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Photos	PartIndex	Short name	Part name	Description	Number of pieces	Price	Category	Manufacturer	It comes from	Compatible with	Why do you need this?	Added ↑
904 - Thumbnail photo showing this microscope part. Carl Zeiss Jena Jenamed / Jenaval microscope lighting brightness adjustment knob - thumbnail [ 99458 ] video	SERMIK_ID number under which this microscope part is placed in the database. 99458	Carl Zeiss Jena Jenamed / Jenaval microscope lighting brightness adjustment knob	The name of this microscope part. Carl Zeiss Jena Jenamed / Jenaval microscope lighting brightness adjustment knob	Description of this part for the microscope. Light intensity adjustment knob for Carl Zeiss Jena CF-250 group microscopes. Compatible with the following Carl Zeiss Jena microscopes: - Jenamed (models ... Variant, Cytology, Hematology, Histology, Jenamed-2, Fluorescence) - Jenapol - Jenavert - Jenaval - Jenatech - Jenalumar Please note - this is only the adjustment knob, that is the knob used by the microscope user to make the illumination brighter or dimmer. It is not a potentiometer and therefore not a part of the electrical circuit. This knob features the characteristic white cap used on Carl Zeiss Jena microscopes, which is often lost during decades of microscope use. Mechanically, this knob is attached to the potentiometer. The fixing screw is covered by a white metal cap. In the last photo I indicate with an arrow exactly which element it is and where it is located in a Carl Zeiss Jena Jenamed microscope. In Jenaval and Jenalumar microscopes it is located on the microscope base. Names, descriptions, terms, and search contexts under which this part is searched. Carl Zeiss Jena Jenamed microscope repair parts Carl Zeiss Jena Jenamed and Jenaval microscope light intensity adjustment knob Carl Zeiss Jena Jenavert and Jenalumar illumination brightness control-knob Carl Zeiss Jena Jenaval und Jenalumar Mikroskop Drehknopf zur Regelung der Beleuchtungsintensität Carl Zeiss Jena Jenatech und Jenamed Mikroskop Lampen-Verstellungs-Knopf Carl Zeiss Jena buy spare parts	The number of pieces of this microscope part that we have to offer. 2	Price in EURO for 1 piece of this microscope part. Price is negotiable. 29 €	Name of the category to which this microscope part is classified. Service and spare parts	Abbreviated and full name of the manufacturer of this microscope part. Carl Zeiss Jena VEB Carl Zeiss Jena DDR (former East Germany)	Where has this microscope part been operating so far? From what microscope or larger microscope assembly was it removed? Model name of the equipment in which this microscopic part previously operated. Jenamed Abbreviated name of the manufacturer of the equipment in which this microscopic part previously operated. (Carl Zeiss Jena) Here it is written whether this part was removed from a microscope or from a larger microscope part. microscope	List of microscope models this part is compatible with. Jenamed Jenalab Jenaval Jenalumar Stereomikroskop Stativ XII Jenavert Jenapol	A list of potential uses for this part and when it might be needed. as a service element in the form of replacing the complete assembly if exactly this element or one of its component parts is damaged in the repaired microscope	2026-05-29 10:10:06
1127 - Thumbnail photo showing this microscope part. Carl Zeiss Jena Jenaval / Jenalumar microscope transmitted light path tube with frosted filter and collimating lens - thumbnail [ 99691 ]	SERMIK_ID number under which this microscope part is placed in the database. 99691	Carl Zeiss Jena Jenaval / Jenalumar microscope transmitted light path tube with frosted filter and collimating lens	The name of this microscope part. Carl Zeiss Jena Jenaval / Jenalumar microscope transmitted light path tube with frosted filter and collimating lens	Description of this part for the microscope. Transmitted-light path assembly with a frosted filter for Carl Zeiss Jena Jenaval, Jenalumar and similar microscopes. Compatible with the following Carl Zeiss ... Jena microscope models: - Carl Zeiss Jena Jenaval - Carl Zeiss Jena Jenalumar - Carl Zeiss Jena Jenapol - can also be installed in a Carl Zeiss Jena Jenavert microscope to add transmitted-light capability This component is located inside the microscope base. It receives the light beam from the illuminator, homogenises it (by diffusing the image of the lamp filament using a frosted filter acting as a diffuser) and then properly collimates it using a collimating lens. The prepared light beam then passes through another lens before reaching the right-angle mirror (sold as a separate component). This part is well known on the secondary market among hobbyists and engineers building their own DIY optical projects, where it is frequently reused. Interestingly, microscope versions intended exclusively for reflected-light operation (for example, the basic versions of the Carl Zeiss Jena Jenavert) do not contain this component because they do not have a transmitted-light optical path. However, both the microscope arm and the microscope base are identical to those used in transmitted-light models. This makes it possible to upgrade such an EPI microscope for transmitted-light operation by installing the complete lower transmitted-light optical path. The component offered here is one of the parts required for this conversion. In the last photograph, an arrow indicates where this component is located inside the microscope, making it easy to identify. Names, descriptions, terms, and search contexts under which this part is searched. Carl Zeiss Jena Jenaval microscope repair parts Carl Zeiss Jena Jenaval / Jenalumar Mikroskop Mattfilter Carl Zeiss Jena Jenapol microscope frosted filter Carl Zeiss Jena Jenavert Mikroskop Lichtkollimator-Linse Jenaval Lichttubus Carl Zeiss Jena Jenavert Mikroskop Durchlicht Carl Zeiss Jena buy spare parts	The number of pieces of this microscope part that we have to offer. 1	Price in EURO for 1 piece of this microscope part. Price is negotiable. 39 €	Name of the category to which this microscope part is classified. Service and spare parts	Abbreviated and full name of the manufacturer of this microscope part. Carl Zeiss Jena VEB Carl Zeiss Jena DDR (former East Germany)	Where has this microscope part been operating so far? From what microscope or larger microscope assembly was it removed? Model name of the equipment in which this microscopic part previously operated. Jenaval Abbreviated name of the manufacturer of the equipment in which this microscopic part previously operated. (Carl Zeiss Jena) Here it is written whether this part was removed from a microscope or from a larger microscope part. microscope	List of microscope models this part is compatible with. Jenaval Jenalumar Jenavert Jenapol	A list of potential uses for this part and when it might be needed. as a service element for whole-module replacement if you need such a collimator with a frosted diffuser for your own DIY project	2026-08-04 21:18:17

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Names, descriptions, terms, and search contexts under which this part is searched.

Names, descriptions, terms, and search contexts under which this part is searched.