​​​​H. R.  Scientific Works

safety goggles 

total internal reflection

optical bench JUNIOR

STRAIGHT LINE OF LIGHT

PERISCOPE

Auto action spring type with stem

UNIVERSAL LENS HOLDER AUTO ACTION

WOODEN LENS HOLDER

SODIUM VAPOUR LAMP IN INBUILT HOUSING METAL

Brass dial head 40 mm diam. divided and marked in 100 divisions, vertical scale 10-0-10 mm, fitted on heavy brass disc, with 3 pointed legs, distance between legs 40 mm.

student polarimeter half shade

ray optic kit with lens acrylic 

SPHEROMETER DOUBLE DISC

On wooden base, with 1.5 meter scale, with six sliding bases. Each sliding base is with an index mark, a brass pillar and locking screw, with following accessories:
One lamp house with 230 V lamp.
One object screen, metal, white.
One lens holder for 38 mm diam. Lenses.
One receiving screen, metal, white, with slot for squared paper on reverse.
One object needle, mounted in brass rod.
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.

WOODEN BOX FOR SODIUM LAMP

SINGLE ROD BENCH METAL

SPECTROSCOPE WOODEN

Color: Brown
Material: Wooden
Use: Laborator

KALEDIOSCOPE PLASTIC

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