| parfocal objectives | <microscopy> Objectives which are mounted so that only a small adjustment of the bodytube and stage is necessary to focus after changing from one objective to any of the others. They are mounted in such a way that the back focal plane is in the same position on the optical axis of the microscope for each objective. Objectives used on a rotating nosepiece are usually parfocal. Eyepieces are also parfocal within any given manufacturer's (05 Aug 1998) |
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| eyepiece, parfocal | <microscopy> Eyepieces with common focal planes so that they are interchangeable without refocusing. (05 Aug 1998) |
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| parfocal |
A lens design such that allows specimens to remain focused at different magnification powers.
출처: www.themicroscopesite.com/microscope-glossary3.htm
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| parfocal |
A microscope that is
출처: www.greatscopes.com/glossary.htm
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| parfocal |
Two optical devices which are at the same focus when interchanged. The simplest example of parfocal is when two eyepieces are set to the same focus. Given: 9mm and 26mm eyepieces. Insert the 9mm all the way into the eyepiece holder so that it is flush with the holder and then focus to the eyepiece. Drop in the 26mm eyepiece holder. If you allow it to be also flush with the holder, the image will not be in focus. ...
출처: www.s-i-g-h.com/astroglossary.html
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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