Ray Box, Includes: (1) Ray Box, (2) Meter Of Flex, (2) 4mm Plugs, (1) 12V - 24W B15 Bulb, (1) Bulb Holder, (1) Slit Plate, (2) Aluminium Blanking Plates, Traditional Ray Box Has Three Openings, Two Of Which Can Be Used Simultaneously By Two Sets Of Pupils
Laser Diffraction Kit, lets students create, view, and measure diffraction and interference patterns, kit includes two laser pointers-red and green - along with a convenient mounting base and a slide set of diffraction objects
Ray Box Comes With Single And Triple Slit Plate, A Ventilated Lamp House Having An Open Front With Extended Sides Finned Externally For Heat Dissipation And Vertical Internal Grooves To Accommodate A Slit Plate And Cylindrical Lens. It Has A Light Source Comprising 12 Volts, 21 Watts Lamps
Premium red and green laser pointer. Green laser range is 6000 ft at 532nm wavelength. Red laser range is 1500 ft at 650nm. Perfect for small and large meeting rooms. FDA Class IIIA Compliant. Size is 5/8in x 6 1/8in. 2 AAA batteries
Digital Luxmeter, economical solution for light measurements in a learning situations, the autoranging feature makes a one-button-and-done instrument, auto power-off conserves battery power, and other functions include MAX, MIN, and HOLD, Requires a 9V battery (not included)
Sodium light source, 20W low pressure discharge lamps for spectral work. Delivers approximately 350 lux at 20 cm and more than 90% of the light is concentrated in the doublet at 588.9/589.5 nm. Faint lines of the mercury spectrum are also visible.
Economical laser pointer, are useful for many optical experiments, Lasers operate on a push-button switch, are housed in a rubberized aluminum pen-style case, and include a pocket clip. Also includes a proprietary clip that is designed to hold laser button during experiments
Economical laser pointer, for many optical experiments, Lasers operate on a push-button switch, are housed in a rubberized aluminum pen-style case, and include a pocket clip, Also includes a proprietary clip that is designed to hold laser button during experiments, 6x0.5 inch
Mercury light source, 20W low pressure discharge lamps for spectral work. Delivers approximately 100 lux at 20 cm with prominent lines at 434.7, 546.0, 577.0, and 579.1 nm as well as many faint lines.