# Part name: Carl Zeiss Jena Jenalumar / Jenavert microscope EPI reflected light lamp intermediate holder # Original page URL: https://www.microscopeparts.eu/part/carl-zeiss-jena-jenalumar-jenavert-microscope-epi-reflected-light-lamp-intermediate-holder-99680 # Part manufacturer: Carl Zeiss Jena # Full manufacturer name: VEB Carl Zeiss Jena DDR (former East Germany) # Other names of this manufacturer: - ausJena - aus Jena 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: Housings and its parts # Description and specifications: This is a metal component located between the EPI reflected-light illuminator and the upper horizontal arm of a Carl Zeiss Jena Jenalumar or Jenavert microscope. It is not an illuminator holder in the literal sense. The illuminator is secured with screws to the sides of the microscope's vertical arm. Instead, the central circular opening in this component is designed to receive and accurately position the cylindrical light-output section of the illuminator (lamphouse). Microscopes designed for reflected-light operation (either exclusively or in addition to transmitted light), such as the Carl Zeiss Jena Jenalumar, Jenavert and Jenapol-U, have a different upper horizontal microscope arm from models intended exclusively for transmitted light, such as the Carl Zeiss Jena Jenaval. The reflected-light arm includes a slot for filter sliders, a slot for an aperture slider and, of course, an angled mirror. Interestingly, this component is also present in Carl Zeiss Jena Jenaval microscopes, even though the standard version of this model is not equipped with an EPI reflected-light illuminator. Since it is not used there, it is normally covered by the rear sheet-metal cover of the microscope arm. This is exactly why the rear cover of the Carl Zeiss Jena Jenalumar microscope is shorter than that of the Jenaval model—it does not have to cover this component (see item no. 99679 in this database). This component fits the following microscope models: - Carl Zeiss Jena Jenalumar - Carl Zeiss Jena Jenaval - Carl Zeiss Jena Jenavert - Carl Zeiss Jena Jenapol - in the Carl Zeiss Jena Jenaval microscope this component is hidden behind the rear sheet-metal cover and is not used - in the Carl Zeiss Jena Jenalumar 50 this component receives the small 50W HBO fluorescence illuminator - in the Carl Zeiss Jena Jenalumar 250 with the large integrated lamphouse, this component receives the light-output section of the 250W HBO fluorescence illuminator - in the Carl Zeiss Jena Jenavert this component receives the 50W/100W halogen illuminator - Carl Zeiss Jena Jenapol microscopes may be equipped with various EPI reflected-light illuminators Cast or injection-moulded ZnAl components manufactured by Carl Zeiss Jena carry identification numbers that allow them to be identified. This component bears the number 2650 (full marking: Si10 2650). # Examples of use - because this component is made from a brittle ZnAl casting, it may chip or fracture if the EPI reflected-light illuminator is subjected to a mechanical impact # Removed from microscope: Carl Zeiss Jena Jenalumar # Also compatible with the following microscopes: - Carl Zeiss Jena Jenalumar - Carl Zeiss Jena Jenaval - Carl Zeiss Jena Jenavert - Carl Zeiss Jena Jenapol # Names, descriptions, terms, and search contexts under which this part is searched. - Carl Zeiss Jena Jenalumar microscope repair parts - Carl Zeiss Jena Jenavert und Jenalumar Auflicht EPI Lampenfassung - Carl Zeiss Jena Jenapol und Jenaval Auflicht Lampenhaus-Aufnahme - Carl Zeiss Jena buy spare parts # Related URLs: - Markdown po polsku: https://www.serwismikroskopowy.pl/part/99680.md - Markdown auf Deutsch: https://www.mikroskopteile.de/part/99680.md - Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99680-carl-zeiss-jena-jenalumar-jenavert-microscope-epi-reflected-light-lamp-intermediate-holder - Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99680.media.md - Representative photo: https://www.microscopeparts.eu/photo/carl-zeiss-jena-jenalumar-jenavert-microscope-epi-reflected-light-lamp-intermediate-holder-99680-2 - Other parts from category Housings and its parts: https://www.microscopeparts.eu/housings-and-its-parts - More Housings and its parts removed from microscope Carl Zeiss Jena Jenalumar: https://www.microscopeparts.eu/housings-and-its-parts/from/carl-zeiss-jena/jenalumar - More Housings and its parts compatible with microscope Carl Zeiss Jena Jenalumar: https://www.microscopeparts.eu/housings-and-its-parts/for/carl-zeiss-jena/jenalumar - More Housings and its parts removed from microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/housings-and-its-parts/from/carl-zeiss-jena - More Housings and its parts compatible with microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/housings-and-its-parts/for/carl-zeiss-jena # 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: 2026-08-04