LENS ASSEMBLY AND LASER PROCESSING APPARATUS INCLUDING THE SAME

The present invention relates to a lens assembly and a laser processing device including the lens assembly. The lens assembly of one embodiment comprises first to fifth lenses spaced apart from each other along one direction and arranged sequentially, wherein the first lens, the second lens, and the...

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Main Authors BAE YOONGYEONG, LEE SUJIN, KIM WONYONG, HAN DEOK HOON
Format Patent
LanguageEnglish
Korean
Published 11.10.2023
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Abstract The present invention relates to a lens assembly and a laser processing device including the lens assembly. The lens assembly of one embodiment comprises first to fifth lenses spaced apart from each other along one direction and arranged sequentially, wherein the first lens, the second lens, and the fifth lens have a negative focal length, and the third lens and the fourth lens may have a positive focal length. The focal length of the first lens is smaller than the focal length of the second lens, and the focal length of the third lens may be larger than that of the fourth lens. Thus, a laser beam can be radiated uniformly to a processing area where the laser beam is irradiated without damaging a workpiece. 본 발명은 렌즈 조립체 및 렌즈 조립체를 포함하는 레이저 가공 장치에 관한 것이다. 일 실시예의 렌즈 조립체는 일 방향을 따라 서로 이격되며 순차적으로 배치되는 제1 내지 제5 렌즈들을 포함하고, 상기 제1 렌즈, 상기 제2 렌즈, 및 상기 제5 렌즈는 음의 초점거리를 갖고, 상기 제3 렌즈 및 상기 제4 렌즈는 양의 초점거리를 가질 수 있다. 상기 제1 렌즈의 초점거리의 크기는 상기 제2 렌즈의 초점거리의 크기보다 작고, 상기 제3 렌즈의 초점거리의 크기는 상기 제4 렌즈의 초점거리의 크기보다 클 수 있다.
AbstractList The present invention relates to a lens assembly and a laser processing device including the lens assembly. The lens assembly of one embodiment comprises first to fifth lenses spaced apart from each other along one direction and arranged sequentially, wherein the first lens, the second lens, and the fifth lens have a negative focal length, and the third lens and the fourth lens may have a positive focal length. The focal length of the first lens is smaller than the focal length of the second lens, and the focal length of the third lens may be larger than that of the fourth lens. Thus, a laser beam can be radiated uniformly to a processing area where the laser beam is irradiated without damaging a workpiece. 본 발명은 렌즈 조립체 및 렌즈 조립체를 포함하는 레이저 가공 장치에 관한 것이다. 일 실시예의 렌즈 조립체는 일 방향을 따라 서로 이격되며 순차적으로 배치되는 제1 내지 제5 렌즈들을 포함하고, 상기 제1 렌즈, 상기 제2 렌즈, 및 상기 제5 렌즈는 음의 초점거리를 갖고, 상기 제3 렌즈 및 상기 제4 렌즈는 양의 초점거리를 가질 수 있다. 상기 제1 렌즈의 초점거리의 크기는 상기 제2 렌즈의 초점거리의 크기보다 작고, 상기 제3 렌즈의 초점거리의 크기는 상기 제4 렌즈의 초점거리의 크기보다 클 수 있다.
Author HAN DEOK HOON
BAE YOONGYEONG
KIM WONYONG
LEE SUJIN
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Snippet The present invention relates to a lens assembly and a laser processing device including the lens assembly. The lens assembly of one embodiment comprises first...
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SubjectTerms CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
Title LENS ASSEMBLY AND LASER PROCESSING APPARATUS INCLUDING THE SAME
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