The optical alignment pin is a physics laboratory accessory used for checking and setting the common axis of components on an optical bench. It is intended for school, college and university laboratories where accurate positioning of lenses, mirrors, apertures, screens and light sources is required before conducting quantitative optics experiments.
Product Description
The STEMAids Optical Alignment Pin provides a visible reference point for aligning optical components. When one or more pins are positioned along a bench, their tips can be viewed along the bench axis to identify differences in height or lateral position.
Correct preliminary alignment helps reduce tilted images, off-centre beams and inconsistent measurements. The pin material, shaft dimensions, tip design, base configuration and optical-bench compatibility are not currently published. Buyers should verify these parameters before combining the pin with existing physics laboratory apparatus.
Key Features
- Common-axis reference: Helps establish a consistent height and line for mounted optical components.
- Visual alignment check: Makes lateral or vertical positioning errors easier to identify before an experiment.
- Improved setup consistency: Supports more repeatable positioning of lenses, mirrors, screens and apertures.
- Simple operation: Requires no electrical supply, calibration software or complex controls.
- Reusable laboratory accessory: Suitable for repeated setup work when protected from bending and impact.
- Broad optics utility: Can support compatible optical benches, rails and instructional alignment systems.
- Reduced setup time: Provides a practical reference before installing sensitive optical components.
Technical Specifications
| Specification | Detail |
|---|---|
| Product name | Optical Alignment Pin |
| Brand | STEMAids |
| Product category | Physics laboratory accessory; optical-bench alignment component |
| Capacity | Single-pin alignment reference |
| Primary function | Checking optical-axis height and linear component alignment |
What’s Included in the Kit
- Optical Alignment Pin: quantity
- Mounting base or optical-bench carrier
- Height-adjustment mechanism
- Storage packaging
- Optical bench and other components
Request the approved dimensions and supply configuration from the STEMAids institutional sales team.
Applications / Uses
- Establishing a common optical axis on a laboratory bench.
- Checking the centre height of lens and mirror holders.
- Aligning light sources, apertures and observation screens.
- Identifying sideways displacement between optical components.
- Preparing focal-length and image-formation experiments.
- Supporting diffraction, interference and ray-optics setups.
- Training students in systematic laboratory alignment procedures.
How to Use the Optical Alignment Pin
- Place the optical bench or rail on a stable, level laboratory table.
- Mount the alignment pin securely in its compatible carrier or base.
- Position a second reference pin or component farther along the bench where available.
- View the pin tips from one end of the bench at approximately the intended optical-axis height.
- Adjust the carriers until the reference points appear centred and collinear.
- Set the lens, mirror, aperture and screen holders to the same centre height.
- Remove unnecessary pins before activating the experiment light source.
- Recheck alignment whenever a holder or bench support is moved.
Safety note: Keep sharp or pointed pin ends away from faces and eyes. Switch off lasers and intense lamps before placing hands in the optical path or adjusting alignment components.
Care & Maintenance
- Wipe the pin and base with a soft, dry cloth after use.
- Protect the shaft and tip from bending, impact and corrosion.
- Do not overtighten carrier clamps or height-adjustment screws.
- Store the pin in a labelled, dry compartment when not in use.
Why Choose STEMAids
STEMAids supplies educational science equipment, STEM kits and hands-on learning products for schools and institutions. Its catalogue includes physics teaching resources and laboratory apparatus for practical science instruction. STEMAids also publishes specialised optics equipment, including laboratory laser products. Product-specific dimensions, compatibility and supplied accessories should be confirmed in the approved quotation.
Frequently Asked Questions
What is an optical alignment pin used for?
It is used to establish or check the common axis of components mounted on an optical bench or rail.
How does an alignment pin improve an optics experiment?
It helps identify height and lateral-position errors before measurements begin, reducing off-centre beams and poorly formed images.
What is the height of the STEMAids alignment pin?
The pin height is not published in the available product information. Confirm the centre height before ordering.
Does the pin include an optical-bench carrier?
The inclusion and design of a carrier or mounting base are not verified. Request a complete bill of materials.
Can one alignment pin establish an optical axis?
One pin provides a height reference, but two separated reference points generally make linear alignment easier to assess.
Is the pin suitable for laser alignment?
It can support preliminary alignment of a compatible laser setup, but the laser must remain switched off while the pin or other components are being positioned.
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