Optical Needle | Parallax Pin Manufacturer,Supplier and Exporter in India

Optical Needle | Parallax Pin

Product Code : SCL-LAO-14593

Indian Lab Suppliers supplies the Optical Needle | Parallax Pin (Product ID: 14593) as part of its light and optics range. It is a fine metal pin on a base, used to locate images by removing parallax in optics experiments.

Quick Answer

When the pin tip and an image are at the same place, they stay together as the observer moves the head sideways; if they drift apart, the pin is moved until there is no parallax. This locates images in mirror and lens focal length experiments and in ray tracing through glass slabs and prisms. The needle is stainless steel or brass, 40–50 mm long and 0.5–1 mm thick, on a wooden, acrylic or metal base of about 100 × 50 mm, with vertical and horizontal adjustment. The tip is sharp; handle with care.

Key Specifications

ParameterDetail
NeedleStainless steel or brass, polished
Needle length40–50 mm
Needle diameter0.5–1 mm
BaseWood, acrylic or metal, approx. 100 × 50 mm
AdjustmentVertical and horizontal

Where This Is Used

Used to find the focal length of a Concave Mirror (Product ID: 11886) and to trace rays through a Glass Slab (Product ID: 14580). Browse the full Light and Optics range or related Physics Lab Equipment products.

Frequently Asked Questions

What is the no-parallax method?
Moving the pin until it and the image stay together as you move your eye sideways.

What is the needle made of?
Stainless steel or brass.

How long is the pin?
40–50 mm, depending on model.

Related Categories

Light and Optics · Physics Lab Equipment · Reflection and Refraction

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Office Address

Works: #975 Malleshwaram,
Bengaluru, Karnataka 560003

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