Jin-ok Ha

Title: Innovations by Jin-ok Ha in Autofocus Technology

Introduction

Jin-ok Ha is a notable inventor based in Suwon-si, South Korea. He has made significant contributions to the field of autofocus technology, holding 2 patents that enhance the functionality and efficiency of imaging devices. His work is particularly relevant in the context of modern photography and videography, where precise focus adjustment is crucial.

Latest Patents

One of Jin-ok Ha's latest patents is titled "Apparatus for adjusting autofocus using luminance correction and method of controlling the same." This invention provides an apparatus that includes an imaging device to photograph light from a subject, generating an image signal. The apparatus features a contrast calculation unit that calculates a first contrast value from the image signal. If this first contrast value is equal to or less than a reference value, a correction unit adjusts the luminance of the image signal. Subsequently, a focus adjustment unit uses a second contrast value, calculated from the corrected image signal, to improve focus adjustment functionality.

Another significant patent is the "Auto focus adjusting device and method and recording medium of the same method." This invention outlines a method that derives an input image from an image capturing device by changing the position of a focus lens. It also includes deriving a gamma correction image by applying a gamma curve to the input image, ultimately leading to the derivation of an auto focus (AF) value concerning the position of the focus lens through the gamma correction image.

Career Highlights

Jin-ok Ha is currently employed at Samsung Electronics Co., Ltd., a leading company in the technology sector. His work at Samsung has allowed him to be at the forefront of innovation in imaging technology, contributing to the development of advanced autofocus systems.

Collaborations

Throughout his career, Jin-ok Ha has collaborated with talented individuals such as Kazuhiko Sugimoto and Young-ha Hwang. These collaborations have fostered a creative environment that encourages the exchange of ideas and technological advancements.

Conclusion

Jin-ok Ha's contributions to autofocus technology through his innovative patents demonstrate his expertise and commitment to enhancing imaging devices. His work continues to influence the field, making significant strides in the way we capture images today.