[contact-form-7 404 "Not Found"]
Newton’s Rings Apparatus
Optical Bench, Aluminium
Description
Bench has two steel rods, one of which is graduated in mm with heavy metal and supports with leveling screws with four metal slides which slide smoothly on the bench. Two of the slides have transverse motion arrangement. Complete with two lens holders and two object needles. Graduated to 1 m Graduated to 1.5 m
Optical Bench, Junior
Description
On wooden base, with 1.5 meter scale, with six sliding bases. Each siding base is with an index mark, a brass pillar and locking screw, with following accessories: 1. One lamp house with 230 V lamp. 2. One object screen, metal, white. 3. One lens holder for 38 mm diameter Lenses. 4. One receiving screen, metal, white, with slot for squared paper on reverse. 5. One object needle, mounted in brass rod. 6. One 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 height.
Optical Bench, wooden
Description
A wooden base board with one meter scale divided into mm with following accessories: One each White face object and receiving screens each 150 x 100 mm with aperture mounted on wooden base with an index mark. Two plane mirrors 150 x 100 mm mounted as above. One lens holder V shaped, wooden. One needle vertically mounted in a short wooden rod on base. One candle holder on base. The components have the same optical center height.
Optical Disc
Description
A 500 mm diameter disc marked every 5° is mounted on a heavy stand and is rotatable around its centre. It can be held in any desired position. The lamp house, with a 12V 24 W special filament lamp has rotatable slots to provide light beams of varying widths and also narrow single, double and triple beams. Attached to the lamp house is an adjustable lens carrier with lens to provide diverging, parallel or converging light beams which are clearly visible in classroom. The lamp house can be held in any desired position around the disc. Optical elements are two 50 x 25 mm plane glass mirrors, and a metallic cylindrical mirror, each mounted in a holder, for reflection. For refraction, 20 mm thick acrylic semi-circular block, bi-convex lens, bi-concave lens each 140 mm long and a trapezium with 125 mm base are provided. Each of these elements has embedded magnets to hold on to the disc.
Optical Set For Ray Track Apparatus
Description
Comprises a white painted wooden board mounted on nonskid plastic feet, and a removable turntable about 170 mm in diameter. Two orthogonal lines along the turntables diameter divide it into four equal quadrants Just beyond the rim of the turntable, a circular scale graduated 90 – 0 – 90 – 0 – 90 °, with 1° subdivision, Also includes a ray box with a 12 V, 24 W bulb Supplied complete with a cylindrical convex lens with focal length approx. 75 mm and two double slits, giving one wide beam slit and one each of single, triple and five slits An optical set is available separately, comprising of one each of rectangular, semi-circular, right-angled triangular – 90 ° 45 ° 45° trapezoidal, biconvex and biconcave prisms.
Periscope, Wooden
Physical Optics Kit
Description
Consists of: 1. Eight Plano-convex lens fl 500 mm, 1 Plano convex lens of fl 150 mm. 2. Twelve lens holders. 3. Four plates of different apertures, 32, 22, 11 and 5.5 mm diameter resp. 4.Three plates with small holes in circles of 29, 22, 10 mm diameter 5. One plate with circular aperture of 5.5 mm diameter 6. Four multi-aperture plates. 7. Four stop plates. 8. Two slide holders. 9. Six translucent screens. 10. Ten white cards. 11. Four Eye-pieces. 12. Fifteen each Red, Green and Blue filters. 13. Forty Black cards with holes. 14. Forty razor blades. 15. 120 Rubber bands. 16. One piece black chiffon for diffraction effects
Pin Hole Camera
