Camera lens module

• US 9,885,881 B2
• Filed: 11/02/2016
• Issued: 02/06/2018
• Est. Priority Date: 03/07/2014
• Status: Active Grant

• Current Assignee: Jahwa Electronics Company Limited
• Original Assignee: Jahwa Electronics Company Limited
• Inventors: Kim, Hee Seung, Kim, In Soo, Han, Noh Yo
• Primary Examiner(s): PRABHAKHER, PRITHAM DAVID
• Application Number:
  US15/341,286
• Publication Number:
  US 20170075130A1
• Time in Patent Office: 461 Days
• Field of Search: 34820812
• CPC Class Codes: G02B 27/646 compensating for small deviations, e.g. due to vibration or shake movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68
• CPC Class Codes: G02B 5/208 for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
• CPC Class Codes: G02B 7/006 Filter holders
• CPC Class Codes: G02B 7/08 adapted to co-operate with a remote control mechanism
• CPC Class Codes: G02B 7/09 adapted for automatic focusing or varying magnification
• CPC Class Codes: G03B 13/36 Autofocus systems
• CPC Class Codes: G03B 2205/0007 Movement of one or more optical elements for control of motion blur
• CPC Class Codes: G03B 2205/0015 by displacing one or more optical elements normal to the optical axis
• CPC Class Codes: G03B 2205/0053 Driving means for the movement of one or more optical element
• CPC Class Codes: G03B 2205/0069 using electromagnetic actuators, e.g. voice coils
• CPC Class Codes: G03B 3/10 Power-operated focusing
• CPC Class Codes: G03B 5/00 Adjustment of optical system relative to image or object surface other than for focusing
• CPC Class Codes: G03B 5/04 Vertical adjustment of lens; Rising fronts
• CPC Class Codes: H04N 23/54 Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
• CPC Class Codes: H04N 23/55 Optical parts specially adapted for electronic image sensors; Mounting thereof
• CPC Class Codes: H04N 23/57 Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
• CPC Class Codes: H04N 23/67 Focus control based on electronic image sensor signals
• CPC Class Codes: H04N 23/682 Vibration or motion blur correction
• CPC Class Codes: H04N 23/685 performed by mechanical compensation

Abstract

A camera lens module according to an embodiment of the present invention is configured to include an autofocus carrier driven by an autofocus driving unit to advance and retreat along an optical axis and having an upper portion open in an optical axis direction; an optical image stabilizer stopper located at the open portion of the autofocus carrier; and an optical image stabilizing carrier configured to accommodate a lens barrier and located between the autofocus carrier and the optical image stabilizer stopper, the optical image stabilizing carrier being driven by an optical image stabilizer driving unit to perform optical image stabilization in a direction perpendicular to the optical axis, wherein a movement of the optical image stabilizing carrier in an optical axis direction is limited by the optical image stabilizer stopper located at the autofocus carrier.

Claims

1. A camera lens module, comprising:

an autofocus carrier driven by an autofocus driving unit to advance and retreat along an optical axis and having an upper portion open in an optical axis direction;

an optical image stabilizer stopper separately provided at the open upper portion of the autofocus carrier as a plate form; and

an optical image stabilizing carrier configured to accommodate a lens barrel and located between the autofocus carrier and the optical image stabilizer stopper, the optical image stabilizing carrier being driven by an optical image stabilizer driving unit to perform optical image stabilization in a direction perpendicular to the optical axis,

wherein the optical image stabilizing carrier has an upper closed part which is detachably attached to the optical image stabilizer stopper; and

wherein the optical axis direction is a Z axis direction and the direction perpendicular to the optical axis is a X axis direction and a Y axis direction, and

wherein a first movement of the optical image stabilizing carrier in the optical axis direction is limited by the optical image stabilizer stopper and a second movement of the optical image stabilizing carrier in both the X axis direction and the Y axis direction are guided by the optical image stabilizer stopper.

2. The camera lens module according to claim 1, further comprising:

a base configured to accommodate the autofocus carrier to advance and retreat in the optical axis direction; and

an autofocus stopper provided on the base to limit a movement of the autofocus carrier in the optical axis direction.

3. The camera lens module according to claim 2,

wherein, the autofocus driving unit is located between the autofocus carrier and the base.

4. The camera lens module according to claim 3,

wherein the autofocus driving unit includes:

an autofocus coil installed at the base; and

an autofocus magnet installed at the autofocus carrier to face the autofocus coil.

5. The camera lens module according to claim 2,

wherein, the optical image stabilizer driving unit is located between the optical image stabilizing carrier and the base.

6. The camera lens module according to claim 5,

wherein the optical image stabilizer driving unit includes:

a coil installed at the base; and

a magnet installed at the optical image stabilizing carrier to face the coil.

7. The camera lens module according to claim 1, further comprising:

a rolling unit configured to be placed between the autofocus carrier and the optical image stabilizing carrier to support the optical image stabilizing carrier so that the optical image stabilizing carrier moves in the direction perpendicular to the optical axis.

8. The camera lens module according to claim 7,

wherein the rolling unit includes:

two or more supporting pieces respectively provided at a corner of the autofocus carrier in one piece and having a concave accommodating surface formed on a top surface thereof;

two or more seating pieces formed on a circumference of the optical image stabilizing carrier in a projected form to be correspondent to the supporting pieces and respectively having a concave accommodating surface formed on a bottom surface thereof; and

two or more balls interposed between the supporting piece and the seating piece so that a portion and another portion of the balls are respectively accommodated on the accommodating surfaces of the supporting piece and the seating piece.

9. The camera lens module according to claim 1, wherein the optical image stabilizing carrier has an upper open part that accommodates the lens barrel and the optical image stabilizing carrier is guided by the optical image stabilizer stopper for movement in the X axis direction and the Y axis direction.

10. A camera lens module, comprising:

an autofocus carrier driven by an autofocus driving unit to advance and retreat along an optical axis and having an upper portion open in an optical axis direction;

an optical image stabilizer stopper separately provided at the open upper portion of the autofocus carrier as a plate form; and

an optical image stabilizing carrier configured to accommodate a lens barrel and located between the autofocus carrier and the optical image stabilizer stopper, the optical image stabilizing carrier being driven by an optical image stabilizer driving unit to perform optical image stabilization in a direction perpendicular to the optical axis,

wherein a first movement of the optical image stabilizing carrier in the optical axis direction is limited by the optical image stabilizer stopper and a second movement of the optical image stabilizing carrier in the direction perpendicular to the optical axis is guided by the optical image stabilizer stopper, and

wherein the optical image stabilizing carrier has an upper open part that accommodates the lens barrel and an upper closed part which is detachably attached to the optical image stabilizer stopper so that the optical image stabilizing carrier is guided by the optical image stabilizer stopper for the second movement in the direction perpendicular to the optical axis.