DE356402C - Spectral apparatus with fixed deflection and automatically adjustable lenses - Google Patents
Spectral apparatus with fixed deflection and automatically adjustable lensesInfo
- Publication number
- DE356402C DE356402C DEF49745D DEF0049745D DE356402C DE 356402 C DE356402 C DE 356402C DE F49745 D DEF49745 D DE F49745D DE F0049745 D DEF0049745 D DE F0049745D DE 356402 C DE356402 C DE 356402C
- Authority
- DE
- Germany
- Prior art keywords
- lenses
- dispersion
- spectral apparatus
- automatically adjustable
- displacement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000003595 spectral effect Effects 0.000 title claims description 5
- 239000006185 dispersion Substances 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J3/14—Generating the spectrum; Monochromators using refracting elements, e.g. prisms
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Description
Spektralapparat mit fester Ablenkung und selbsttätig einstellbaren Objektiven. Bei gewissen Spektralapparaten und sogenannten Monochromatoren, namentlich solchen für das unsichtbare, lang- oder kurzwellige, Gebiet ist es von besonderem Vorteil, chromatisch nicht korrigierte Objek- tive zu verwenden. Dies bringt aber den Übelstand mit sich, daß beim Übergange von einer Wellenlänge zur anderen drei Einstellungen notwendig sind, zwei an den Objek- tiven und eine an dem Dispersionsprisma. Infolgedessen ist die Verwendung des Ap- parates bei allen Beobachtungen, die einen schnellen Wechsel der Wellenlängen erfordern, ausgeschlossen. Diesen Übelstand beseitigt die vorliegende Erfindung.Spectral apparatus with fixed deflection and automatically adjustable lenses. In certain Spektralapparaten and so-called monochromators, including those for the invisible, long or short wavelength region, it is particularly advantageous chromatically uncorrected objectivity to use tive. However, this brings with it the disadvantage that three settings are necessary when changing from one wavelength to the other, two on the lenses and one on the dispersion prism. As a result, the use of the device for all observations that require a quick change of wavelengths is excluded. The present invention overcomes this drawback.
In der durch Abb. i dargestellten Ausführungsform ist a das Dispersionssystern beliebiger Art auf dem runden Prismentisch r, welcher durch die Schraube b oder eine sonstige Vorrichtung gedreht werden kann. Die Drehung wird an der Trommel c oder einer ähnlichen Vorrichtung meistens unmittelbar in Wellenlängen abgelesen. Das mit der Trommel oder sonstigen Meßeinrichtung verbundene Zahnrad d greift in das Ritzel e ein und dreht mittels der Kegelräder f und g die Schraubenspindeln h und i, welche geeignet gelagert und mit passenden Steigungen versehen sind. Durch diese werden die Objektive k und 1 entsprechend der Wellenlänge, also auch entsprechend der Brennweite verstellt, so daß der Spalt in stets scharf in demselben Punkt n abgebildet wird. Die Vorrichtung kann sowohl von o wie von p aus betätigt werden.In the embodiment illustrated by Fig. I, a is the dispersion system of any kind on the round prism table r, which can be rotated by the screw b or some other device. The rotation is usually read off directly in wavelengths on the drum c or a similar device. The gear wheel d connected to the drum or other measuring device meshes with the pinion e and, by means of the bevel gears f and g, rotates the screw spindles h and i, which are suitably supported and provided with suitable pitches. Through this the objectives k and 1 are adjusted according to the wavelength, thus also according to the focal length, so that the slit is always sharply imaged at the same point n. The device can be operated from both o and p .
Statt der Schraubenspindeln können auch zwei geeignet geformte Kurvenscheiben s durch die Meßschraube gedreht werden, die ihrerseits die Verschiebung der Objektive bewirken, um gegebenenfalls auch Objektive verwenden zu können, bei denen der Gang der Dispersion von dem des Prismas abweicht, oder für den Fall, daß überhaupt ganz anders geartete Dispersionssysteme angewendet werden (Abb. 2). Die in der Abbildung dargestellten Kurvenscfieibens können auch durch je ein mit entsprechender Schnecke versehenes Rohr ersetzt werden, welches das Objektiv umgibt.Instead of the screw spindles, two suitably shaped cam disks s can be rotated by the micrometer, which in turn effect the displacement of the objectives in order to be able to use objectives in which the course of the dispersion deviates from that of the prism, or in the event that Very different types of dispersion systems can be used (Fig. 2). The curves shown in the figure can also be replaced by a tube with a corresponding screw that surrounds the lens.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF49745D DE356402C (en) | Spectral apparatus with fixed deflection and automatically adjustable lenses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF49745D DE356402C (en) | Spectral apparatus with fixed deflection and automatically adjustable lenses |
Publications (1)
Publication Number | Publication Date |
---|---|
DE356402C true DE356402C (en) | 1922-07-24 |
Family
ID=7103238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF49745D Expired DE356402C (en) | Spectral apparatus with fixed deflection and automatically adjustable lenses |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE356402C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3521960A (en) * | 1964-01-20 | 1970-07-28 | Harry S Newcomer | Monochromator |
-
0
- DE DEF49745D patent/DE356402C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3521960A (en) * | 1964-01-20 | 1970-07-28 | Harry S Newcomer | Monochromator |
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