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High quality durable wooden box. When box is closed it measures 6.5" 7 different size dia holes to allow light to enter box 5.5? Yellow scale The ...

Adjustable slit and draw out focusing 3 element prisms Wooden Case Includes: (1) Spectroscope For the rapid examination of spectra...

Cylindrical metal holder, Matt black, mounted on rod.Cylindrical metal holder, 20 mm internal diameter x 22 mm deep. Matt black, mounted on rod.

A circular black metal screen 75 mm diameter, with a 10 mm diameter aperture with cross wires.A circular black metal screen 75 mm diameter, with a ...

Transmission type, mounted in 50 x 50 mm mounted in frame. 100 Lines / mm. Transmission type, mounted in 50 x 50 mm mounted in frame. *This product...

Transmission type, mounted in 50 x 50 mm mounted in frame. 300 Lines / mm. Transmission type, mounted in 50 x 50 mm mounted in frame.. *This produ...

Transmission type, mounted in 50 x 50 mm mounted in frame. 600 Lines / mm. Transmission type, mounted in 50 x 50 mm mounted in frame. *This product...

Digital Light Meter used to measure the amount of ambient light Three ranges: 2000, 20000 and 50 000 Lux. Professional quality and high accuracy H...

With fixed slit fitted with achromatic objective glass and 3 element prisms. Complete in a wooden case.For the rapid examination of spectral compos...

Basic spectroscopes able to view variable light spectra Hold it up to different lights to observe which wavelengths are present Light enters th...

For demonstrating the principle of the diffraction grating and the way in which its properties are dependent upon the number of lines per unit leng...

Spectroscope has a strong housing for student use. Very good resolution Printed scale in English on metal case 7" x 4.75"x 1.125" metal case Direc...

Goniometer-type spectrometer provides hands-on experience observing and measuring light spectra 0 to 360 degree rotation, 1 degree graduations, an...

EISCO Ray Box(1) Ray box, (2) meter of flex, (2) 4mm plugs, (1) 12V - 24W B15 bulb, (1) bulb holder, (1) slit plate, (2) aluminum blanking platesTh...

Contains (2) 12V/24W lamps which require separate power supply Contains: 1 Pair of housing shields, 2 combined single and triple slit plates, 2 mu...

Effectively demonstrate the spectral lines of water vapor 26cm long tube is designed to provide a greater viewing area Made of high-quality transp...

A 26cm spectrum tube placed into this Power Supply will emit gas discharge spectral lines which can be analyzed with a spectrometer. NOTE: spectru...

Set of one Transmitter and Receiver each housed in a small plastic case. The system comes complete with 5m and 10m sheathed polymer optical fiber ...

General standGeneral purpose stand for accessories

Adjustable Iris Diaphragm made of quality black metal 3" (75mm) diameter, maximum inner diameter of 1.25" (30mm). 2.5" rod, 5" total length Use...

Conical Lamp house. 240V 15W. Mounted on a 6 mm metal rod. A 240V 15W white B.C. pygmy lamp in a conical lamp house. Mounted on a 6 mm metal rod. S...

Made of sheet metal. Supplied with clamp, rod & metal base. For sodium lamp, made of sheet metal, adjustable to any angle. Supplied with clamp...

Battery Operated LED Light Ray Box with 7 Grooves Ideal for classroom demonstrations in physics, optics, reflection, refraction and more Includes ...

Lens Cylindrical Lens Cylindrical for above