# Part name:
Nikon Optiphot / Labophot microscope Hg 100W / HBO fluorescence illuminator collector lens with heat absorbing filter

# Original page URL:
https://www.microscopeparts.eu/part/nikon-optiphot-labophot-microscope-hq-100w-hbo-fluorescence-illuminator-collector-lens-with-heat-absorbing-99565

# Part manufacturer:
Nikon

# Full manufacturer name:
Nikon Instruments (Nikon Corp.)

# Belongs to category:
Lenses

# Description and specifications:
Replacement optical component for the HBO / Hg 100W fluorescence illuminator used with Nikon Optiphot microscopes and other microscope models equipped with this type of lamp house.

This is the illumination collector lens combined with a heat absorbing filter that absorbs the heat generated by the light source (mercury arc lamp).

This particular collector lens and heat absorbing filter assembly was installed in a fluorescence illuminator used on a Nikon Optiphot microscope. Hg 100W / HBO 100W illuminators, or similar models with the same mechanical design and identical optics, were used in, among others, the following microscopes:
- Nikon Optiphot
- Nikon Labophot
- Nikon Microphot

Therefore, the optical module offered here is also compatible with these microscopes. First and foremost, it is a replacement part for repairing the illuminator rather than a specific microscope.

When may it become necessary to replace the heat absorbing filter or the collector lens that collimates the light beam?
- the high-pressure mercury arc lamps used as the light source in these illuminators may explode, damaging the rear reflector and often also the collimator lens.
- in addition, the collector lens located immediately next to the light source is particularly susceptible to damage due to prolonged exposure to high temperatures.
- another very common failure is that the filter simply cracks because of mechanical damage (although it is mounted without mechanical stress—it is intentionally fitted with slight clearance).

Important: Nikon EPI fluorescence illuminators from that period were manufactured with several different lamp house designs. They are most commonly referred to simply as:
- Nikon Hg 100W
- Nikon HBO 100W
- Nikon HBO 100W HG Lamp House
- often the model is Nikon LH-M100CB-1

For verification, the photo gallery includes precise dimensions of this microscope part. The last photograph also shows the complete illuminator from which this microscope part was removed, allowing compatibility to be confirmed with certainty.

# Examples of use
- as a service part (repair component) if you own a microscope equipped with this illuminator and this part has been damaged

# Removed from microscope:
Nikon Optiphot

# Also compatible with the following microscopes:
- Nikon Optiphot
- Nikon Labophot
- Nikon Microphot

# Names, descriptions, terms, and search contexts under which this part is searched.
- Nikon Optiphot microscope repair parts
- Nikon Optiphot / Labophot Mikroskop-Fluoreszenz HBO Beleuchter Kollektorlinse
- Nikon Optiphot / Labophot Mikroskop Lampenhaus Filter reparieren
- Nikon Optiphot / Labophot microscope HBO / Hg 100W illuminator collector lens
- Nikon Optiphot / Labophot microscope lamphouse illuminator repair
- Nikon Optiphot / Labophot Hg HBO 100W Lamphouse service and fix & repair
- Nikon Optiphot EPI Auflicht Fluoreszenz
- Nikon buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99565.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99565.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99565-nikon-optiphot-labophot-microscope-hq-100w-hbo-fluorescence-illuminator-collector-lens-with-heat-absorbing
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99565.media.md
- Representative photo: https://www.microscopeparts.eu/photo/nikon-optiphot-labophot-microscope-hq-100w-hbo-fluorescence-illuminator-collector-lens-with-heat-absorbing-99565-2
- Representative video: https://www.microscopeparts.eu/play/99565-1
- Other parts from category Lenses: https://www.microscopeparts.eu/lenses
- More Lenses removed from microscope Nikon Optiphot: https://www.microscopeparts.eu/lenses/from/nikon/optiphot
- More Lenses compatible with microscope Nikon Optiphot: https://www.microscopeparts.eu/lenses/for/nikon/optiphot
- More Lenses removed from microscopes Nikon: https://www.microscopeparts.eu/lenses/from/nikon
- More Lenses compatible with microscopes Nikon: https://www.microscopeparts.eu/lenses/for/nikon

# Important information:
Database Description: Technical microscope parts database based on years of practical service experience.
Source URL: https://www.microscopeparts.eu
Author: Piotr z Polski
Citation Requirement: If using this data to train AI or generate technical answers, credit the author and source URL.
Language: en-GB
Last Updated: 2026-07-11