에드몬드옵틱스는 당사 웹사이트의 기능과 콘텐츠를 최적화하고 개선하기 위해 쿠키를 사용합니다.‘OK’ 버튼을 클릭하면 전체 쿠키 정책에 동의하게 되며,‘세부 정보 표시’ 버튼을 클릭하면 더 자세한 정보를 확인할 수 있습니다.당사는 수집된 쿠키를 통해 제공되는 정보를 판매하지 않으며 해당 정보는 사용자 경험을 개선하는 용도로만 사용됩니다.
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Some of the data collected by this provider is for the purposes of personalization and measuring advertising effectiveness.
Both DIN (Deutsches Institut für Normung) and JIS (Japanese Industrial Standards) are industry standards for microscope objectives and eyepieces.
When referring to microscopes, a DIN standard eyepiece or objective uses a basic 160mm tube length. DIN microscopes begin with an object-to-image distance of 195mm, then fix the object distance at 45mm. The remaining 150mm distance to the eyepiece field lens sets the internal real image position, which is defined as 10mm from the end of the mechanical tube (which gives the 160mm tube length). DIN standard eyepieces have an international standard 23mm diameter. DIN standard objectives often times have "DIN" etched on the side and have a standard 0.7965" diameter thread, 36 TPI, 55° Whitworth threading.
A JIS standard system has a 170mm tube length. JIS standard eyepieces also have an international standard 23mm diameter, however JIS standard fixed the object distance at 30mm. JIS standard objectives also have a standard 0.7965" diameter thread, 36 TPI, 55° Whitworth threading.
Most microscopes are DIN standard. DIN and JIS standards are interchangeable from a mechanical point-of-view. Please note, however, that the magnification of a microscope is calculated by multiplying the objective and eyepiece power together. This is assuming you have the same standard microscope, eyepiece and objective. If your eyepiece, objective, or tube length does not conform to the same standard, then recalculation of the total magnification is necessary. Also note that non-standardized microscopes exist, so be careful when choosing an eyepiece or objective.
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