Camera module

Patent metadata

Field	Value
Publication number	US-10848656-B2
Application number	US-201816115611-A
Country	US
Kind code	B2
Filing date	Aug 29, 2018
Priority date	May 25, 2017
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A camera module includes: a lens module disposed in a housing and a stop module coupled to the lens module. The stop module includes apertures having different diameters from each other so as to selectively change an amount of light incident on the lens module, a magnet portion to select any one of the apertures by movement of the magnet portion, and a coil disposed on the housing facing the magnet portion to move the magnet portion.

First claim

What is claimed is:

1. A camera module, comprising:
a housing;
a lens module accommodated in the housing;
a stop module comprising two or more plates and a magnet; and
a stop driver configured to drive the two or more plates,
wherein the stop driver comprises a coil disposed in the housing fixed with respect to the housing and the magnet disposed to be opposite to the coil in a direction intersected with an optical axis direction.

2. The camera module of claim 1 , wherein movement directions of the two plates interlocked with the stop driver are different from each other.

3. The camera module of claim 1 , wherein the through-holes of the two plates comprise a shape in which a plurality of holes having different sizes are connected to each other.

4. The camera module of claim 1 , wherein the through-holes of the two plates comprise a substantially gourd-like shape.

5. The camera module of claim 1 , wherein the magnet is configured to move together with the lens module in an optical axis direction.

6. The camera module of claim 1 , wherein the magnet is configured to move linearly in a direction substantially perpendicular to an optical axis direction.

7. A camera module, comprising:
a housing;
a lens module accommodated in the housing; and
a stop module comprising one or more plates,
wherein the housing comprises a first image stabilization (OIS) driving coil configured to provide a first driving force to move the lens module in a first direction perpendicular to the optical axis direction, a second OIS driving coil configured to provide a second driving force to move the lens module in a second direction perpendicular to the first direction and the optical axis direction, an autofocus (AF) driving coil configured to provide a third driving force to move the lens module in the optical axis direction, and a stop driving coil configured to drive at least one of the one or more plates of the stop module fixedly disposed on the surfaces of the housing that are parallel to an optical axis direction.

8. The camera module of claim 7 , wherein the first OIS driving coil, the second OIS driving coil, the AF driving coil, and the stop driving coil are disposed on a substrate fixed to the housing.

9. A camera module, comprising:
a housing;
a lens module accommodated in the housing;
a stop module comprising two or more plates; and
a stop driver configured to drive the two or more plates,
wherein the stop driver comprises a magnet holder that is linearly movable in a first direction perpendicular to an optical axis direction, connected to one or more of the two or more plates, and extending in the optical axis direction to a greater distance than extending in a second direction perpendicular to the optical axis direction and perpendicular to the first direction.

10. The camera module of claim 9 , wherein the stop driver further comprises a coil disposed in the housing that interacts with a magnet disposed in the magnet holder to drive the one or more of the two or more plates.

Assignees

• Samsung Electro Mech

Inventors

• Park Chuel Jin
• Lim Soo Cheol
• Lee Jung Seok
• Seo Sang Ho

Classifications

• G03B9/04 Primary

  Single movable plate with two or more apertures of graded size, e.g. sliding plate or pivoting plate · CPC title

• H04N23/55 Primary

  Optical parts specially adapted for electronic image sensors; Mounting thereof · CPC title

• H04N23/51 Primary

  Housings · CPC title

• H04N23/54

  Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title

• G03B9/06

  Two or more co-operating pivoted blades, e.g. iris type (shutters functioning as diaphragms by limiting extent of opening movement G03B9/08) · CPC title