| 영문 | micrometer | 한글 | 마이크로미터, 미세측정기 |
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| 설명 | 현미경을 통해서 볼수 있는 대상물을 측정하는 기구. 정확한 피치를 가진 나사를 이용하여 길이를 잰다. U자형 프레임의 한쪽 끝에는 고정된 앤빌(anvil)이 있고, 다른쪽 끝의 슬리브(sleeve) 안쪽은 암나사로 되었으며, 정밀도가 높은 피치의 작은 수나사인 스핀들이 그 속에 들어있다. 스핀들의 바깥쪽에는 심블(thimble)이 있으며, 이것을 회전시키면 스핀들이 축방향으로 이동하게 되어 있다. 슬리브에는 축방향으로 눈금이 매겨졌고, 심블에는 원주 방향으로 원주를 50등분한 눈금이 매겨져 있어 1눈금으로 0.01mm를 읽을 수 있다. |
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| caliper micrometer | A gauge with a calibrated micrometer screw for the measurement of thin objects such as microscope cover glasses and slides. (05 Mar 2000) |
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| micrometer | An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given directly is that of the image of the object formed at the focus of the object glass. Circular, or Ring, micrometer, a metallic ring fixed in the focus of the object glass of a telescope, and used to determine differences of right ascension and declination between stars by observations of the times at which the stars cross the inner or outer periphery of the ring. Double image micrometer, a micrometer in which two images of an object are formed in the field, usually by the two halves of a bisected lens which are movable along their line of section by a screw, and distances are determined by the number of screw revolutions necessary to bring the points to be measured into optical coincidence. When the two images are formed by a bisected objects glass, it is called a divided-object-glass micrometer, and when the instrument is large and equatorially mounted, it is known as a heliometer. Double refraction micrometer, a species of double image micrometer, in which the two images are formed by the double refraction of rock crystal. Filar, or Bifilar, micrometer. See Bifilar. <mechanics> Micrometer caliper or gauge, a caliper or gauge with a micrometer screw, for measuring dimensions with great accuracy. Micrometer head, the head of a micrometer screw. Micrometer microscope, a compound microscope combined with a filar micrometer, used chiefly for reading and subdividing the divisions of large astronomical and geodetical instruments. Micrometer screw, a screw with a graduated head used in some forms of micrometers. Position micrometer. See Position. Scale, or Linear, micrometer, a minute and very delicately graduated scale of equal parts used in the field of a telescope or microscope, for measuring distances by direct comparison. Origin: Micro-: cf. F. Micrometre. Source: Websters Dictionary (01 Mar 1998) |
| slide micrometer | A scale made on a microscope slide with lines ruled in divisions, usually, of 0.01 mm; typically used to calibrate an ocular micrometer. (05 Mar 2000) |
| ocular micrometer | A glass disk that fits in a microscope eyepiece and that has a ruled scale; when calibrated with a slide micrometer, direct measurements of a microscopic object can be made. (05 Mar 2000) |
| filar micrometer | An ocular micrometer with a line moved by a ruled drum such that a movement of the line of 5 um or less may be made in relation to fixed parallel lines. (05 Mar 2000) |
| Ramsden eyepiece | <microscopy> An ocular consisting of two plano-convex lenses with the plane side of the lower lens nearer the objective. The focal plane is outside the system, hence it is of the positive type with the diaphragm below the lenses. While this eyepiece gives a somewhat flatter field than the Huygenian and for this reason has been used in the past for micrometre oculars, the colour correction is poor with the formation of colour fringes around the object. The modern Ramsden eyepiece has an achromatic doublet for the eye lens to correct for colour. (05 Aug 1998) |
| reticle eyepiece | <microscopy> A microscope ocular having at its focal plane a reticle. (05 Aug 1998) |
| periplan eyepiece | <microscopy> A compensating type of eyepiece made by Leitz with a doublet for the eyelens. The field is larger and flatter than the regular compensating ocular, but there is apt to be spherical aberration or distortion present near the periphery of the field. (05 Aug 1998) |
| planoscopic eyepiece | <microscopy> An American Optical Company (Reichert) eyepiece designed to flatten the field of achromatic objectives. (05 Aug 1998) |
| widefield eyepiece | <microscopy> An ocular with an achromatic doublet for the eyelens and with the plane side of the lower lens nearest the objective. Such a corrected system does not have to be stopped down with a diaphragm, hence a large flat field is achieved. A positive achromatic eyepiece, having a large eye lens and a high eye point, intended primarily for use with widefield binocular microscopes. (05 Aug 1998) |
| holoscopic eyepiece | <microscopy> An eyepiece suitable for achromatic, fluorite and apochromatic objectives. The eyelens can be adjusted closer to or further away from the field lens to spherically correct for the various types of objectives. (This adjustment also changes the magnification of the eyepiece.) (05 Aug 1998) |
| Huygenian eyepiece | <microscopy> An under corrected (blue rim at periphery of field) ocular designed by Huygens for the telescope and later adopted for achromatic objectives. This ocular consists of two plano-convex lenses separated by a diaphragm, hence it is of the negative type with the focal plane inside the system. Both plane surfaces face the eye, as distinguished from the Ramsden eyepiece. (05 Aug 1998) |
| hyperplane eyepiece | <microscopy> A special eyepiece made by Bausch & Lomb for flattening the visual field. (05 Aug 1998) |
| negative eyepiece | <microscopy> An eyepiece in which the real image of the object is formed between the lens elements of the eyepiece. (05 Aug 1998) |
| eyepiece | <microscopy> The lens system used in an optical instrument for magnification of the image formed by the objective. (05 Aug 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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