Overview: The Nikon Autocollimators 6B-LED and 6D-LED are precision metrology instruments designed for measuring angular displacement with high accuracy. They feature 70 mm aperture lenses and double line reticles, providing readings to 0.5 seconds of arc. The 6B-LED model offers a bright viewfield, while the 6D-LED provides a dark viewfield.

Specifications: Both models have a telescope magnification of 38x and an objective focal length of 700 mm. They measure angular displacement over a range of 30 minutes of arc on both vertical and horizontal axes, with a minimum reading of 0.5 seconds of arc. The instruments can operate on two AA batteries or a 12V 5A AC adapter.

Features: The autocollimators are equipped with an LED illuminator, allowing use in environments without AC power. They can measure the radius of curvature for convex and concave surfaces by adjusting the objective correction ring. The 6B-LED is suitable for low-reflective surfaces, while the 6D-LED is ideal for high-contrast measurements.

Accessories: Available accessories include aluminum storage cases, LED illuminators, and various plane and polygon mirrors for enhanced measurement capabilities. Mirrors such as Plane Mirror B and D, and 12-sided and 8-sided Polygon Mirrors, are provided with wooden cases for protection.

Applications: The autocollimators are used for checking the accuracy of rotary tables, measuring the angle of workpieces, assessing parallelism and squareness of surfaces, and detecting deflection in elastic materials. They are versatile tools for precision measurement in various industrial applications.

Contact Information: Nikon provides contact details for their offices worldwide, including locations in Japan, the USA, Europe, China, Singapore, Malaysia, Korea, India, Canada, Italy, the UK, France, and Germany.