16 INCH REFLECTIVE LENS BENCH -- D-278
The Model D-278, 16 Inch Reflective Lens Bench is an extremely stable, multi-purpose instrument for testing optical systems and lenses from the visual through the infrared.
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Detailed Specifications:
| Primary & Secondary Mirrors | Flatness | 1/20 fringe or better |
| Coating | Aluminum with protective overcoat per MIL-M-13508 | |
| Parabolic Primary Mirror | Diameter | 16 Inch (406 mm) |
| Thickness | 2.7 Inch (69 mm) | |
| Focal Length | 107 Inch (2.72 m) | |
| Secondary Mirror | Diameter | 18 Inch (457 mm) |
| Center Hole Diameter | 1½ Inch (38 mm) | |
| Collimated Beam | Aperture diameter 15½±½ Inch (381 - 406 mm).
Central obscuration does not exceed 1½ Inch (38 mm). Maximum deviation of collimated beam from parallelism over entire field of view is less than 2 arc seconds. |
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| Overall Dimension | Height | 66 Inch (1.68 m) |
| Width | 22 Inch (560 mm) | |
| Length | 186 Inch (4.72 m) | |
| Between Feet | 133 Inch (3.38 m) | |
| Rails | Length 108.0 Inch (2.74 m) flat and straight within 0.010 Inch (25 μm), each contains a flat and V-rail with approximately 6½ Inch (165 mm) between centers | |
| Large Carriage | Rack and pinion traversing mechanism with position locking knob.
Length: 30 Inch (762 mm) -- Width: 20 Inch (508 mm) |
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| Height of Centerline Collimated Beam | To Floor | 54 Inch (1.37 m) |
| To Rail | 22½ Inch (571 mm) | |
| To Top-Large and Small Carriages | 19 Inch (483 mm) | |
| To Top-Nodal Slide | 9.8 Inch (249 mm) | |
| Height Pin to Chopper Plate | 7½ Inch (190 mm) | |
| Lens Bench Weight | 2,400 pounds (1,090 kg) | |
| Shipping Weight | 4,700 pounds (2,130 kg) | |
The T-Bar is mounted in the optional cross slide - rotary table compound. The microscope is used for observing and testing lenses and related optics. The T-Bar is designed to provide a means of precisely positioning the test lens during testing.Davidson Optronics, Inc.
Phone: (626) 962-5181
Fax: (626) 962-5188
E-mail: sales@davidsonoptronics.com