• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.313-315
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• 2011

Smart phone camera module are mounted on the focus are 2 types depending on the behavior. AF (Auto focus) camera module and the FF (Fixed focus) camera module two are different types. AF camera module to move the location of the lens and is a way to automatically focus, FF camera module lens position of the focus is the way to a fixed state. EDOF camera module the location of the lens as a frozen state EDOF AF module using the algorithm to focus on applied technology is a module. In this paper, optimization EDOF camera module implementation of the resolution.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2005.11a
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• pp.740-742
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• 2005

In the past, a mobile phone had only a function of communication. Recently, new functions such as an mp3 player and a camera are added in a mobile phone. For the application of a camera module to a mobile phone, the size of the camera module needs to become smaller than a general Digital Camera. Furthermore, it is also required that the performance of the camera module in a mobile phone be the same as that of a Digital Camera. In order to fulfill these requirements, the camera module should have functions such as Auto Focus, Zoom, the shutter and the aperture. Therefore, we introduce a simple and effective actuator and propose the shutter composed of solenoid.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.6
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• pp.1381-1385
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• 2011

Hand-phone in the recently released high-end applied to the Camera Module is equipped with the most features Auto Focusing Camera Module and much greater importance of the pixel count is much more precise and reliable AF-powered products are being demanded by consumers. This paper is available now apply the Camera Module VCM (Actuator) for Auto Focusing Lens focal point of the problem location and resolution of positional deviation occurs Module Warranty and stable resolution of the improved structure for Actuator Drive Change the structure VCM is proposed

• Journal of Institute of Control, Robotics and Systems
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• v.15 no.8
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• pp.786-791
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• 2009

Recently, digital camera module has been extensively utilized in mobile devices. The digital camera module should be smaller and lighter than digital still camera module to be used in mobile device. But, mobile camera can't get high quality image as good as the one of digital still camera due to the optical limitation of minimized module. Especially, AE system of mobile camera occurs excessive hunting and oscillation due to miniaturization of module. In this paper, improved AE algorithm which is applied fuzzy PI control is suggested to compensate this point.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.307-309
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• 2011

The recently-released camera modules assembled into high-end handsets generally carry auto focusing function. The resolution size of the camera modules is getting higher, and customers demand more precise and stable auto focusing function. When auto focusing function is getting performed, the camera modules applied to VCM usually have the problems, which are an error of lens focusing position and resolution deviation according to the shift of one's position. For this reason, I propose Hybrid VCM that has an improved structure for a stable work of actuator and higher resolution level.

• International journal of advanced smart convergence
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• v.12 no.3
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• pp.25-31
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• 2023

This paper designs a real-time video playback system using a web camera in the RTSP server. It designs a function to play the video data of the web camera in the client in real time using the web camera in the server and using the RTSP protocol. It consists of a server module function that produces real-time video information using a web camera and a client module function that plays video received from the server in real time. The experiment was conducted by establishing an environment for designing a real-time video playback system using a web camera. As a result of the experiment, it was confirmed that real-time video playback from the server's web camera worked well.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.11a
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• pp.41-42
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• 2008

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.06a
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• pp.935-936
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• 2008

• Journal of the Korean Society for Precision Engineering
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• v.25 no.6
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• pp.26-32
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• 2008

• Proceedings of the International Microelectronics And Packaging Society Conference
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• 2006.10a
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• pp.37-45
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• 2006

The mobile-phone which Camera was put on was released at the end of 2000 and dramatically puts up the deployment ratio because not only simple Camera but also a function that the photograph which I took is dispatched was added. It is the force that demand in this year presses 600,000,000 sale of a mobile-phone is estimated to be 960,000,000 of them in 2006, and to be able to include two errands with a support model after 3G. A person of entry to a camera-module appear much. In addition, the various kinds of products open markedly which a product comes to be known widely in the world, and the application range has opened widely, and considered QCDT come to be key issues for answer to market demand. By manufacturing industry, there is peculiar culture to each industry, camera-module is the composition the various industries. The construction of true Supply-chain becomes unavoidable to make a good product. I describe the point that the situation of each supply-chain and the direction for the future by the view point of module assembly maker.