DAVIDSON OPTRONICS Model D-311 Macroplan Interferometer

MACROPLAN INTERFEROMETER -- D-311

Laser Beam Warning The Macroplan Interferometer D-311 is an optical instrument for measuring flatness of small reflective surfaces where 2X magnification is advantageous. Non-technical personnel can make accurate measurements on reflective surfaces as small) as 0.060 inch diameter.

With this instrument there is no physical contact between the master reference and the surface to be measured thus eliminating the, use of costly optical flats that must be replaced when worn.

Features:
- No vibration-isolation table required in most cases
- 2X magnification over 1½ inch working aperture
- Measures flatness to 0.000 001 inch on <0.060 inch diameter surfaces
- Costly optical flats eliminated
- Operation simplicity cut set-up time
- No physical contact between master reference and selected surface
- Certification of accuracy traceable to National Institute of Standards and Technology

For more theory of operation, please refer to the Principles of Interferometry Application Note.

Detailed Specifications:

Working Aperture		1½ inch
Accuracy		1/10 Fringe (1/20 Wave)
Light Source		Helium Neon Laser wavelength 6328Å
Power Requirements		115 volts, 60 Hz (220 volts, 50 Hz Available)
Material	Base	Cast Iron
	Housing, column and work table	Cast Aluminum
	Master Reference Flat:	Fused Quartz
Work Table		7 inch x 7½ inch
Vertical Adjustment		5 inch
Overall Dimensions	Base	14 inch x 12 inch
	Height	23½ inch
Finish		Ivory Enamel
Weight		85 pounds
Shipping Weight		120 pounds

Optional Accessories:
- P/N 104-0150-311 Fringe Analysis System eliminates any human error in evaluation of your parts
- P/N 105-2761-311 Video Camera & Monitor with integral camera power supply. With this option readings become very easy even for unskilled personnel. Repeat readings are more accurate and faster. The camera eliminates any errors from parallax and greatly reduces eye fatigue. This option is easily added to existing Model D-271's.
- P/N 105-2703 1 inch Retro-Reflecting Corner Cube
- Model D-190 Fringe Splitter
- P/N 625-0011 Contrast Coated Divider Plate for viewing mirrors
- Model D-311-103L with Swing-away Polaroid Camera

Davidson Optronics, Inc.
Phone: (626) 962-5181
Fax: (626) 962-5188
E-mail: sales@davidsonoptronics.com