Journal of Korean Ophthalmic Optics Society (한국안광학회지)
- Volume 4 Issue 1
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- Pages.37-43
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- 1999
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- 1226-5012(pISSN)
Ocular Lens Test using Elastic Wave
탄성파를 이용한 안경렌즈 검사
- Joung, Maeng-Sig (Department of Ocular, College of Yeongdong) ;
- Cho, Hyun-Soo (Department of Ocular, College of Yeongdong)
- Received : 1999.05.25
- Published : 1999.06.30
Abstract
Ocular lens failure can be verified by measuring the elastic wave velocity diffraction patterns of monochromatic wave applied with elastic wave were detected using optical heterodyne method. The elastic wave velocity was measured by analysing the diffraction patterns. According to measured results of the longitudinal elastic wave velocity of the middle index-refraction and high index-refraction lens are 6588.5575 m/s and 3973.53 m/s, respectively.
굴절률이 같은 안경렌즈에 탄성파를 이용한 단색광의 회절무늬로부터 렌즈에 전달되는 탄성파의 속도를 측정하여 렌즈의 불량 유무(有無)를 확인 할 수 있다. 광학적 heterodyne 방법으로 광의 회절무늬를 얻어 종 탄성파의 속도를 측정한 결과 안경렌즈의 경우 중굴절 렌즈는 평균 6588.5575 m/s이고, 고굴절 렌즈는 평균 3973.53 m/s로 측정되었다.
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