Spectrometer, Standard/Advanced

Description

• Scale: 150-Mm dia. circle with protective plastic shield fixed to the telescope movement, and the table is attached to the double-ended vernier, which reads 30 seconds of the arc. Both telescope and table rotations have fine adjustment screws, and the release of a clamping screw enables adjustments of both movements to be made by hand.
• Collimator: Mounted on a fixed pillar with axis adjustment. The objective lens has 150Mm F.L., an aperture of 21Mm, and is carried in a spiral focusing system. Unilaterally adjustable slit6Mmilliliterong.
• Telescope: Mounted on a moveable pillar and fitted with 178-Mm focus, 32 Mms achromatic objective with 28-Mm clear aperture. Also fitted is a 10x Ramsden eyepiece and a Glasscross line graticule. Both the telescope and the collimator have rack and pinion focusing.
• Prism Table: The table is provided with three leveling screws and has lined marks to assist placement of the prism.
• Standard Accessories Supplied: prism clamp for prisms up to 40Mm high, diffraction grating holder, aperture,
  screwdriver, to Mm bar for axis adjustment.