjusted by moving the respective magnet members in their coils. The magnet members are elongate and curved along their lengths. The second magnet member is rigidly coupled with the first magnet member. An optical device is attached to a support structure, and the magnet members protrude from the support structure at right angles. The method also includes the use of additional coils and an optical device coupled with the magnet members.

Overall, the patent describes methods for using a multi-axis motor to adjust the position of an optical device. The use of curved magnet members and coils allows for precise fine adjustment, while the inclusion of additional coils and a support structure enables coarse adjustment. The patent also mentions the materials used for the magnet members (neodymium) and the hub (aluminum).

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.