Illuminator Lamphouses for Olympus BH2 Microscopes
LS20H Lamphouse
LS20H 20W Halogen Lamphouse
The LS20H 20W halogen lamphouse was used on BHT/BHTP/BHTU scopes and on the Ill-B and Ill-K stereo illumination bases. There were two versions of the LS20H manufactured. The original version (5-LB402) did not contain a lamp reflector. As Olympus began losing sales to Nikon, who were supplying some of their newer scopes with 30W halogen lighting, a concave reflector was added to the LS20H as a quick-and-dirty way to remain completive with these 30W scopes without completely redesigning the BHT/BHTU electronics. The version with the reflector (5S-119) seems to provide about 25% more usable light than the early 5-LB402 version. The LS20H lamphouse utilizes a 6V/20W ESB halogen lamp (8-C405). Suitable replacement lamps include the Osram 64250-HLX and the Philips 7388.
BHS-LSH Lamphouse
BHS-LSH 100W Halogen Lamphouse
The BHS-LSH 100W halogen lamphouse was used on the BHS/BHSU/BHSP scopes. The BHS-LSH lamphouse utilizes a 12V/100W halogen lamp (8-C406). Suitable replacement lamps include the Philips 7724.