Diffraction Grating
Order Code: 20214118.13
Category: General Lab Equipment III
Intermediate Spectrometer Specification: Scale: The 150mm diameter circle is fixed, and the table and telescope movements are completely independent of each other. Both movements can be read to 30 seconds of arc using double-ended venires; B...
SPECIFICATION
Intermediate Spectrometer
Specification:
- Scale: The 150mm diameter circle is fixed, and the table and telescope movements are completely independent of each other. Both movements can be read to 30 seconds of arc using double-ended venires; Both rotations have fine adjustment screws, and the release of a clamping screw enables coarse adjustment to be ridge by hand.
- Collimator: Mounted on a fixed pillar &fitted with 178 mm focus achromatic objective, 32 mm clear aperture. A unilaterally adjustable slit, 6mm long is also fitted.
- Telescope: Mounted on a moveable pillar and fitted with 178mm focus achromatic objective, 32 mm clear aperture. Also fitted is an xl 15 Ramsden eyepiece and a glass cross-line graticule. Both the telescope and collimator have rack and pinion focusing.
- Prism Table: The table is marked with lines to assist in placing the prism concerning the table levelling screws, and has interchangeable clamping units for the prism and a diffraction grating.
Standard accessories supplied:
a) 1 dense flint glass prism
b) 1 prism clamp
c) 1 diffraction grating holder
d) 1 watchmaker's eyeglass
e) 1 Tommy bar for adjusting optical axes
f) 1 polished hardwood case
g) 177mm diameter circle
h) Allows readings to 30 seconds of arc.
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