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Polarizačný mikroskop MAGUS Pol 850

Polarizačný mikroskop MAGUS Pol 850 je skvelý na pozorovanie vzoriek v polarizovanom a prirodzenom svetle. V prechádzajúcom svetle sa dajú skúmať geologické vzorky aj anizotropné biologické a polymérne vzorky v tenkých rezoch. V odrazenom svetle zasa môžete skúmať leštené rezy s jednou leštenou stranou. Hrúbka leštených rezov je ľubovoľná, zvyčajne to je 5–10 mm. S mikroskopom môžete študovať aj nepriehľadné preparáty s hrúbkou až 15 mm. Trinokulárny mikroskop využíva na vytvorenie obrazu dvojlom anizotropnej vzorky. Rovinne polarizované svetlo sa pri prechode anizotropným preparátom delí na dva lúče a zároveň mení rovinu polarizácie. Analyzátor privádza kmitanie lúčov do rovnakej roviny a osi, čím dochádza k deštruktívnej a konštruktívnej interferencii medzi oboma vlnoplochami. Vysoko kontrastný a jasný obraz mení farbu pri otáčaní pracovným stolíkom. Disponuje objektívmi bez vnútorného pnutia. V medziľahlom tubuse sa nachádza analyzátor a Bertrandova šošovka, ktorá má slot pre kompenzátory. Mikroskop oceníte v oblastiach kryštalografie, petrografie, mineralógie, súdnom lekárstve, medicíne a iných vedných odboroch.

The MAGUS Pol 850 polarizing microscope is great for observing samples in polarized and natural light. In transmitted light, geological samples and anisotropic biological and polymer samples can be examined in thin sections. In reflected light, you can examine polished sections with one polished side. The thickness of polished sections is arbitrary, usually 5–10 mm. You can also study opaque preparations with a thickness of up to 15 mm with the microscope. The trinocular microscope uses the birefringence of an anisotropic sample to create an image. Plane-polarized light is split into two beams when passing through an anisotropic preparation and at the same time changes the plane of polarization. The analyzer brings the oscillations of the beams to the same plane and axis, which results in destructive and constructive interference between the two wavefronts. The high-contrast and bright image changes color when the worktable is rotated. It has lenses without internal tension. The intermediate tube houses the analyzer and Bertrand lens, which has a slot for compensators. The microscope will be appreciated in the fields of crystallography, petrography, mineralogy, forensics, medicine and other scientific fields.

Hlavica polarizačného mikroskopu

The microscope has a trinocular head with planar achromatic objectives with infinity correction. The trinocular tube contains devices designed for digital image capture. Thanks to the eyepiece/camera light path selector knob, you can direct the light beam either into the eyepiece tubes or into the digital camera. You can adjust the diopters on the left tube. You can place up to five objectives in the revolving nosepiece holder. After placing the 4 objectives that you will find in the package (PL 5x/0.12 WD 26.1 mm, PL 10x/0.25 WD 5.0 ​​mm, PL 40x/0.6 (spring-loaded) WD 3.98 mm, PL 60x/0.7 (spring-loaded) WD 2.03 mm), you have one slot free. The free slot is used to center the light source. An additional objective can be mounted in the free slot to achieve higher magnification. The turret objective carrier is designed to face away from the observer, which frees up space in front of the stage, so you can see the objective inserted into the optical path. The turret objective carrier slots are centered to align the optical axis of the objective and the microscope.

Objektívy trinokulárneho mikroskopu

Mechanizmus zaostrovania a pracovný stolík

Trinocular microscope objectives

Plane achromatic objectives with infinity correction are specially designed for observation in polarized light. The optics without internal strain ensure that the birefringence comes from the specimen under examination, and not from the optical elements. The objectives are suitable for studying samples without the need for coverslips.

Focusing mechanism and work stage

Coaxial coarse and fine adjustment knobs are located at the bottom of the stand on both sides of the microscope. This allows you to comfortably rest your hands on the table and adopt a relaxed position while working. Focus adjustment is simple and smooth. The design of the focusing mechanism allows you to quickly adjust the microscope when changing specimens. For this purpose, coarse focus locking knobs are located on the right side. The stiffness of the coarse focus can be adjusted by turning the ring, which can be found on the left side. The stage can be rotated 360°, allowing you to observe the color change of the sample when the polarizer and analyzer are in a crossed orientation. The scale has a graduation of the rotation angle. With the vernier scale, your measurements will be accurate to 0.1°. The stage can be centered using two screws, as the analysis of an anisotropic object in polarized light requires precise alignment of the stage rotation axis with the optical axis of the microscope.

Zdroj svetla osvetlenia

Osvetlenie odrazeným svetlom

Osvetlenie prechádzajúcim svetlom

Köhlerovo osvetlenie v odrazenom a prechádzajúcom svetle

Skúmanie vzoriek v polarizovanom svetle

Transmitted light illumination

Köhler illumination with adjustable field diaphragm. A centered and height-adjustable Abbe condenser is also available, with an adjustable aperture diaphragm and a rotating auxiliary lens. NA = 1.25. The polarizer can be rotated 0–360°, with four rotation angles marked, namely 0°, 90°, 180°, 270°. The vernier scale on the analyzer ensures precise angle measurement.

Köhler illumination in reflected and transmitted light

Adjusting Köhler illumination will significantly improve the image quality of the specimens. This illumination allows for maximum resolution on each objective and ensures uniform illumination of the field of view without darkening at the edges. The examined specimen is perfectly focused, image artifacts are eliminated.

Examining samples in polarized light

The intermediate tube contains the analyzer and Bertrand lens and has a slot for compensators. The analyzer is inserted into the light path to allow objects to be observed in polarized light. When the polarizer and analyzer are rotated, the polarization angle changes. You can achieve a mutually perpendicular position by setting both filters to the “0” position. When the stand of the MAGUS Pol 850 polarizing microscope is rotated, the light is reflected differently from the sample surface depending on the polarization angle. The Bertrand lens is designed for conoscopic observation. Compensators are suitable for increasing the contrast of preparations with weak birefringence.

Príslušenstvo k zakúpeniu

Vlastnosti:

✓ Štúdium priehľadných a nepriehľadných anizotropných vzoriek v polarizovanom a prirodzenom svetle
✓ Výkonný 30 W halogénový zdroj prechádzajúceho a odrazeného svetla, ktorý poskytuje jasné prirodzené svetlo
✓ Bertrandova šošovka pre konoskopiu a ortoskopiu
✓ Kompenzátory a Köhlerovo osvetlenie v prechádzajúcom a odrazenom svetle
✓ Trinokulárna hlava s trinokulárnym tubusom na upevnenie digitálneho fotoaparátu
✓ Rozdelenie lúča 100:0 a 0:100
✓ Rovinné achromatické objektívy bez vnútorného pnutia eliminujú falošné optické efekty
✓ Pohodlné vyrovnanie slotov revolverového nosiča objektívov a pracovného stolíka
✓ Otočný kruhový pracovný stolík s noniovou stupnicou na presné meranie uhlov
✓ Široký sortiment voliteľného príslušenstva

Obsah balenia:

✓ Základňa s napájacím vstupom
✓ Zdroj prechádzajúceho svetla a kondenzor
✓ Zaostrovací mechanizmus
✓ Pracovný stolík a revolverový nosič objektívov
✓ Osvetľovacia sústava pre pozorovanie v odrazenom svetle s krytom
✓ Trinokulárna hlavica
✓ Medziľahlý tubus s Bertrandovou šošovkou a analyzátorom a slotom pre kompenzátor
✓ Rovinný achromatický objektív s korekciou na nekonečno: PL 5x/0,12 WD 26,1 mm
✓ Rovinný achromatický objektív s korekciou na nekonečno: PL 10x/0,25 WD 5,0 mm
✓ Rovinný achromatický objektív s korekciou na nekonečno: PL 40x/0,6 (odpružený) WD 3,98 mm
✓ Rovinný achromatický objektív s korekciou na nekonečno: PL 60x/0,7 (odpružený) WD 2,03 mm
✓ Okulár 10x/20 mm (2 ks)
✓ 10x/20 mm okulár so stupnicou. Hodnota na stupnici, mm 0,1 mm
✓ Adaptér typu C-mount 1x
✓ Šesťhranný kľúč
✓ Napájací kábel
✓ Protiprachová krytka
✓ Užívateľská príručka a záručný list

-Features:
✓ Study of transparent and opaque anisotropic samples in polarized and natural light
✓ Powerful 30 W halogen transmitted and reflected light source that provides bright natural light
✓ Bertrand lens for conoscopy and orthoscopy
✓ Compensators and Köhler illumination in transmitted and reflected light
✓ Trinocular head with trinocular tube for mounting a digital camera
✓ 100:0 and 0:100 beam splitting
✓ Planar achromatic objectives without internal tension eliminate spurious optical effects
✓ Convenient alignment of the turret and work stage slots
✓ Rotating circular work stage with vernier scale for precise angle measurement
✓ Wide range of optional accessories

Package contents:

✓ Base with power input
✓ Transmitted light source and condenser
✓ Focusing mechanism
✓ Working stage and turret
✓ Illumination system for reflected light observation with cover
✓ Trinocular head
✓ Intermediate tube with Bertrand lens and analyzer and slot for compensator
✓ Plan achromatic objective with infinity correction: PL 5x/0.12 WD 26.1 mm
✓ Plan achromatic objective with infinity correction: PL 10x/0.25 WD 5.0 mm
✓ Plan achromatic objective with infinity correction: PL 40x/0.6 (spring-loaded) WD 3.98 mm
✓ Plan achromatic objective with infinity correction: PL 60x/0.7 (spring-loaded) WD 2.03 mm
✓ Eyepiece 10x/20 mm (2 pcs)
✓ 10x/20 mm eyepiece with scale. Scale value, mm 0.1 mm
✓ C-mount adapter 1x
✓ Hex key
✓ Power cable
✓ Dust cap

Možnosť zakúpenia:

✓ 16x/11 mm okulár (2 ks)
✓ 20x/11 mm okulár (2 ks)
✓ Rovinný achromatický objektív s korekciou na nekonečno: PL 2,5x/0,07 WD 11 mm
✓ Rovinný achromatický objektív s korekciou na nekonečno: PL 50x/0,7 (odpružený) WD 3,69 mm
✓ Rovinný achromatický objektív s korekciou na nekonečno: PL 80x/0,8 (odpružený) WD 1,25 mm
✓ Rovinný achromatický objektív s korekciou na nekonečno: PL 100x/0,85 (odpružený) WD 0,4 mm
✓ Mechanický pracovný stolík
✓ Digitálny fotoaparát
✓ Kalibračné sklíčko