The ASB-W-020 is a complete light source assembly with a tungsten-halogen lamp that emits in the 300 to 2500 nanometer (nm) wavelength region. It has been designed to transfer the maximum possible illumination to a variety of fibers.

The tungsten-halogen lamp of the ASB-W-020 is a near blackbody source of light with a built-in fused silica lens that focuses the light to the fiber. Figure 1 shows blackbody spectral distributions at various color temperatures in Kelvin (K). The ASB-W-020 spectral distributions resemble those of Figure 1 out to about 2500nm, beyond which the transmission of the fused silica lens limits the output.

In addition to the 20 Watt tungsten-halogen lamp (SP # ASB-W-020B), the ASB-W-020 features a lamp housing and a current regulator to assure a stable output. The housing contains an adjustable lamp mount. A variety of flanges allow the mounting of different fiber terminations, from a single fiber to bundles. The 20 Watt tungsten-halogen lamp used in the ASB-W-020 has a nominal color temperature of 3100 K and the regulated power input assures an average life of 2000 hours. The power supply provided with the ASB-W-020 is a wall plug-in type. 
 

•  Features

• Offers excellent color temperature stability
• Provides illumination for applications through optical fiber
• Focus adjustable light source SMA and fiber bundle adapter
• Features built-in current regulation

• Specifications

  Model	ASB-W-020
  Lamp	Tungsten-Halogen (TH)
  Power	Wall transformer: 120 VAC: 50 / 60Hz to 24VAC @2.0 amps 220VAC version available
  Current Regulation	Built-in ±0.4%
  Color Temperature	3,100°K
  Bulb Life	2,000 hrs. avg. (nominal)
  Spectral Distribution	Near blackbody
  Housing	Aluminum Force air cooled Limited focus adjustment
  Connector	SMA Fiber connector Type 905
  Dimensions	3.8L x 2.3H x 2.1W inches 9.8L x 5.9H x 5.7W cm
  Weight	11 oz 0.3 kg
  Options	Spare Lamp: ASB-W-020B Mounting flange for 10mm fiber bundle Optical bench mounts
  Warranty	1 year

• Replacement Bulb

•  Options & Parts