Interference fringes of Sodium D-lines
Spectrum of Sodium lamp
Features
Ground glass & diaphragm supplied
Output of 20 W
Housing, support base with post, and power supply included
Height of lamp adjustable with post/post holder
Introduction
Low Pressure Sodium Vapor Lamp emits light at 589 nm and 589.6 nm, useful for wavelength calibration or resolution regulation. When the lamp is turned on, it initially emits dim pink light to warm the Sodium metal; then it turns into the common bright orange color as the Sodium metal vaporizes. Generally, a low-pressure Sodium lamp requires a warm up period of about ten minutes before it reaches substantially full light output, and has to cool down before restart.
Specifications
| Description | Specifications |
| Power | 20 W |
| Operating Voltage | 20 VAC |
| Operating Current | 1 ~ 1.3 A |
| Base Type | E27 |
| Dimension of Bulb | 28 mm in OD, 155 mm in length |
| Dimension of Housing | 50 mm (dia), 195 mm in length |
| Dimension of Windows | 2 opposite windows: 30 mm (height) x 16 mm (width) |
| Range of Height Adjustment | 150 mm to 260 mm |
Part List
| Description | Qty |
| Sodium bulb | 1 |
| Housing with base and post | 1 |
| Power supply | 1 |
| Window barrier | 1 ground glass, and 1 metal plate with a pin hole |
| Power cord | 1 |
Interference fringes of Sodium D-lines
Spectrum of Sodium lamp
