원문정보
All in focus Camera vision system for Mobile Phone based on the Micro Diffractive Fresnel lens systems
초록
영어
A method to focus the object in camera system by applying the Hill climb algorithm from optical lens moving device (voice coil motor:VCM ) is proposed. The focusing algorithm from VCM is focus on the object but in these criteria is a well-known drawback; the focus is good only at same distance objects but the focus is bad (blur image) at different distance objects because of the DOF (Depth of focus:DOF) or DOF at the optical characteristic. Here, the new camera system that describes the Reflector of free curvature systems (or Diffractive Fresnel lens) and the partition of focusing window area is proposed. The method to improve the focus in all areas (different distance objects) is proposed by new optical system (discrete auto in-focus) using the Reflector of free curvature systems (or Diffractive Fresnel lens) and by applying the partition of all areas. The proposal is able to obtain good focus in all areas.
목차
I. 서 론
II. Discrete Auto Focus 곡률 변경 가능한 반도체 소자
III. All in focus
VI. 결 론
참고문헌