# Part name:
Zeiss Photomicroscope / Universal microscope light collector with matte filter | holder with frosted ground glass for 6V 15W illuminator lamp

# Original page URL:
https://www.microscopeparts.eu/part/zeiss-photomicroscope-universal-microscope-light-collector-with-matte-filter-holder-with-frosted-ground-glass-for-6v-99637

# Part manufacturer:
Zeiss

# Full manufacturer name:
Carl Zeiss West Germany

# Other names of this manufacturer:
- Carl Zeiss West
- Carl Zeiss West Germany
- Opton
These are names commonly used to refer to this manufacturer of microscopes and microscope parts, even if they are not official. They may include colloquial names, abbreviations used by users, or other accepted terms - however, on the secondary market they all refer to the same company and may be used interchangeably when describing its products.

# Belongs to category:
Illuminators

# Description and specifications:
Illuminator holder with a light-collimating lens and frosted ground glass for Carl Zeiss Standard microscopes.

This microscope component is located inside the microscope base. It transfers the light beam from the illuminator, homogenises it (the image of the filament is diffused by means of a diffuser), and then properly collimates it using a collimating lens. The prepared light beam is then directed to the deflecting mirror (this is a separate microscope component).

This is part of the transmitted-light optical path. The diffuser (frosted ground glass) and the collimating lens are housed inside a metal enclosure that serves as a heat sink for the halogen lamp. The complete assembly forms the illuminator housing.

This particular collector with frosted ground glass was removed from a Carl Zeiss Photomicroscope (also known as Zeiss PM / Zeiss Phomi).
It fits the following microscopes (this is not a complete list):
- Zeiss Photomicroscope (Zeiss PM / Phomi)
- Zeiss Photomicroscope II (Zeiss PM2 / Phomi II)
- Zeiss Photomicroscope III RS (Zeiss PM3 RS / Phomi III)
- Zeiss Universal
- Zeiss Ultraphot
- most likely also Zeiss Standard 16 / 18 / WL / WL 89 / GFL microscopes

VERY IMPORTANT: This component is intended for the 6V 15W incandescent illuminator. Zeiss microscopes may be equipped either with a 6V 15W incandescent illuminator (a tubular illuminator inserted into the microscope base) or with an external halogen Lampenhaus mounted to the rear of the microscope base. Microscope versions equipped with a halogen illuminator use a different illuminator holder than the one presented here.

Other names used for this component:
- illuminator holder with frosted filter
- illuminator tube
- illuminator holder with frosted ground glass
- sometimes the foreign-language term "Lampenhaus" is also used, although it is not a precise name for this component

The last photographs in the gallery show the base of a Zeiss Photomicroscope III RS. Arrows indicate exactly which component is being offered and where it is located inside the microscope base, making it possible to identify this component unambiguously.

# Examples of use
- as a service part, when the existing, broken Mikroskopelement needs to be replaced
- if you are deliberately modifying the microscope illumination and need this element

# Removed from microscope:
Zeiss Photomicroscope

# Also compatible with the following microscopes:
- Zeiss Photomicroscope II
- Zeiss Photomicroscope III RS
- Zeiss Universal
- Zeiss Photomicroscope
- Zeiss Ultraphot

# Names, descriptions, terms, and search contexts under which this part is searched.
- Zeiss Photomicroscope microscope repair parts
- Zeiss Phomi / Universal Mikroskop 6V 15W Lampe Beleuchter Lampenhalter
- Zeiss Photomicroscope Mattscheibe
- Zeiss photomicroscope light collector
- Zeiss Phomi / Universal ground glass
- Zeiss Photomicroscope 6V 15W lamp holder
- Zeiss buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99637.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99637.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99637-zeiss-photomicroscope-universal-microscope-light-collector-with-matte-filter-holder-with-frosted-ground-glass-for-6v
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99637.media.md
- Representative photo: https://www.microscopeparts.eu/photo/zeiss-photomicroscope-universal-microscope-light-collector-with-matte-filter-holder-with-frosted-ground-glass-for-6v-99637-2
- Representative video: https://www.microscopeparts.eu/play/99637-1
- Other parts from category Illuminators: https://www.microscopeparts.eu/illuminators
- More Illuminators removed from microscope Zeiss Photomicroscope: https://www.microscopeparts.eu/illuminators/from/zeiss/photomicroscope
- More Illuminators compatible with microscope Zeiss Photomicroscope: https://www.microscopeparts.eu/illuminators/for/zeiss/photomicroscope
- More Illuminators removed from microscopes Zeiss: https://www.microscopeparts.eu/illuminators/from/zeiss
- More Illuminators compatible with microscopes Zeiss: https://www.microscopeparts.eu/illuminators/for/zeiss

# 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: 2026-07-25