Zoom lens assembly and mobile terminal that includes a zoom lens assembly
AssigneeLG Electronics Inc.
InventorHakhae Kim
Life of this patent
Estimating the term…
Abstract
A zoom lens assembly may enlarge/reduce an image without shifting a position of a lens set. A housing, a zoom lens unit and a drive unit may be provided. The zoom lens unit may include a plurality of lenses stationarily arranged within the housing by being spaced apart in prescribed distance from each other along an optic axis. The plurality of the lenses respectively have variable refractive indexes without a position shift. The drive unit may pressurize a prescribed one of the lenses to vary the refractive index of the prescribed lens. The controller may control the drive unit to change a focal distance of the zoom lens unit to enlarge or reduce an image.
Claims18
A zoom lens assembly, comprising:
- a housing;
- a zoom lens unit that includes a plurality of lenses stationarily arranged within the housing by being spaced apart from each other along an optic axis, and the plurality of the lenses respectively have refractive indexes that vary without a position shift of the plurality of the lens;
- a drive unit to pressurize a prescribed one of the lenses and vary the refractive index of the prescribed lens;
- a controller to control the drive unit to change a focal distance of the zoom lens unit to enlarge an image or to reduce an image,
- wherein the drive unit includes:
- a piezoelectric device provided on the prescribed tens;
- and
- a plurality of ducts filled with a conductive paste to electrically connect the controller to the corresponding piezoelectric device.
A zoom lens assembly, comprising:
- a housing;
- a zoom lens unit that includes a plurality of lenses stationarily arranged within the housing by being spaced apart from each other along an optic axis, and the plurality of the lenses respectively have refractive indexes that vary without a position shift of the plurality of the lens;
- a drive unit to apply an electric signal to a prescribed one of the lenses to vary the refractive index of the prescribed lens;
- and
- a controller to control the drive unit to change a focal distance of the zoom lens unit to enlarge an image or to reduce an image,
- wherein the drive unit includes:
- a piezoelectric device provided on the prescribed lens;
- and
- a plurality of ducts filled with a conductive paste to electrically connect the controller to the corresponding piezoelectric device.
A zoom lens assembly, comprising:
- a housing;
- a zoom lens unit having a first lens provided at a first position along an optic axis and a second lens provided at a second position along the optic axis;
- a drive unit to vary a refractive index of the first lens while the first lens remains at the first position along the optic axis and the second lens remains at the second position along the optic axis, wherein the drive unit varies the refractive index of the first lens by pressurizing the first lens or an electric signal is applied to the first lens;
- and
- a controller to control the drive unit to change a focal distance of the zoom lens unit to enlarge an image or to reduce an image,
- wherein the drive unit includes:
- a piezoelectric device provided on the first lens;
- and
- a plurality of ducts filled with a conductive paste to electrically connect the controller to the corresponding piezoelectric device.
Dependencies are inferred from the claim text.