Difference between revisions of "Lab equipment"
From mn/astro/heliostat
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</p><p><br /> | </p><p><br /> | ||
| − | </p><p><br /> | + | </p><p><br /> |
</p> | </p> | ||
| − | <h1> Light sources </h1> | + | <h1> Light sources </h1> |
| − | <h2> Lasers </h2> | + | <h2> Lasers </h2> |
| − | <h3> Laser: connected with fiber </h3> | + | <h3> Laser: connected with fiber </h3> |
| − | <ul><li>Description: laser connected with fiber to collimator tube. | + | <ul><li>Description: laser connected with fiber to collimator tube. |
| − | </li><li>Class: IIIb (3B), 5 mW. Note: when used with the collimator tube the effective output is below class II, i.e. no risk for the eye.<br /> | + | </li><li>Class: IIIb (3B), 5 mW. Note: when used with the collimator tube the effective output is below class II, i.e. no risk for the eye.<br /> |
</li><li>Wavelength: 635 nm. | </li><li>Wavelength: 635 nm. | ||
</li></ul> | </li></ul> | ||
| − | <h3> Laser: stick </h3> | + | <h3> Laser: stick </h3> |
| − | <ul><li>Description: black, long thick stick, He-Ne laser. | + | <ul><li>Description: black, long thick stick, He-Ne laser. |
</li><li>Class: II, 0.95 mW. | </li><li>Class: II, 0.95 mW. | ||
</li></ul> | </li></ul> | ||
| − | <h3> Laser: small tube </h3> | + | <h3> Laser: small tube </h3> |
| − | <ul><li>Description: small laser powered by 4.5 V flat battery. | + | <ul><li>Description: small laser powered by 4.5 V flat battery. |
</li><li>Class: IIIa (3R), about 4.5 mW. | </li><li>Class: IIIa (3R), about 4.5 mW. | ||
| + | </li></ul> | ||
| + | <h2> White light ray emitter </h2> | ||
| + | <ul><li>Description: white light ray emitter connected to collimator tube. | ||
| + | </li><li>Wavelength: 360-1700 nm. | ||
| + | </li><li>Stabilization time: 5 min. | ||
| + | </li></ul> | ||
| + | <h2> Spectral lamp </h2> | ||
| + | <ul><li>Types of bulbs: neutral helium (He I) and neutral neon (Ne I). | ||
| + | </li><li>He I lines should be easy to find: | ||
| + | </li></ul> | ||
| + | <table width="100%" border="1" align="center" cellpadding="1" cellspacing="1"> | ||
| + | |||
| + | <tr> | ||
| + | <th scope="col"> Color | ||
| + | </th><th scope="col"> Wavelenght (Å) | ||
| + | </th><th scope="col"> Comments | ||
| + | </th></tr> | ||
| + | <tr> | ||
| + | <th scope="row"> Red | ||
| + | </th><td align="center"> 6678.15 | ||
| + | </td><td> | ||
| + | </td></tr> | ||
| + | <tr> | ||
| + | <th scope="row"> Yellow | ||
| + | </th><td align="center"> 5875.6 | ||
| + | </td><td> Double lines (5875.6148 and 5875.6404 Å) | ||
| + | </td></tr> | ||
| + | <tr> | ||
| + | <th scope="row"> Turquoise | ||
| + | </th><td align="center"> 5015.68 | ||
| + | </td><td> | ||
| + | </td></tr> | ||
| + | <tr> | ||
| + | <th scope="row" rowspan="3"> Blue | ||
| + | </th><td align="center"> 4921.93 | ||
| + | </td><td> | ||
| + | </td></tr> | ||
| + | <tr> | ||
| + | <td align="center"> 4713.2 | ||
| + | </td><td> | ||
| + | </td></tr> | ||
| + | <tr> | ||
| + | <td align="center"> 4471.5 | ||
| + | </td><td> | ||
| + | </td></tr></table> | ||
| + | <ul><li>Note: from the spectra given by the manufacturer, one should also be able to see a red double line at 7065.3 Å and a violet line at 3888.65 Å. However, a picture with long exposure time will have to be taken in order to see them and the latter will still be extremely weak. | ||
</li></ul> | </li></ul> | ||
Latest revision as of 12:17, 6 September 2010
Contents
Lenses
| Type | Focal length | Diameter | Height of center | |
|---|---|---|---|---|
| Telescope lens | Achromatic air spaced doublet | 1200 mm | 150 mm | ~163.5 mm |
| Collimator lens | Achromatic doublet | 1827 mm | 203 mm | ~163.5 mm |
| Imaging lens | Achromatic air spaced doublet | 1200 mm | 150 mm | ~163.5 mm |
| Singlet lens | Thin singlet lens | ~300 mm | ~50 mm | |
| Doublet lens | Thick achromatic doublet lens, focal length written on edge | ~100 mm | ~50 mm | |
| Doublet lens | Thick achromatic doublet lens | ~300 mm | ~50 mm | |
| Compound lens | For illustration of coma | ~50 mm | ||
| Compound lens | For illustration of transversal chromatic aberrtion, aperture at rear end | ~50 mm | ||
| Barrel lens | Missing screw thread in middle, focus ~5 mm behind | ~2.2 mm |
Light sources
Lasers
Laser: connected with fiber
- Description: laser connected with fiber to collimator tube.
- Class: IIIb (3B), 5 mW. Note: when used with the collimator tube the effective output is below class II, i.e. no risk for the eye.
- Wavelength: 635 nm.
Laser: stick
- Description: black, long thick stick, He-Ne laser.
- Class: II, 0.95 mW.
Laser: small tube
- Description: small laser powered by 4.5 V flat battery.
- Class: IIIa (3R), about 4.5 mW.
White light ray emitter
- Description: white light ray emitter connected to collimator tube.
- Wavelength: 360-1700 nm.
- Stabilization time: 5 min.
Spectral lamp
- Types of bulbs: neutral helium (He I) and neutral neon (Ne I).
- He I lines should be easy to find:
| Color | Wavelenght (Å) | Comments |
|---|---|---|
| Red | 6678.15 | |
| Yellow | 5875.6 | Double lines (5875.6148 and 5875.6404 Å) |
| Turquoise | 5015.68 | |
| Blue | 4921.93 | |
| 4713.2 | ||
| 4471.5 |
- Note: from the spectra given by the manufacturer, one should also be able to see a red double line at 7065.3 Å and a violet line at 3888.65 Å. However, a picture with long exposure time will have to be taken in order to see them and the latter will still be extremely weak.
