2024BL Alignment Telescope

Bright line & bright field reticles, metric micrometers

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2024BL Bright Line Alignment Telescope

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Like most of our alignment telescopes, the 2024BL uses the design of the 2022 as its basic building block.  However, the 2024BL has metric micrometers as well as a right angle eyepiece and a two-reticle system consisting of a dark field, bright line reticle as well as a bright field, dark line reticle.  These features specifically enhance the unit's accuracy and ease of use when autocollimating.  The 2024BL does not include a  built-in auto-reflection target as many of our other alignment telescopes do.  An autocollimation illumination unit (our model 509) is included with the instrument.

See also similar instrument 2030 (with micrometers graduated in English units).

You can read more about our alignment telescopes on this website.

Specifications
Magnification:  Varies from 4x at zero focus to 46x at infinity.

Focusing range:  Zero to infinity.

Field of view:  37 minutes at infinity, 42 mm at zero focus.

Effective aperture:  42 mm.

Optics:  Fully coated optics used throughout.

Reticle:  All-purpose, double glass, dustproof; cross-pattern with single lines top and right, paired lines bottom and left.

Eyepiece:  Fully erect image; diopter scale. Right-angle eyepiece and complete projection accessories available.

Focusing knob:  Drum graduated to show focusing distance in meters. 		Optical Micrometer:
  • Built-in horizontal and vertical optical micrometers.
  • Displacement: ± 1.2 mm, direct reading to 0.02 mm.
  • Accuracy: ±0.005 mm over full range.
  • Scale graduations are red and black to indicate direction of displacement.
Telescope barrel:  Made of through hardened stabilized stainless steel.

Barrel diameter:  57.14492 mm (+0, -0.0076 mm) or 2.2498" (+0", -0.0003") Meets A.I.A. specifications.

Barrel length:  23.3 cm.

Overall length:  45.1 cm.

Weight:  Approx. 5.23 kg.

May be used with...
  • 187-S Coincidence Striding Level
  • 2230  Right Angle Eyepiece (discontinued)
  • 2240  Combination Auto-Collimation, Projection, Right Angle eyepiece
  • 3205  Cross Level
  • 3220  Coincidence Striding Level (discontinued)
  • 6202  Magnetic Back Mirror, 2 1/2"
  • 6204  Magnetic Back Mirror, 4"
  • Our alignment telescope bases
  • 508 Light source (discontinued)