PASCO OS-9179 Diffraction Slit Sets User Manual

Diffraction slit sets, Pasco, Scientific

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Instruction Sheet for the PASCO
Models OS-9165 and OS-9179

$.50

012-01564C

10/91

10101 Foothills Blvd. • P. O. Box 619011 • Roseville, CA 95661 USA
Phone (916) 786-3800 • FAX (916) 786-8905 • TWX 910-383-2040

PASCO

scientific

Diffraction Slit Sets

The PASCO Model OS-9165 includes four slides:

Set 1: Four single slits.
Set 2: Four double slits.
Set 3: Four multiple slits.
Set 4: Aperture and diffraction patterns.

The PASCO Model OS-9179 includes two slides:

Set 1: Four single slits.
Set 2: Four double slits.

Electroformed Slits

Specifications:

Material: .005 mm electroformed nickel

Tolerances: +/- .005 mm

Slit Width and Spacing:

The label on the top of each slide lists four patterns: A,
B, C, and D. The slits are arranged in that order from
left to right on the slide. Figure 1 illustrates the relation-
ship between the label and the slit specifications.

Note: The 'SLIT SPACE' dimension is from center
to center of each slit

Example for Double Slit Slide:

Pattern 'A' (furthest on the left) consists of two slits,
each .04 mm wide and spaced .250 mm apart, center to
center.

Pattern 'B' (second from the left) consists of two slits,
each .04 mm wide and spaced .500 mm apart, center to
center.

In Pattern 'C' and 'D' the width of each slit is .08 mm, while
the center to center spacing is the same as for 'A' and 'B'.

A B C D

PATTERN

A

B

C

D

NO. SLITS

2

2

2

2

SLIT WIDTH

.04

.04

.08

.08

SLIT SPACE

.250

.500

.250

.500

FIGURE 1

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