Optical Needle / Parallax Manufacturer,Supplier and Exporter in India
Product Code : SCL-LAO-11216
The Optical Needle for Parallax manufactured by Lab Exports is a durable, high-utility laboratory accessory engineered specifically for optical bench applications. The needle features a fine-pointed, nickel-plated steel pin that provides a sharp, highly visible target during ray tracing and image location procedures. This steel pin is mounted on a robust, non-corrosive brass support rod, ensuring that the alignment remains perfectly vertical and true during adjustments.
Designed for easy integration, the mounting rod fits standard optical bench riders and bossheads. By providing a clean, distraction-free visual indicator, this tool helps students master the method of parallax—where the relative displacement of the object needle and the real image vanishes when they are at the exact same focal plane. This precise instrument is a critical addition for institutions seeking reliable physics lab equipment and standard-compliant school education kits.
Key Features
Fine-Pointed Steel Pin: Features a sharp, precision-machined tip to ensure high visual accuracy and clear alignment.
Corrosion-Resistant Plating: Nickel-plated steel needle resists rust and oxidation over years of repeated handling.
Rigid Brass Support Rod: High-rigidity mounting rod prevents flexing, keeping the needle straight and steady.
Standard Bench Compatibility: Designed with a uniform rod diameter to fit securely into standard optical riders and stand clamps.
High-Visibility Contrast: Bright metal finish provides excellent visual contrast against dark laboratory backgrounds or optical tracks.
Easy Height Adjustments: Cylindrical rod profile allows quick vertical positioning and secure clamping.
Technical Specifications
Style
|
Specification |
Detail |
|
Product Name |
Optical Needle for Parallax Experiments |
|
Brand |
Lab Exports |
|
Needle Material |
Nickel-plated steel |
What's Included in the Kit
1 x Optical Needle assembly with integrated mounting rod
1 x Protective rubber tip cap for safe storage
1 x Quick-start reference guide for parallax alignment techniques
Applications / Uses
Locating the real images formed by convex lenses and concave mirrors.
Determining focal lengths of various optical lenses on a standard optical bench.
Training students in advanced physics concepts, optics labs, and interactive didactic models.
Serving as a physical coordinate pointer in general mechanics and wave-front alignment labs.
How to Use the Optical Needle for Parallax
Insert the mounting rod of the optical needle into a standard optical bench rider or a secure bosshead clamp.
Position the optical needle along the axis of your optical bench, aligning the pointed tip with the principal axis of the lens or mirror being tested.
Look through the lens or mirror from the opposite side to view the formed real image.
Introduce a second optical needle (acting as the image locator pin) on the optical bench near where the image appears.
Move your eye from side to side while observing both the real image and the image locator needle.
Adjust the position of the image locator needle along the bench track until both the tip of the needle and the tip of the real image move together without any relative shifting. When this occurs, parallax is eliminated, marking the exact plane of the image.
Safety Note: The needle tip is sharp. Always keep the protective rubber cap on the tip when the needle is not in use, and handle with care during setup.
Care & Maintenance
Wipe the steel pin down with a dry, lint-free cloth after each physics lab session to remove finger oils and moisture.
Always slide the provided protective rubber tip cap onto the needle point before storing it to prevent damage and accidental pricks.
Store the needles in a dry, organized storage tray alongside your primary educational laboratory instruments to prevent bending or blunting.
Why Choose Lab Exports
Lab Exports is an established global manufacturer and premier exporter of durable scientific laboratory instruments and physics training kits. We manufacture our optics accessories under strict quality control guidelines to ensure consistent dimensions, clean finishes, and exceptional durability. Our comprehensive export network ensures that schools, universities, and research centers worldwide receive reliable educational tools on time, every time.
Frequently Asked Questions
What is an Optical Needle used for?
In physics labs, it is used as an object or image marker to find focal points and map light paths on an optical bench by eliminating parallax errors.
What material is the optical needle made of?
The needle is made from nickel-plated steel to ensure it remains perfectly straight, highly visible, and resistant to corrosion.
How does this needle help eliminate parallax?
By placing the needle tip at the same focal plane as the virtual or real image, the relative visual shift between the image and the needle disappears when viewed from different angles.
Is this needle compatible with all optical benches?
Yes, the standard cylindrical mounting rod is designed to fit universally into the riders, clamps, and stand holders of most major laboratory optical systems.
Are these needles sold individually or in pairs?
They are generally sold individually, but we highly recommend purchasing them in pairs as most parallax experiments require both an object needle and an image locator needle.
Explore our complete selection of optical benches, lenses, and alignment accessories by visiting our primary Lab Exports product catalog.
