US 2022/0019052 A1Published application

Prism driving device

AssigneeLanto Electronic Limited

InventorsFuyuan WU, Yaobang GUO, Shengwen SUN, Bingbing MA, Jie DU, Shangyu HSU

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Abstract

Provided is a prism driving device. The prism driving device includes a housing assembly, a prism holder disposed on the housing assembly in an angle adjustable manner, and an electromagnetic driving assembly. The electromagnetic driving assembly includes a magnet portion and a coil portion disposed opposite the magnet portion, where one of the magnet portion or the coil portion is disposed on the prism holder, the other one is disposed on the housing assembly, and the electromagnetic driving assembly is configured to adjust a tilt angle of the prism holder. One of the housing assembly or the prism holder is provided with a support protrusion and the other is provided with a groove, and at least a portion of the support protrusion is magnetically sucked into the groove.

Claims20

Dependent claims

A prism driving device, comprising:

a housing assembly;
a prism holder disposed in the housing assembly in an angle adjustable manner;
and
an electromagnetic driving assembly comprising a magnet portion and a coil portion disposed opposite to the magnet portion,
wherein one of the magnet portion or the coil portion is disposed on the prism holder, the other one of the magnet portion or the coil portion is disposed on the housing assembly, and the electromagnetic driving assembly is configured to adjust a tilt angle of the prism holder;
wherein one of the housing assembly or the prism holder is provided with a support protrusion and the other one of the housing assembly or the prism holder is provided with a groove, at least a portion of the support protrusion is magnetically sucked into the groove, and the prism holder is capable of being universally moved relative to the housing assembly through the support protrusion and the groove which are in contact with each other.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/204,232Filed 17 Mar 2021
Priority: CN 202010695759.120 Jul 2020
Published: 20 Jan 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G02B 7/1805
For prisms; for mirrors: for prisms
G03B 3/06
Adjusting position of image plane without moving lens: using movable reflectors to alter length of light path
G02B 27/64
Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00: imaging systems using optical elements for…
G02B 27/646
Imaging systems using optical elements for stabilisation of the lateral and angular position of the image: compensating for small deviations, e.g.…