Home page of the microscope service parts, repair and spare parts online catalog - Sermik-Oplatek Mikroskopservice Dresden f.n.n.Z

Description of this part for the microscope.

screws to attach to the arm. The slider has two places - one has a removable filter and the other is empty.

Description of this part for the microscope.

Description of this part for the microscope.

it fits the CN series or the STE-6 stereo microscope (I'll post here once I find out).

Modell: HAPRO

Update: I just tested it with a Hertel & Reuss CN-hf / CN-fl microscope. The illuminator fits perfectly, but the CN-hf / CN-fl doesn't have a mirror underneath (Umlenkspiegel), so you'll need to install one yourself and it will work perfectly (see last photos).

Description of this part for the microscope.

Lomo OI-35 Koehler illuminator with field diaphragm
- illuminator plug with Lomo 8V 20W BA15d bulb

Fits microscopes including:
- Lomo Biolam
- Lomo Biolam M
- and certainly many other models (e.g., Polam)

A small, non-Koehler illuminator for these microscopes is the Lomo OI-21, which is mounted on a base like the OI-35 (and therefore does not use a mirror). The Lomo OI-19 is an external illuminator that shines onto the mirror. The Lomo OI-35 uses the same filament bulb as these two, but now allows for Koehler standard lighting.

Koehler standard lighting allows for the best image quality when working with oil immersion or phase contrast.

The last photos are an example of use.

Description of this part for the microscope.

halogen bulb can be used
LED: YES - LED bulb can be used
Note: There is an ON/OFF switch on the cable

Here is some interesting information about light bulbs: https://baertierchen.de/wb_nov19.html

Description of this part for the microscope.

Zeiss IM 35 (IM-35, IM35) microscope is the Opton ICM 405 (ICM-405, ICM405).

Please note that exactly the same (!) illuminator is also used on the Zeiss Standard / Photomicroscope series microscopes. Please refer to the description of illuminator No. 99684 in this database. YES – these are exactly the same illuminators. However, that particular unit was removed from a Zeiss Photomicroscope II and therefore has its own separate description. You will also find additional photographs and an extended description there.

Description of this part for the microscope.

in design, no cable, and no power supply connection.

Note: This illuminator does not fit the black "SM" version.

Description of this part for the microscope.

collimating lens and a mirror that reflects light vertically upward.

When attached to the Amplival model, this accessory can convert it into a microscope with EPI illumination.

The last photo shows an excerpt from the user manual describing this accessory.

Description of this part for the microscope.

Modell: STELA

The unit offered here was used with a Carl Zeiss Stereomikroscope II microscope (as seen in the last photo).

It originally used an incandescent bulb, but over the years, someone replaced it with an LED and connected a transformer. It has a bracket that allows for mounting to virtually any microscope.

Description of this part for the microscope.

a CZJ Ergaval / Amplival microscope with a classic illuminator (6V 15W filament bulb) and simply replacing the bulb holder with the one offered here will create a halogen-illuminated microscope. No.
- the original holder of the "regular" bulb contains a lens that collimates the light beam
- the halogen bulb holder does not contain that lens
- Ergaval / Amplival microscopes designed for halogen illumination have an additional lens threaded into the base

Halogen illumination is (according to many experts) the best microscope illumination because it delivers strong light with a full spectrum, whereas LED often provides only a portion of the color spectrum.

Other used names:
- illuminator
- halogen lamp
- bulb holder
- lamp housing

Description of this part for the microscope.

Description of this part for the microscope.

an incandescent lamp illuminator. This lampholder is not required if you have a microscope with the original halogen illuminator - in that case, the collimator lens is a separate element mounted next to the field diaphragm.

Other used names:
- lamp holder
- lamp tube
- lamp support
- sometimes the German-language term "Lampenhaus" is used

Description of this part for the microscope.

illuminator housing with frosted filter
- illuminator tube
- illuminator holder with frosted filter
- sometimes the German-language term "Lampenhaus" is used

Notice - this is NOT a complete illuminator assembly. Please carefully examine the photos in the gallery; as an additional element (which is not included here), a separate silver component extending beyond the outline of the microscope base is screwed in to help support the illuminator with bulb. Here I offer and describe the part that is located inside the microscope base.

Description of this part for the microscope.

element is intended for the Carl Zeiss Jena Fluoval microscope. THIS IS NOT CERTAIN INFORMATION - I am unable to access the relevant documentation.

Other used names:
- lamp holder
- lamp tube
- lamp support
- sometimes the German-language term "Lampenhaus" is used

Description of this part for the microscope.

standards.

The device consists of:
- a slot for mounting the illuminator
- the iris diaphragm
- an angled mirror
- a place to insert 32 mm diameter filters

Note - the set does NOT include an illuminator or bulb, so there is no light source. This is only the "housing".

Description of this part for the microscope.

Jenalumar 50

Please note the following:
- both microscopes listed here use this illuminator for EPI fluorescence, i.e. reflected light. This is not transmitted-light fluorescence.
- this illuminator requires a Carl Zeiss Jena SH 50 power supply for operation
- the Carl Zeiss Jena Jenalumar microscope was produced in two variants - this illuminator fits the Jenalumar version with two small, separate illumination modules
- information can be found on the Internet claiming that this illuminator is suitable for Carl Zeiss Jena Jenavert microscopes. This is NOT correct.
- an HBO lamp is not the same as an XBO lamp.
- Jenamed microscopes other than the "Fluorescence" version have a differently mounted head and this illuminator CANNOT be installed on them.

Important - operating used, overheated HBO lamps, lamps with unknown operating time or from an uncertain source may result in explosion, damage to the illuminator, contamination of the room and a risk to the user's life and health. For this reason, this illuminator DOES NOT INCLUDE a light source (i.e. it does not include the HBO mercury burner).

Description of this part for the microscope.

transmitted light is inserted. Inside there is a lens that collimates the light beam. In the lower part of this element there are three filter holders and a shutter that allows complete cutoff of this light source.

The illumination block in the Carl Zeiss Jena Fluoval-2 fluorescence microscope is modular, and each of its elements can be easily detached and attached. This microscope element is mounted to the whole module using screws and the key https://www.microscopeparts.eu/part/00588.

Description of this part for the microscope.

net/docs/leitz/Leitz100-100z.pdf

Description of this part for the microscope.

with fluorescent illumination and a Ploemopak turret.

Description of this part for the microscope.

Olympus BHM
- but possibly also with others from the BH series

This illuminator allows operation in the following modes:
- EPI-BF (bright field in reflected light)
- EPI-DF (dark field in reflected light)
- EPI POL (polarization after installing a filter)

The set includes the light source (bulb).

Note - originally these illuminators work with Olympus NEO series objectives, but I have seen DIY modifications for standard RMS objectives.

Description of this part for the microscope.

inside which the power cables to the lamp are routed. These cables are covered inside the arm by a metal cover. This is exactly the element (metal cover) shown and offered here.

Description of this part for the microscope.

socket

This is an external electric illuminator for older type microscopes that use a mirror as a light source.

Mirror microscopes may have the mirror mounted vertically or horizontally, and this lamp (this illuminator) is compatible with both mounting types, as it has two mounting pins.

Note that this illuminator uses bulbs with a standard E14 socket, so an LED bulb can also be installed.

The PZO LM-2 illuminator has a place for a round filter with a diameter of 32 mm. Typically, the following are placed there:
- a diffuser to achieve uniform illumination
- a blue filter to convert the yellow, warm bulb light into a more white (cool) light
- or a blue diffuser to achieve both effects at the same time

Note - the PZO LM-2 illuminator is a so-called "simple" illuminator and does not allow achieving Koehler illumination. An external microscope lamp operating in the Koehler standard is called PZO LMK.

This is a universal microscope lamp and can be used with microscopes from many manufacturers.

Description of this part for the microscope.

The photos show the exact dimensions of this item.

Description of this part for the microscope.

notation: 45 09 35).

The Zeiss P/N 45 09 35 microscope lamp housing consists of the following elements:
- housing (so-called lamp housing)
- light source, halogen lamp 6V 20W
- lamp socket
- diffuser glass
- field diaphragm (iris diaphragm)
- round filter holder

The complete Zeiss 45 09 35 lamp housing can solve the following problems with the Zeiss Axioskop 20 microscope:
- field diaphragm is damaged, e.g. bent diaphragm blades
- lamp socket is damaged and the halogen lamp does not work
- top glass in the lamp housing is broken
- diffuser glass is damaged or heavily scratched
- illumination unit is completely missing in a used microscope from the secondary market

Various names are used for this element, among others:
- illumination
- microscope illumination
- illumination unit
- illumination module
- lamp housing
- light housing
- light source
- lighting unit
- halogen lamp
- lamp
- bulb
- field diaphragm
- iris diaphragm
- diaphragm
- aperture diaphragm (commonly used, although technically different)
- diffuser
- diffuser glass
- diffusion glass
- ground glass
- filter holder
- filter mount
- filter carrier

Description of this part for the microscope.

Leica
Light source connector diameter: 15 mm
Manufacturer catalog number: 10450398
Compatibility: the 15 mm connector fits light sources from Schott, Leica, Dolan-Jenner and other manufacturers using this standard

This element is used to transmit light through a fiber optic cable from a light source (illuminator) to a microscope XY stage. Such a stage is then used for transmitted light observation. A setup consisting of a light source - fiber optic light ring - XY stage was used for example in Leica DVM systems or in motorized Märzhäuser / Prior stages used in many microscopes, for example the Leica DM6000 microscope. This is a fiber optic light ring for a stage - not for one specific microscope, because such an illuminated stage can be mounted to various microscopes.

The Leica 10450398 fiber optic light ring with 15 mm connector can be used with the following light sources among others:
- Dolan-Jenner MI-150
- Dolan-Jenner MI-152
- Dolan-Jenner DC950H / HB
- Dolan-Jenner LMI-6000
- Schott KL1500
- Schott KL2500 LCD
- Leica KL1500 LED
- Leica KL300 LED
- KL models were also branded as Zeiss KL1500 / Zeiss KL2500

Description of this part for the microscope.

light beam are mounted in a metal housing which acts as a heat sink dissipating heat from the halogen bulb. The complete assembly forms the illuminator housing.

This is a part removed from the stand of an Olympus BX40 microscope. It has been tested and cleaned - and is suitable for use as a service element for repairing a damaged microscope. Many smaller Olympus service elements do not have their own catalog numbers or commercial names, therefore in the last photos in the gallery I indicate with an arrow exactly which element is being offered and where it is located inside the microscope. In this description some names used are descriptive rather than official technical commercial names.

Olympus BX series microscopes use identical assemblies in many different models, therefore there is a high probability that this element - although removed from a BX40 model - is also compatible with other BX series models (for example BX41, BX43, BX50, BX51 etc.). However, before deciding to install such an element in an Olympus BX microscope, it is advisable to first carefully compare shapes and dimensions or ask appropriate questions on forums and in Olympus BX microscope user groups.

Description of this part for the microscope.

microscope element allows expansion of a transmitted light microscope with a module for reflected light (EPI) observation:
- brightfield
- darkfield
- polarized light
- fluorescence
because this is exactly a "universal" illuminator.

The set includes a reflector cube for reflected light brightfield work. This is the Leica 1 BF 561034 cube (alternative number format: Leica 561 034).

Basic technical parameters of the Leica 565015 universal EPI reflected light illuminator:
- 4 filter cubes (reflectors) can be installed, for example brightfield BF (already installed here), darkfield DF, fluorescence cubes
- 4 round filters with 32 mm diameter can be installed
- a light source must be installed
- a polarizer and analyzer can be installed
- mounting connection to microscope body: 44.5 mm dovetail
- head mounting connection: 44.5 mm dovetail

The Leica 565015 EPI illuminator is modular and can be configured according to individual requirements. The example shown and offered here is a basic version which must be completed according to the user's own needs (however the "Leica 1 BF" reflector is already installed).

NOTE - as visible in the photos and in the video, the cover flap (protective cover) which covers the rotating turret with filter cubes (reflectors) is missing.

Description of this part for the microscope.

source
- Leica P/N 633-20-002
- 24V power supply (220-240V - 24V transformer)
- built-in ON / OFF switch
- continuously variable brightness control
- LED lamp installed inside

Important for certain applications, this illuminator features passive cooling, meaning a heat sink instead of a fan. As a result, there are no vibrations that are often transferred to the workbench and then to the microscope specimen. This is particularly important when observing in-vivo specimens where the medium is a droplet of water. In such cases, vibrations generated by a fan can cause movement of objects (for example microorganisms) within the water droplet, resulting in a blurred image.

IMPORTANT: this listing includes only the light source - no fibre optic light guide or ring illuminator is included.

Description of this part for the microscope.

illuminator)
Light source: 6V 25W halogen bulb, standard Narva HLWS5-A

This is a complete illuminator consisting of the following components:
- lamp housing with lenses for collimating the light beam
- light source with halogen bulb
- mounting holder for the Citoval-2 / Technival-2 microscope
In the user manual (https://www.mikroskop-online.de/Mikroskop%20BDA/30-725-1%20%20TECHNIVAL%202%20%20CITOVAL%202.pdf) these components are marked as items 7 and 8 on page 4.

Mechanically, this illuminator is mounted on an arm (illuminator holder), which can be clearly seen in the video attached to this description. This holder is attached to a special clamp located on the main objective.
The main objective of the Carl Zeiss Jena Citoval-2 / Technival-2 microscopes has two such clamps, allowing two holders and therefore two illuminators to be mounted. This allows the observed object to be illuminated from both sides. This is exactly why many users look for an additional illuminator.

This illuminator requires a transformer. It uses a 6V low-voltage halogen bulb and therefore cannot be connected directly to a mains power outlet.

The Carl Zeiss Jena Technival and Citoval microscopes (older version without the number "2") are grey, while the Technival-2 and Citoval-2 models are white. This illuminator is white and is therefore intended for the newer Carl Zeiss Jena Citoval-2 and Technival-2 stereo microscopes.

Description of this part for the microscope.

nm
Manufacturer part number: 11504195
Light source type: LED
Wavelength: 530 nm
Light colour: green (TRITC)
Microscope mounting method: dovetail mount
Mounting diameter: 48 mm
Compatible microscopes: Leica DMi8 / DM1000 / DM2000 / DM2500 / DM3000
Compatible filter cube: 530 nm LED (for example P/N 11504156)
ON/OFF switch: integrated into the illuminator together with a potentiometer for light intensity adjustment

This illuminator provides intense green fluorescence illumination for:
- Leica DMi8 inverted microscope
- Leica DM1000-DM3000 routine microscopes

Similar illuminators with different light colours (wavelengths) include:
- P/N 11504196 Leica SFL100, 365 nm
- P/N 11504138 Leica SFL100, 470 nm

Important:
- the included power supply is not an original Leica power supply - it is a compatible unit manufactured by another company
- to work effectively with this wavelength, the microscope must be equipped with a suitable optical filter set (a fluorescence filter cube)
- due to legal safety regulations, this LED illuminator is not available within the U.S.A.
- when working with fluorescence illumination, care should always be taken to avoid eye damage

Light at 530 nm is commonly used in two optical configurations.

1. As excitation light (Excitation). It excites fluorescent dyes with yellow, orange and red emission spectra:
- Cy3 / Alexa Fluor 546 / Alexa Fluor 555 - widely used markers in immunofluorescence
- TRITC / Rhodamine - classic rhodamine dyes used for antibody and cytoskeleton (actin) labelling
- dTomato / mStrawberry - red fluorescent proteins used in in vivo studies

2. As an emission detection band (Emission). In the classic blue-light excitation configuration (for example with a 488 nm laser), 530 nm corresponds to the emission maximum (green fluorescence) of:
- GFP (Green Fluorescent Protein) - a standard marker in genetic engineering and cell biology
- FITC / Alexa Fluor 488 - the most commonly used dyes for labelling cellular structures
- Fluo-4 / Calcein - indicators used to measure calcium ion concentration and cell viability

This illuminator does not use any unusual microscope mounting method - it employs a standard 48 mm dovetail mount. As a result, it may be possible to adapt it to other Leitz or Leica microscopes and even to microscopes manufactured by other companies.

Description of this part for the microscope.

US illuminator housing consisting of:
- dovetail mount with clamping screw used to attach the Lux-US illuminator to the Reichert Zetopan microscope
- intermediate tube with two slots for filter slides
- iris diaphragm (more precisely: field diaphragm)
- lens for collimating the light beam with focusing adjustment for the lamp filament

Information from the manufacturer's English-language catalogue "Zetopan Research Microscope. Price List, Effective December 1, 1976":
- This component belongs to the microscope illuminator. The catalogue number of the illuminator is: "Lux US" 9 14 41 04 and "Binolux 3 dual lamp housing" 9 60 05 21

In the photo gallery you will find precise dimensions of this microscope part, and the last photograph shows the complete Lux-US illuminator for the Reichert Zetopan microscope so that compatibility can be confirmed with certainty. In addition, the attached video demonstrates the mechanics of the moving components.

Older versions of the Reichert Zetopan microscope were equipped with a 6V 30W illuminator, while newer versions used the Lux-US illuminator with a 12V 100W halogen bulb. Currently (as of 2026), most hobby users of this microscope believe that this illuminator should be converted to an LED light source, whereas professional users still prefer a halogen bulb as a light source because it provides a full colour spectrum.
However, in both cases this illuminator housing is essential and must be repaired if damaged. Since it protrudes beyond the outline of the microscope (it is attached to the rear of the microscope base), it is exposed to mechanical damage.

Description of this part for the microscope.

housing design.

This is a finned heat sink mounted on the top of the halogen illuminator housing.

Important: The Lux-US halogen illuminator was used exclusively in Reichert Zetopan microscopes.

Reichert Diapan and Reichert MeF-2 microscopes do not use the Lux-US illuminator. However, the illuminators used in these microscopes have an identical mechanical housing and use the same radiator.

Therefore, the radiator offered here is also compatible with these microscopes - it is a repair part for the illuminator housing rather than for a specific microscope model.

Information from the manufacturer's English-language catalogue "Zetopan Research Microscope. Price List, Effective December 1, 1976":
- This component belongs to the microscope illuminator. The catalogue number of the illuminator is: "Lux US" 9 14 41 04 and "Binolux 3 dual lamp housing" 9 60 05 21

In the photo gallery you will find precise dimensions of this microscope part, and the last photograph shows the complete Lux-US illuminator for the Reichert Zetopan microscope so that compatibility can be confirmed with certainty. In that final photograph an arrow indicates exactly which part of the illuminator is being offered.

Older versions of the Reichert Zetopan microscope were equipped with a 6V 30W illuminator, while newer versions used the Lux-US illuminator with a 12V 100W halogen bulb. Currently (as of 2026), most hobby users of this microscope believe that this illuminator should be converted to an LED light source, whereas professional users still prefer a halogen bulb as a light source because it provides a full colour spectrum.

However, in both cases this illuminator housing is essential and must be repaired if damaged. Since it protrudes beyond the outline of the microscope (it is attached to the rear of the microscope base), it is exposed to mechanical damage. The relatively soft cooling fins are susceptible to damage, and in the case of a 100W halogen illuminator efficient passive cooling is very important.

Description of this part for the microscope.

housing.

This is a lamp socket (plug-in assembly with bulb) that slides into the illuminator housing.

Important: the Lux-US halogen illuminator was used exclusively in Reichert Zetopan microscopes.

Reichert Diapan and Reichert MeF-2 microscopes do not use the Lux-US illuminator, however the illuminators used in these microscopes have an identical mechanical housing and use the same lamp socket.

Therefore, the lamp socket presented here is also compatible with these microscopes - it is a repair part for the illuminator rather than for a specific microscope.

Older Reichert Zetopan microscope models were equipped with a 6V 30W illuminator, while newer models used the Lux-US illuminator with a 12V 100W halogen lamp. Currently (as of 2026), most amateur microscope users believe that this illuminator should be converted to an LED light source, while professional users still prefer a halogen bulb as a light source because of its full colour spectrum.
However, in both cases this lampenhaus is essential and must be repaired if damaged. Since it protrudes beyond the outline of the microscope (it is attached to the rear of the microscope base), it is exposed to mechanical damage.

The lamp socket is particularly sought after by users who want to convert the illuminator to a different light source, for example LED. For this purpose, the plug-in assembly usually needs to be modified irreversibly - and it is best to do this using a "spare" lamp socket rather than "destroying" the original one.

Note - this lamp socket does not include the plastic end cap. It is not essential for operation - however, I would like to point this out.

In the photo gallery you will find the exact dimensions of this element, and the last photo shows the complete Lux-US illuminator for the Reichert Zetopan microscope, allowing compatibility to be confirmed with certainty.

Description of this part for the microscope.

light source to be connected. The lamp house is installed on the left side of the microscope, while the built-in mirror prism redirects the light beam into the EPI nosepiece.

Fluorescence light sources are most commonly connected to this mount, but it is completely universal. It contains no filters and can be used with LED, HBO, XBO, halogen or even classic incandescent lamp houses.

If the light source is lightweight (one of the newer models), it can be mounted without any additional supports. If a large, heavy lamp house is used, additional support frames are often employed to carry its weight (these are optional accessories and are not included).

In its current configuration, this mount accepts lamp houses with a 48 mm connection diameter. However, this mounting adapter can be removed, leaving a plain tube that can accept virtually any adapter, allowing almost any manufacturer's light source to be connected.

The last photograph in the gallery shows a Zeiss Photomicroscope III microscope with this lamp house mount installed. An arrow indicates its exact location, making it easy to identify this component.

The video gallery also contains two videos. The first presents this component from different angles and in close-up. The second demonstrates how to remove this EPI lamp house mount using a Zeiss Photomicroscope III microscope (commonly known as the Zeiss Phomi III) as an example.

Description of this part for the microscope.

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.

Description of this part for the microscope.

models:
1. Carl Zeiss Jena Jenaval
2. Carl Zeiss Jena Jenalumar
3. Carl Zeiss Jena Jenapol
4. Carl Zeiss Jena Jenavert

1. In Carl Zeiss Jena Jenaval microscopes, this lamp house is used as the transmitted-light illuminator.

2a. In Carl Zeiss Jena Jenalumar 50 microscopes (equipped with the small HBO 50 fluorescent lamp house, identical to the one used in Carl Zeiss Jena Jenamed Fluorescence microscopes), this lamp house serves as the transmitted-light source.

2b. Carl Zeiss Jena Jenalumar 250 microscopes are equipped with a large integrated lamp house. The unit offered here is therefore not compatible with this model.

3. In Carl Zeiss Jena Jenapol microscopes, this halogen lamp house is used both for transmitted light (mounted underneath) and for reflected light (mounted on the top). However, some Jenapol versions are equipped only for transmitted-light operation or only for reflected-light operation.

4. Carl Zeiss Jena Jenavert microscopes are normally equipped with a different lamp housing for reflected light. However, when the original unit is missing, users often modify a lamp house like the one offered here for DIY projects. In addition, if a Jenavert is equipped with a transmitted-light optical path, this lamp house is used as its transmitted-light source.

The lamp house is attached to the microscope using two long screws. Unusually—and this often makes them difficult to find—the screws are removed FROM THE FRONT of the microscope. Their heads are accessible through openings in the white sheet-metal side covers of the microscope body. These covers with the screw openings are shown in this database under item number 99692.

This lamp house contains a filter wheel with four positions for 32 mm diameter round filters. It is fitted with the same filter configuration originally supplied by Carl Zeiss Jena for the Jenaval model:
- one position is empty
- Carl Zeiss Jena C312 blue filter
- Carl Zeiss Jena D282 grey filter
- Carl Zeiss Jena V231 green filter

The filter wheel is an optional part of this lamp house. The example offered here is fitted with it, but it can be removed and the illuminator will still function perfectly as a light source.

Cast or injection-moulded ZnAl components manufactured by Carl Zeiss Jena carry identification numbers. The housing of this lamp house bears the number 2670 (full marking: 2670 Si10 CZ).

In the last photograph, an arrow indicates where this component is located in the microscope, making it easy to identify.

Description of this part for the microscope.

are equipped with a base illuminator using a 6 V 15 W lamp. This can be replaced with:
a) a large 60-watt illuminator using a 12 V 60 W lamp
b) a halogen illuminator

This listing presents the illuminator described in option a), namely the 60 W incandescent lamp version.

Basic specifications of this illuminator:
Manufacturer: Carl Zeiss (Oberkochen, West Germany)
Model: 60-watt illuminator
Lamp voltage: 12 V
Lamp house mounting method: circular dovetail
Cooling: passive. The entire large lamp house also serves as a heat sink, dissipating the heat generated by the 60-watt lamp
Lamp socket centering screws: yes, the lamp socket is equipped with centering screws
Diffuser: yes, inside the lamp house, in front of the lamp condenser lens (the so-called illumination collector), there is a matte diffuser mounted in a flip-out holder

This particular unit was removed from a Carl Zeiss Photomicroscope II. However, it is compatible with most microscopes of the Zeiss Standard series.

This illuminator fits the following microscopes:
- Zeiss Standard 16 / GFL
- Zeiss Standard WL / WL 89
- Zeiss Universal
- Zeiss Photomicroscope
- Zeiss Photomicroscope II
- Zeiss Photomicroscope III RS
- and also the Zeiss IM 35 / ICM 405 inverted microscope

The following is a quotation from the Zeiss Photomicroscope II instruction manual:

60-watt illuminator

Instead of the 6-v. 15-w base illuminator, the 60-watt illuminator may be firmly connected to the microscope stand. For this purpose, the collector tube with lamp condenser, 46 70 50, must be removed after unscrewing the bottom plate and replaced by the connecting tube, 46 70 41 (Fig. 15). The 60-watt illuminator is mounted in the usual manner with the aid of a dovetail ring, like a body tube, for example.

The variable transformer is identical to the one for the base illuminator and supplies voltages from 0 ... 20 volts. When this equipment is used, the red scale of the voltmeter applies.

Several important points should be mentioned:
- if your microscope is currently equipped with the standard 6 V 15 W illumination system, the illuminator mounting adapter must also be replaced (this is described in the instruction manual quoted above)
- the lamp house of this illuminator is finished in grey. Some Carl Zeiss Standard series microscopes have black, cream or hammered-finish housings. This illuminator is mechanically compatible with those models, although the colour may not be an aesthetically perfect match
- power supplies with a rated output of exactly 60 W are virtually unavailable on the second-hand market. In practice, 12 V 100 W power supplies are used to operate this light source
- please note that exactly the same (!) illuminator is also used on the Zeiss IM 35 / ICM 405 inverted microscopes. Please also refer to the description of illuminator No. 00697 in this database. YES – these are exactly the same illuminators. However, that particular unit was removed from an inverted microscope and therefore has its own separate description. You will also find additional photographs there. In the Zeiss IM 35 instruction manual, the lamp socket is referred to as "Lamp socket 60 P/N 46 80 15", while the lamp house is referred to as "Lamp housing with lamp condenser P/N 46 72 27"
- this illuminator can be used for both transmitted-light and reflected-light (EPI) illumination
- if you would like to manufacture your own DIY illuminator mounting adapter because you do not have the original Zeiss part (P/N 46 70 41), the following information may be useful: the circular dovetail on this illuminator has a diameter of 43 mm, which is the same as on many microscope condensers and mono-, binocular and trinocular microscope heads. This means that, for example, a microscope head mounting adapter can be used as the basis for manufacturing a custom DIY illuminator adapter

Important: The photographs show a lamp installed in the lamp socket. This lamp DOES NOT LIGHT because it is burned out. It is shown only so that you can see which lamp model is used in this illuminator.

Description of this part for the microscope.

here is not a standalone lamp housing (such as part number 99693 in this database). It is an internal component of the large, integrated illuminator used in Carl Zeiss Jena Jenalumar 250 microscopes.

Carl Zeiss Jena Jenalumar microscopes are available in two main versions:
1. with two small illuminators – with a separate 6 V 25 W halogen illuminator in a small housing (for transmitted light) and a separate HBO 50 W fluorescence illuminator in a small housing (for reflected light)
2. with a large, integrated module consisting of a mirror light splitter, an integrated transmitted-light module with a 6 V 25 W halogen lamp, and a large lamp housing for HBO 250 W fluorescence illumination

The component offered here is part of the second version of the Jenalumar microscope.

Basic parameters of this illuminator module:
Supported lamp: Narva HLWS 6 V 25 W halogen lamp
6 V power connection: this illuminator is connected to the distributor rail (see part number 99679 in this database)
Cooling: passive, in two ways. The Narva HLWS lamp has integrated cooling in the form of “wings”, while the entire illuminator is covered with a cover incorporating a finned heat sink (this is a separate component and is not part of the illuminator offered here)

The photo gallery shows the exact dimensions of this component. The last photo shows the complete HBO 250 W illuminator for the Carl Zeiss Jena Jenalumar microscope, with an arrow indicating this halogen illuminator module. This makes it possible to identify exactly where this component is located within the complete large microscope illuminator.