• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.256-259
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• 2003

This paper proposes OPTICAL MARKER fer registering process - one of the 3D measurement process : scan registering - merging - measurement. If the registering work is carried out manually, it can be accompanied with much time and many errors. Because the patterned marker make registering process automatic, many firms use it now. But the physical shape of existing markers is the source of the data loss caused by hiding surface, and the marker arrangement is the source of the time loss. The optical marker proposed in this paper has marker generator, organized a large number of binary coded control laser diode, separate from 3D scan object. So, it does not take much time for the marker disposition, and it is not the origin of the data loss, and the binary coded laser information make the auto-registering possible.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.26 no.9
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• pp.1727-1735
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• 2002

The usage of beam scanning type laser marker is rapidly increasing in the field of semiconductor equipment. A device called ″beam adjuster″ is employed to adjust the visible diode laser, which points the marking position for various setting. The device is very sensitive to manufacturing tolerance and assembly condition. Axiomatic approach has been applied to the design of the device. An existing design is analyzed based on the Independence Axiom. The existing design is found to violate the axiom. Two new designs are proposed to satisfy the Independence Axiom. The Information Axiom is utilized to evaluate the designs. A design is selected to have the minimum information content. The significance of this research is that a full cycle of axiomatic design is applied to a real engineering product.

• Journal of the Korean Society for Precision Engineering
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• v.21 no.5
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• pp.166-173
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• 2004

Axiomatic Design has been developed as a general design framework during past two decades and TRIZ has been developed for a design tool over 50 years. Axiomatic design is quite excellent in that the design should be decoupled. When a design matrix is established, the characteristics of the design are identified concerning the coupling properties. If the design is coupled, a decoupling process should be found. However, axiomatic design does not specifically indicate how to decouple. In this paper, a design method is developed to use TRIZ in the decoupling process. The decoupling ideas are extracted from the substance field analysis and various methods in TRIZ. The mettled is applied applied to the conceptual design of a beam splitter for the laser marker and the results are analyzed.

• Journal of Microbiology and Biotechnology
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• v.17 no.7
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• pp.1079-1082
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• 2007

Chromosome microdissection and the reverse FISH technique is one of the most useful methods for the identification of structurally abnormal chromosomes. In particular, the laser microbeam microdissection (LMM) method allows rapid isolation of a target chromosome or a specific region of chromosomes without damage of genetic materials and contamination. Isolated chromosomes were directly amplified by the degenerate oligonucleotide-primed polymerase chain reaction (DOP-PCR), and then the FISH probes labeled with spectrum green- or spectrum red-dUTP were generated by nick-translation. Whole chromosome painting (WCP) probes were successfully generated from only 5 copies of the chromosome. With this method, we produced 24 WCP probes for each human chromosome. We also tried to characterize a marker chromosome, which seemed to be originated from chromosome 11 on conventional banding technique. The marker chromosomes were isolated by the LMM method and analyzed by reverse FISH. We elucidated that the marker chromosome was originated from the short arm of chromosome 5 ($5p11{\to}pter$). A fully automated and computer-controlled LMM method is a very simple laboratory procedure, and enables rapid and precise characterization of various chromosome abnormalities.

• The Optical Journal
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• s.123
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• pp.57-57
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• 2009

• The monthly packaging world
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• s.205
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• pp.76-80
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• 2010

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.53 no.1
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• pp.1-6
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• 2004

In this paper, we present the new method for joint aspect inspecting system. We use the image processing and laser maker for light source. We can find the matrial joint status through processing the line pattern which is made by laser maker. To get the line pattern, in first, we did the preprocess of threshold. If the shape of line had over two segments, then the joint status is abnormal. We show our system efficency by experiment on tire facility.

• Journal of information and communication convergence engineering
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• v.21 no.3
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• pp.252-260
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• 2023

A bullet launcher can be developed as a smart instrument, especially for use in the military section, that can track, identify, detect, mark, lock, and shoot a target by implementing an image-processing system. In this research, the application of object recognition system, laser encoding as a unique marker, 2-dimensional movement, and pneumatic as a shooter has been studied intensively. The results showed that object recognition system could detect various colors, patterns, sizes, and laser blinking. Measuring the average error value of the object distance by using the camera is ±4, ±5, and ±6% for circle, square and triangle form respectively. Meanwhile, the average accuracy of shots on objects is 95.24% and 85.71% in indoor and outdoor conditions respectively. Here, the average prototype response time is 1.11 s. Moreover, the highest accuracy rate of shooting results at 50 cm was obtained 98.32%.

• The Journal of Korean Physical Therapy
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• v.13 no.3
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• pp.603-611
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• 2001

This study was performed. using EGF, to observated the effect of GaAIAs laser on wound model induced designedly in lumbar region. The results of this study were as following: 1. In expression of EGF which used marker of wound healing, laser irradiating group made EGF to more induce significantly than laser non-irradiating group at 3 days. 2. EGF immunoreactivity in epidermis were increased markedly 3 days after wound, and increased gradually from 1 day to 2 days in wound which is laser irradiation. Therefore, EGF immunoreactivity which increased after wound with GaAIAs laser irradiation indicate that GaAIAs laser have wound healing effect. This study also can become a part of scientific evidence on electrotherapy through measuring quantitively effects of GaAIAs laser in wound

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.10a
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• pp.1085-1087
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• 2002

Deformation of soft tissue is known inhomogeneous and non-linear in general. In this study, we propose a measurement methodology of local/global strain during soft tissue elongation precisely using laser extensometer which has high accuracy, resolution and is possible to measure global/local strain. The mechanical tensile test are performed on tibialis cranialis, flexor hallucis longus, extensor digitorum longus of swine hindlimb. In order to measure target displacement, reflective marker is attached to detect elongation on specimen using surgical adhesive. The result of this study is to show that laser extensometer is valid to measure longitudinal elongation which is inhomogeneous and non-linear fur soft tissue.