Quick Answer: The Ray Optics Box is a ventilated, open-fronted ray box with externally finned sides, supplied with a single and triple slit and a 12 V, 21 W lamp on one metre of twin flex.
Last updated: October 2026
Key Features
Open fronted, ventilated box with sides finned externally for heat dissipation
Vertical internal grooves accommodate a slit plate and cylindrical lens
Single and triple slit, whitened on one side and matt black on the other
12 V, 21 W lamp with one metre of twin flex ending in 4 mm connectors
45 mm width: not suitable for 50 mm filters
Operates on a 12 V power supply, not included
Technical Specifications
Specification
Value
Bulb specification
12V 21-24W SBC
Length of cable
1M
Width
45mm
Power supply
12V, not included
About This Product
The vertical internal grooves hold a slit plate and a cylindrical lens in front of the lamp, and the finned sides help dissipate heat. Replacement bulbs and collimating lenses are available as spares.
Frequently Asked Questions
Q1. Can 50 mm filters be used? No. At 45 mm wide, the ray box is not suitable for use with 50 mm filters.
 (1).png)
 (1).png)
.jpeg)
