 Below the prism is an achromatic eye-piece, having an adjustable slit between the two lenses, the upper lens being furnished with a screw motion to focus the slit. A side slit, capable of adjustment, admits, when required, a second beam of light from...  Spectrum analysis, 6 lects - Page 219by sir Henry Enfield Roscoe - 1873Full view - About this book
 | John Henry Pepper - 1877 - 764 pages
...conveniently examined, and accurately investigated, by means of Sorby and Browning's new Microspectroscope." slit, capable of adjustment, admits, when required,...field with that obtained from the object on the stage A is a brass tube carrying the compound direct-vision prism. B is a milled head, with screw motion... | |
 | John Browning (F.R.A.S.) - 1878 - 80 pages
...consisting of several parts. The prism is contained in a small tube, A, which can be removed at pleasure. Below the prism is an achromatic eye-piece, having...field with that obtained from the object on the stage (Fig. 24, page 46). A (Fig. 23) is a brass tube carrying the compound direct-vision prism, and has... | |
 | Every boy - 1881 - 932 pages
...being furnished with a screw motion to focus the slit. A side slit, capable of adjustment, adjusts, when required, a second beam of light from any object...on the stage of the microscope. This second beam of n light strikes against a very small prism suitably placed inside the apparatus, and is reflected up... | |
 | John Browning (F.R.A.S.) - 1882 - 108 pages
...consisting of several parts. The prism is contained in a small tube, A, which can be removed at pleasure. Below the prism is an achromatic eye-piece, having...the object placed on the stage of the Microscope. 46 This second beam of light strikes against a very small prism suitably placed inside the apparatus,... | |
 | Jabez Hogg - 1886 - 816 pages
...eye-piece, having an adjustable slit between the two lenses, the upper lens being furnished with a scre\» motion to focus the slit. A side slit, capable of...the same field with that obtained from the object on tht stage. A is a brass tube, carrying the compound direct vision prism, p, a milled head, with screw... | |
 | Robert Routledge - 1893 - 732 pages
...consists of several parts. The prism is contained in a small tube, which can be removed at pleasure ; below the prism is an achromatic eye-piece, having...spectrum in the same field with that obtained from :he object on the stage. A is a brass tube carrying the compound directvision prism, and has a sliding... | |
 | Robert Routledge - 1896 - 780 pages
...consists of several parts. The prism is contained in a small tube, which can be removed at pleasure : below the prism is an achromatic eye-piece, having...compare with that of the object placed on the stage of tho microscope. This second beam of light strikes against a very small prism suitably placed inside... | |
 | Jabez Hogg - 1898 - 780 pages
...body-tube of the microscope, the prism of which is contained in a small tube, removable at pleasure. Below the prism is an achromatic eye-piece, having...the object placed on the stage of the microscope. ig. 195. —The Sorby-Browning Jlicro-spectroscopic Eye-piece. TITB MICROSCOPE. This second beam of... | |
 | Robert Routledge - 1903 - 882 pages
...consists of several parts. The prism is contained in a small tube, which can be removed at pleasure ; below the prism is an achromatic eye-piece, having...field with that obtained from the object on the stage. A is a brass tube carrying the compound directvision prism, and has a sliding arrangement for roughly... | |
 | Isaac Ott - 1904 - 680 pages
...consisting of several parts. The prism is contained in a small tube, which can be removed at pleasure. Below the prism is an achromatic eyepiece, having...field with that obtained from the object on the stage. Fig. 23. — Sorby-Browning Microspectroscope. A is a brass tube carrying the compound direct-vision... | |
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