Quick Answer: Wooden Projection Screen 6×4 Inch is a compact screen on a wooden support, with a nominal 6 × 4 inch surface for receiving the real images formed by convex lenses and concave mirrors in optics practicals.
Last updated: October 2026
Key Features
Nominal screen size 6 × 4 inches
Wooden supporting construction
Receives real images from a convex lens or a concave mirror arrangement
No electrical connection needed
Compact enough for classroom benches, optical set-ups and portable experiment kits
Technical Specifications
Specification
Value
Screen size
6 × 4 inches (nominal)
Support
Wood
Electrical connection
Not required
About This Product
The screen is moved slowly along the image path behind a lens until the projected image is sharp, after which the image distance is measured from the lens or mirror. This is the basic step in Light And Optics focal-length and image-formation practicals, and the compact format suits portable set-ups such as optics experiment kits for schools.
Frequently Asked Questions
Q1. Can a virtual image be shown on this screen? No. A screen can only receive real images, such as those formed by a convex lens or a suitable concave mirror arrangement; a virtual image cannot be projected onto it.
Q2. How is it used to find the focal length of a convex lens? A distant object is focused through the lens and the screen is moved until the image is sharp; the distance from the lens to the screen is then measured.
Export orders from Lab Equipments Ambala have gone to buyers in Japan, Uganda and Barbados, among other markets.
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