An optical instrument that permits the view of an otherwise obstructed field above or below the level of viewer or above view. Comprising a Z- shaped square tube with both the projecting arms having plane mirrors mounted at 45o facing each other. 

<div class="page" title="Page 170"> <div class="section"> <div class="layoutArea"> <div class="column"> <p><span style="font-size: 18px; font-family: TrebuchetMS; color: rgb(36, 27, 31);">Useful for studies of fundamental principles of optics using ray trac...

<div class="page" title="Page 173"> <div class="layoutArea"> <div class="column"> <p><span style="font-size: 18px; font-family: TrebuchetMS; color: rgb(36, 27, 31);">A versatile kit of components for ray optics experiments. Investigations possible include linear p...

For exploring the various concepts of optics involving reflection and refraction using ray tracing technique. Comprises a sheet metal disc, about 30cm in diameter, painted white at the top with clamping assembly at its underside for mounting it on a vertical support rod in either of horizontal...

A simple device for the rapid qualitative examination of composition of emission and absorption spectra. It has the principle components – collimator, prism and telescope, all arranged along the same straight tube. Comprises a plated brass pipe with adjustable slit at one end for adjusting the...

For measurement of optical rotation of plane polarized light by solutions of optically active substances. Comprises of two polaroids – fixed polarizer with Laurent's Half Shade device and rotatable analyzer, mounted at the opposite ends of a tube along the same horizontal axis. The analyzer ha...

Suitable for spectroscopy, polarimetry, refractometry and interferometry. Complete with vacuum jacket, rated 35 watts. For producing highly intense monochromatic light. Each lamp has a glass envelope with an inner discharge tube containing the gas or vapour and two electrodes. The envelope is ...

A convex mirror or diverging mirror is a curved mirror in which the reflective surface bulges towards the light source. Convex mirrors reflect light outwards, therefore they are not used to focus light. ... The image is smaller than the object, but gets larger as the object approaches the mirror.

A concave mirror, or converging mirror, has a reflecting surface that is recessed inward (away from the incident light). Concave mirrors reflect light inward to one focal point. They are used to focus light. Diameter 38mm   Focal Length Power 222/1 50mm +20.00D 222/2 100m...