Iris diaphragm
Product Code : SCL-OS-12868
The Iris Diaphragm by Educational Instrument is designed for experiments where teachers and students need controlled light passage through an optical system. By opening or closing the aperture, the user can regulate the amount of light entering a lens, screen, optical bench setup, eye model, or projection arrangement.
This accessory supports practical learning in geometrical optics, image formation, beam control, focal point observation, and light intensity comparison. Exact aperture range, material, mounting type, outside diameter, and compatibility details should be confirmed before quotation or tender submission. Related Educational Instrument pages include Optical Sectional, Lens Holder, Filter Holder, and LED Light Source.
Key Features
Adjustable aperture for controlling beam size and light intensity.
Useful for optics, projection, image formation, and optical alignment experiments.
Supports demonstrations of aperture size, brightness, focus quality, and field control.
Can be used with compatible lenses, light sources, screens, and optical benches.
Manual operation makes it suitable for classroom demonstrations and student practicals.
Helps students connect aperture control with real optical instruments and eye models.
Aperture range, mount type, and material can be confirmed as per supplied model.
Technical Specifications
Compatible WithLight sources, lens holders, optical benches, screens, projection setups, and optics kits; confirm mounting compatibility
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Specification |
Detail |
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Product Name |
Iris Diaphragm |
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Brand |
Educational Instrument |
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Product Category |
Physics Lab Equipment / Optical Sectional / Adjustable Aperture Accessory |
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Primary Keyword |
Iris Diaphragm |
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Secondary Keywords |
adjustable aperture diaphragm, optical iris diaphragm, physics lab aperture, beam control aperture, optics lab accessory, light intensity control |
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Intended Users |
Schools, colleges, universities, STEM labs, physics teachers, and laboratory instructors |
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Primary Use |
Controlling light passage, aperture size, beam diameter, and optical alignment |
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Aperture Type |
Adjustable iris aperture |
What's Included in the Kit
1 × Iris Diaphragm
Mount, stand, or holder: [confirm if supplied]
User instructions or packing details:
Applications / Uses
Controlling light intensity in optics experiments.
Adjusting beam diameter before light passes through a lens or screen.
Demonstrating the effect of aperture size on image brightness and clarity.
Supporting focal length and image formation experiments.
Using in optical bench layouts with lamps, LED sources, lenses, and screens.
Explaining the function of the iris in the human eye and optical instruments.
How to Use the Iris Diaphragm
Place the Iris Diaphragm on a stable optical bench, holder, or demonstration stand.
Align it with the light source, lens, screen, or optical component being used.
Open the aperture gradually to allow light to pass through the centre.
Reduce the aperture to narrow the beam or decrease transmitted light intensity.
Observe changes in brightness, beam width, image sharpness, or projected field size.
Record the effect of aperture adjustment on the experiment result.
Close the aperture gently after use and store the unit safely.
Safety note: Do not force the iris mechanism. When using lasers or bright lamps, avoid direct eye exposure and operate the setup under teacher supervision.
Care & Maintenance
Keep the diaphragm clean, dry, and free from dust.
Operate the aperture lever or ring gently to avoid mechanical damage.
Do not touch or bend the iris blades.
Store the unit in a protected laboratory cabinet after use.
Why Choose Educational Instrument
Educational Instrument manufactures and exports scientific laboratory instruments, lab experiment setups, science kits, mathematics kits, didactic models, and STEM models for educational institutions. The brand supplies physics and optics teaching apparatus for schools, colleges, universities, and training laboratories. Its range includes optical sectional equipment, lens holders, filter holders, light sources, optical benches, and demonstration accessories. Buyers can request confirmed specifications, packing details, and tender documentation before ordering.
Frequently Asked Questions
What is an Iris Diaphragm used for?
An Iris Diaphragm is used to control aperture size, light intensity, and beam diameter in optics experiments. It helps students observe how changing an aperture affects light transmission and image quality.
Can an Iris Diaphragm be used in school physics labs?
Yes, it is suitable for school and college physics laboratories when used under teacher or laboratory instructor supervision.
Does the Iris Diaphragm include a stand?
The inclusion of a stand, mount, or holder should be confirmed before ordering. Supplied accessories may vary according to model or quotation.
What experiments use an Iris Diaphragm?
It can be used in light intensity control, beam narrowing, focal length, image formation, projection, and eye-model demonstrations.
What is the aperture range of this Iris Diaphragm?
The aperture range should be confirmed from the supplied model’s technical specification. It should not be assumed without verified manufacturer data.
Can it be used with an optical bench?
Yes, it can be used with a compatible optical bench or holder if the mounting arrangement matches the setup. Buyers should confirm compatibility before purchase.
For complete optics teaching setups, explore Educational Instrument’s Physics Lab Equipment category for iris diaphragms, light sources, lens holders, filter holders, optical benches, and classroom demonstration apparatus.
Suggested ALT text: Iris Diaphragm with adjustable aperture for physics lab optics experiments by Educational Instrument.
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