LENS BARREL AND IMAGING DEVICE
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United States of America Patent
Stats
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N/A
Issued Date -
Nov 16, 2023
app pub date -
Jul 24, 2023
filing date -
Jul 24, 2023
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A lens barrel includes an element displaced by application of voltage; an elastic body having a contact surface coming into contact with the element, a drive surface to produce a vibration wave by displacement of the element, and a plurality of grooves; a moving element come into contact with the drive surface and rotated by the vibration wave; an annular ring rotated by rotating of the moving element; and a lens moved in an optical axis direction by rotating of the annular ring; wherein the element mainly contains a material having potassium sodium niobate, potassium niobate, sodium niobate, or barium titanate, wherein a value of [(T/B)÷W] is in a range of 0.84 to 1.94, where T represents a depth of the groove, B represents a distance from a bottom part of the groove to the contact surface, and W represents a radial width of the elastic body.
First Claim
Other Claims data not available