Optical system for zoom-camera
AssigneeSamsung Electronics Co., Ltd.
InventorsJeong-Kil Shin, Byung-Kwon Kang
Life of this patent
Estimating the term…
Abstract
Disclosed is an optical system of a zoom-camera comprises a plurality of lens groups so that the path of a light can be multi-directionally refracted. The optical system comprises a base member, a first lens group mounted on the base member for refracting a light reflected and incident from an object to a first direction, a second lens group for effecting a zoom function, a third lens group for refracting the light passing through the second lens group to a second direction, a fourth lens group for effecting a zoom function as well as a focusing function while compensating a variation of an image plane caused by the zoom function, and power transmission means for transmitting power for sliding the second and fourth lens groups.
Claims22
An optical system of a zoom-camera comprising:
- a base member;
- a first lens group mounted on the base member for refracting an image of an object to a first direction;
- a second lens group arranged in the path of the image refracted by the first lens group, the second lens group being slid along the path of the image to effect a zoom function;
- a third lens group for refracting the image passing through the second lens group to a second direction;
- a fourth lens group arranged in the path of the image refracted by the third lens group, the fourth lens group being slid along the path of the image to effect a zoom function as well as a focusing function while compensating for a variation of an image plane caused by the zoom function;
- and
- power transmission means provided at a predetermined position on the base member to transmit a power for sliding the second and fourth lens groups.
An optical system of a zoom-camera module comprising:
- a base member;
- a first lens group mounted on the base member for refracting a light reflected and incident from an object to a first direction;
- a second lens group arranged on the way of the path of the light refracted by the first lens group, the second lens group being slid along the path of the light to effect a zoom function;
- a third lens group for refracting the light passing through the second lens group to a second direction;
- a zooming cam carrying the first, second and third lens groups, the zooming cam being slid in the horizontal direction on the top surface of the base member and sliding the second lens group in the vertical direction;
- a first driving motor for providing a driving force so as to slide the zooming cam in the horizontal direction;
- a fourth lens group arranged in the path of the light refracted by the third lens group, the fourth lens group being slid along the path of the light to effect a zoom function as well as a focusing function while compensating for a variation of an image plane caused by the zoom function;
- and
- a second driving motor located at a predetermined position on the base member to provide a driving force for sliding the fourth lens group along the path of the light.
An optical system of a zoom-camera module comprising:
- a base member;
- at least one lens group sequentially arranged on the base member to be capable of multi-directionally refracting a light reflected and incident from an object and sliding along the path of the light to effect a zoom function and a focusing function according to the zoom function;
- power transmission means neighboring the lens groups to provide a power for sliding at least one of the lens groups;
- a first gear coupled to the lens group;
- and
- a second gear coupled to the power transmission means, wherein the first and second gears mesh with one another and cause sliding of the lens group.
Dependencies are inferred from the claim text.