Description:
• 500 mm, diameter, steel, disc is faced with matt white. It is marked every 5°, with extended lines every 10 °and 30°, cross lines mark the centre. The disc is mounted on a 25 mm diameter steel tube 390 mm long which fits into a stable base with levelling feet. The disk rotates about its centre and can be locked in any desired position. The lamphouse holds a 12 V, 24 Watt axial filament lamp. This lamphouse is covered by a rotatable outer shield that has various slots. By rotating the shield light beams of varying width can be provided as well as narrow single, double and triple beams. Attached to the lamphouse is an adjustable lens carrier with lens to provide diverging, parallel or converging light beams. The lamphouse is mounted on a rotatable arm that can be locked in any position. A Sliding weight on the arm acts as a counterpoise. All optical elements are supplied with magnets attached so that they can be attached at any place on the disc.
The disc is supplied complete with the accessories listed below:
• 1 Lamphouse with lamp
• 2 Plane Mirrors
• 1 Cylindrical Mirror
• 1 Semicircular block
• 1 Bio-convex Lens
• 1 Bio-concave Lens
• 1 Trapezoidal Block.
Product Code :- CLM/PHY/LO-039

Description:
• Comprising a 290 mm diam. metal disc.
• Graduated 0-90° in each quadrant.
• Supported at its centre in a vertical plane on a metal stand such that the disc can be rotated as desired.
• With a clip to clamp the optical accessories to the disc.
Product Code :- CLM/PHY/LO-040

Description:
• A 230 mm diameter disc marked from 0 to 360 degree at every 1 degree, with centre mark, on a stable base.
• The main disc and the lamp house with 12V, 24W bulb can be rotated and held in any desired position.
• With the lamp house, a rotatable disc with single, double, triple and quadruple slits and with adjustable lens carrier with lens for divergent, parallel or convergent light beams is provided.
• Optical elements provided for reflection are 50 mm wide.
• Optical element for refraction are semicircular, biconvex, biconcave, right angle prism and a trapezoidal acrylic blocks.
• These optical elements have powerful magnets attached for fixing of blocks to the disc.
Product Code :- CLM/PHY/LO-041

Description:
• Designed to demonstrate the laws of reflection and refraction in optics.
• Consists of an 230 mm rotatable disc with a 360° graduated scale.
• A heavy stand and light source.
• Complete with accessories including a triangle, a convex lens, a concave lens, a trapezoid and a semi-circle, all made of acrylic.
• Light source with slits is also included.
Product Code :- CLM/PHY/LO-042

Description:
• Made of optically flat plates cemented together.
• With hole & stopper at top.
• Dimensions 50x50x50 mm.
Product Code :- CLM/PHY/LO-043

Description:
• The apparatus consists of a metal bridge 130 x 90 x 80 mm.
• Fitted with anti-slip rubber edging strips.
• The air-cell holder is attached to a large knob and scale.
• Graduated 0-360 °.
• The air-cell takes the form of two flat glass plates, 50 x 50 mm, arranged parallel and at a small distance apart in a sealed masking frame.
• Liquid under investigation is contained in a transparent perspex tank.
Product Code :- CLM/PHY/LO-044

Description:
• For above, size 70x70x70 mm.
Product Code :- CLM/PHY/LO-045

Description:
• For demonstrating the refraction of light rays in water.
• Comprises a clear plastic box 175 x 115 x 60 mm with the base sprayed white inside to show the ray tracks.
Product Code :- CLM/PHY/LO-046

Description:
• Clear plastics, approx 600 x 200 x 75 mm for use in wave motion & ray optics demonstrations.
Product Code :- CLM/PHY/LO-047

Description:
• Comprising a black metal frame 150x100 mm with an aperture, and • A removable white card screen. • The card has an aperture with an index point for use as an object, or
• The card may be inverted and used as a receiving screen.
• Mounted on a base 100x50 mm.
Product Code :- CLM/PHY/LO-048

Description:
• The metal screen is painted matt white, with a cut-out in one side to locate over a metre rule. It may be used in either the vertical or the horizontal position as required.
Product Code :- CLM/PHY/LO-049

Consists of:
 • 8 Plano-convex lens fl 500mm, 1 Planoconvex lens of fl 150mm
• 12 Lens holders
• 4 Plates of different apertures,32,22,11 & 5.5mm diam. resp.
• 3 Plates with small holes in circles of 29,22,10 mm diam.
• 1 Plate with circular aperture of 5.5 mm diam.
• 4 Multi-aperture plates
• 4 Stop plates
• 2 Slide holders
• 6 Translucent screens.
• 10 White cards
• 4 Eye-pieces
• 15 each Red, green and blue filters
• 40 Black cards with holes
• 40 Razor blades
• 120 Rubber bands
• 1 Piece black chiffon for diffraction effects.
Product Code :- CLM/PHY/LO-050

Description:
• A double slit 10 mm long x 1 mm separation in 50x50 mm frame.
• Mounted in channel with a hinged joint & micrometer screw to give fine adjustment.
• For observation of fringes produced by interference between two beams of light from a common source.
Product Code :- CLM/PHY/LO-051

Description:
• Double slit 10 mm with 1 mm separation in frame of 50x50 mm. Unmounted.
Product Code :- CLM/PHY/LO-052

Decsription:
• Containing four ruling devices.
• One box of 72 microscope slides.
• A bottle of colloidal graphite to prepare double slits.
• The slide is accommodated in a groove in the ruling device which has a 0.5 mm pitch feed screw for control of spacing.
Product Code :- CLM/PHY/LO-053

A wooden base board with one meter scale divided into mms. with following accessories :
• 1 each White face object & receiving screens each 150x100 mm, with aperture, mounted on wooden base with an index mark.
• 1 Plane mirror 150 x 100 mm mounted as above
• 1 Lens holder V shaped , wooden.
• 1 Needle vertically mounted in a short wooden rod, on base.
• 1 Candle holder on base.
• The components have the same optical centre height.
Product Code :- CLM/PHY/LO-054

On wooden base, with 1.5 metre scale, with six sliding bases. Each siding base is with an index mark, a brass pillar & locking screw, with following accessories:
• 1 Lamphouse with 230 V lamp
• 1 Object screen, metal, white
• 1 Lens holder for 38 mm diam. lenses
• 1 Receiving screen, metal, white, with slot for squared paper on reverse
• 1 Object needle, mounted in brass rod
• 1 Plane mirror in metal frame
Each of these accessories is mounted on a 6 mm brass rod which fits into the pillars and is adjustable for heigh
Product Code :- CLM/PHY/LO-055

Description:
• Consists of a single square section steel rod, accurately graduated, fitted on to two sturdy metal feet with levelling screws with four specially designed heavy sliders with fine index marks. Two of the sliders have fine transverse motion arrangement. Supplied complete with two lens holders and two object needles.
Product Code :- CLM/PHY/LO-056

Description:
• Containing four ruling devices.
• One box of 72 microscope slides.
• A bottle of colloidal graphite to prepare double slits.
• The slide is accommodated in a groove in the ruling device which has a 0.5 mm pitch feed screw for control of spacing.
Product Code :- CLM/PHY/LO-057

Description:
• Designed for general laboratory work.
• The telescope is mounted on 18 mm dia.
• Pillar 450 mm long fitted on a heavy tripod base.
• The telescope can be rotated both in the vertical and horizontal planes.
• The telescope is fitted with 180 mm focus achromatic object with 25 mm clear aperture, 10 x ramsden eye piece with cross wire.
• The telescope is focused by rack and pinion and has a range from one meter to infinity with perspex scale and its attachment.
Product Code :- CLM/PHY/LO-058

Description:
• A high quality Instrument with a resolving power of 1.5 seconds. The 100 mm (4” inch) diameter ,1000 mm focal length mirror gives relatively more light and less chromatic aberration than an equivalent refractor. Magnifications of upto x 250 are obtainble. The telescope has an equatorial mount with hour and declination circle and microadjustments with flexible connections to avoid vibration. The whole is mounted on a heavy 1.52 m tripod with an accessory tray. Supplied complete with two interchangeable eye lenses 6 mm and 20 mm ,a 2x barlow lens sun filter ,moon filter,a 5x 24 star finder telescope (with mount on main telescope body), a solar apertur cap and an instruction booklet with space and moon maps.
Product Code :- CLM/PHY/LO-059

Description:
• For supporting diffraction objects or any other item in 50 mm square mount. Rectangular metal frame with spring clips and a mounting rod.
Product Code :- CLM/PHY/LO-060

Description:
• A steel needle point • Mounted in a 6 mm. metal rod.
• An overall length of 80 mm. approximately.
Product Code :- CLM/PHY/LO-061

Description:
• A circular blacked metal screen 75 mm dia, with a 10 mm dia aperture and cross wire of 26. s.w.g. Wire. Mounted on a 6 mm brass rod giving a centre height of 80 mm approx.
Product Code :- CLM/PHY/LO-062

Description:
• A circular metal screen 75 mm dia, with 10 mm central aperture covered with 1.5 mm mesh wire gauze.
• Mounted on a 6 mm brass rod.
• The optical centre height is 80 mm approx.
Product Code :- CLM/PHY/LO-063

Description:
• Comprises 5-litre round-bottomed flask with cork support ring, 25g fluorescein, packet Plasticine and one each +11D, +8D and +5.5D meniscus lens to demonstrate normal, long and short sight respectively. Correcting lenses of +2.5D and -3D included to demonstrate function of spectacles.
Product Code :- CLM/PHY/LO-064

Description:
• Circular blacked metal screen.
• Diameter are 75 mm with 12.5 mm central aperture.
• A screw controlled, spring loaded precision slit is mounted on one side of the disc, the adjustment drive being arranged so that the slit cannot be over tightened.
• The slit has bevelled jaws with brass, dovetail section slides, and provides a maximum slit opening of 4 mm approx., with a useful length of 10 to 12 mm.
• Mounted on a standard 6 mm dia brass rod, the optical centre height is 80 mm approx.
Product Code :- CLM/PHY/LO-065

Description:
• White metal frame, 100 x 75 mm with a graph paper screen divided in mms.
Product Code :- CLM/PHY/LO-066

Description:
• Cylindrical metal holder.
• Internal diameter 20 mm x 22 mm deep.
• Matt black.
• Mounted on rod.
Product Code :- CLM/PHY/LO-067

Description:
• Candle Holder.
Product Code :- CLM/PHY/LO-068

Description:
• A waxed paper screen with a wax-free central spot 16 mm dia mounted in a black metal frame 100 x 75 mm with central aperture of 51 mm. The frame is mounted on a 6 mm rod giving an optical centre height of 80 mm.
Product Code :- CLM/PHY/LO-069

Description:
• Two identical units each with a polaroid disc.
• Mounted in a rotatable mount with an aperture of 25 mm.
• Both mounts have a pointer moving over a 75 mm diam.
• Scale divided 0-90°-0-90°-0 x1°.
Product Code :- CLM/PHY/LO-070

Description:
• Circular black metal screen 75 mm diameter, with a central hole 0.6mm diameter approximately.
Product Code :- CLM/PHY/LO-071

Description:
• A circular black metal screen 75 mm diameter, with an adjustable iris diaphragm maximum aperture 6 mm.
Product Code :- CLM/PHY/LO-072

Description:
• Uses a basic pinhole camera kit consists of the following items:
• 8 cardboard boxes 150 x 100 x 100 mm with hole.
• Screen and lid.
• Filament lamp, 50 sheets of black paper 200 x 250 mm, one 60 watts lamp.
• One mounted lamp holder with flex, one packet of pins.
Product Code :- CLM/PHY/LO-073

Description:
• With a heavier screw thread.
• Carrying a drum which is divided into fifty divisions giving a reading of 0.01 mm.
• An index is provided with a 5 mm scale divided in 0.5 mm divisions.
Product Code :- CLM/PHY/LO-074

Description:
• A metal pillar to take 6 mm diameter rod.
• With lockscrew.
• Mounted on a heavy base 60 x 60 mm size, with index line.
• Supported on three feet.
• Overall height 63 mm.
Product Code :- CLM/PHY/LO-075

Description:
• Set of accessories and also suitable for other ray optics work. Consists of 15mm thick acrylic plastic accessories i.e. Biconvex lens, 90 mm length, radius of curvature 85 mm approx. Biconvex lens, 90 mm length radius of curvature 210 mm approx. Biconcave lens, 90 mm length, radius of curvature 120 mm approx. Circular block diam. 90 mm Semi-circular block diam. 90 mm Right angle prism, hypoteneuse 90 mm Trapezium block 87x24 mm. base x height Plane mirror 95x10x4 mm Curved mirror 95x10x4 mm.
Product Code :- CLM/PHY/LO-076

Description:
• The kit contains materials and devices for 20 basic geometrical optics experiments.
• The items are stored in a plastic tray with foam insert and transparent lid.
• A comprehensive student’s manual with descriptions, illustrations and didactic questions for all experiments is contained in the kit. 
Product Code :- CLM/PHY/LO-078A