WITH COPPER BACK SILVERED.
DIMENSIONS , MM : 100 X 25
..............................75 X 50
............................100 X 50
............................100 X 75

Prod ID : MGS-4804 + SIZES

WOODN CUBE SHAPED SIDE 50 MM.

Prod ID : MSH-4805 + SIZES

SPHERICAL DOUBLE CONCAVE LENS , HIGHLY POLISHED.
DIAMETER , MM : 38 50 75 100
FOCAL LENGTH ,MM: 50 , 100 , 150 , 200 , 250 , 300 , 400 , 500 & 1000 .

Prod ID :BCCL-4806 + SIZES

SPHERICAL DOUBLE CONVEX LENS , HIGHLY POLISHED.
DIAMETER , MM : 38 50 75 100
FOCAL LENGTH ,MM: 50 , 100 , 150 , 200 , 250 , 300 , 400 , 500 & 1000 .

Prod ID : BCVL-4807 + SIZES

SIZES IN 38 MM & 50 MM. CONSISTS OF
ONE EACH:- BI-CONVEX , BI-CONCAVE , PLANO CONVEX , PLANO CONCAVE & 2 CONCAVE - CONVEX IN VELVET LINED BOX.

Prod ID : LSS-4808

WOODEN WITH V-SLOT TO HOLD LENSES.

Prod ID : LH-4809

OPTICALY TRUE.
SIZE : 75 X 50 X 18 MM
........100 X 50 X 18 MM
........125 X 65 X 18 MM

Prod ID : RGS-4810 + SIZES

CLEAR , BOUBBLE LESS GLASS.
SIZE , MM :- 25 , 38 & 50.

Prod ID : PGRA-4811 + SIZES

CLEAR , BOUBBLE LESS GLASS.
SIZE , MM :- 25 , 38 & 50.

Prod ID : PGE-4812 + SIZES

SIZE , MM :- 38 & 50.

Prod ID : PHG-4813 + SIZES

EQUILATERAL, FOR SPECTROMETER WORK.
SIZES : 25 X 25 MM,HT ; 32 X 32 MM,HT ; 38 X 38 MM,HT
AVAILABLE IN : CROWN GLASS.
..................... LIGHT FLINT GLASS.
..................... DENS FLINT GLASS.
..................... EXTRA DENS FLINT GLASS.

ALSO AVAILABLE DIFFERENT ANGLES PRISMS.

Prod ID : PG-4814 + SIZES

90-45-45 DEG .......SIZE: 108 X 76 X 76 MM
90-60-60 DEG .......SIZE: 127 X 14 X 63.5 MM
60-60-60 DEG .......SIZE: 76 X 76 X 76 MM .

Prod ID : PA-4815 + SIZES

FOR REFRACTION EXPERIMENTS AND ALSO USED WITH RAY TRACK APPARATUS,HARTLEY'S OPTICAL DISC & LIGHT BOX.
CONSISTS OF :-RECTANGULAR BLOCK
.....................-SEMICIRCULAR BLOCK 50 MM RADIUS
.....................-BICONVEX BLOCK 180 MM RADIUS
.....................-BICONVEX BLOCK 100 MM RADIUS
.....................-BICONCAVE BLOCK 180 MM RADIUS
.....................-BICONCAVE BLOCK 100 MM RADIUS
.....................-TRAPEZOIDAL BLOCK,WITH 60 & 45 DEGREE ANGLES PRISM
..................... .BLOCKS .

Prod ID : APOB-4816

BRASS DIAL HEAD 40 MM DIA WITH STAINLESS STEEL SCREW 0.5 MM OR 0.1 MM PITCH. HEAD DIVIDED IN 100 DIVISIONS READING TO 0.01 MM OR 0.05 MM AND REGISTERING ON VERTICAL SCALE 10-0-10 MM FRAME WITH FEET OF STAINLESS STEEL ON P.C.D. OF 46 MM SEPARATION APPROX 40 MM. ZERO ADJUSTMENT CAN BE DONE BY UNSCREWING THUMB SCREW .

Prod ID : S-4817

STABLE CAST BODY INTEGRAL WITH COLLIMATOR TUBE SUPPORT.THE COLLOMATOR AND TELESCOPE HAVE 170 MM FOCAL LENGTH AND 25 MM CLEAR APERTURE OBJECT GLASS.THE COLLIMATOR HAS A PRECISION SLIT AND TELESCOPE 8x RAMSDEN'S EYE-PIECE ON THE OTHER ENDS .FOCUSSING IS DONE BY HELICAL ACTION DEVICE.THE SCALE ,175 MM IN DIA ,IS DIVIDED IN DEGREES AND IS READ TO 0.1 DEGREE ( 6 MINUTES ) WITH THE HELP OF A VERNIER FIXED TO THE TELESCOPE ARM .THE SCALE CAN BE ROTATED THROUGH 180° AND LOCKED IN ANY DESIRED POSITION.THE TELESCOPE HAS BOTH THE COARSE AND FINE ADJUSTMENT FOR EXACT READING ,ADJUSTABLE HOLDERS .PRISM HOLDERS ACCOMODATES PRISM UPTO 38 MM HIGH .SUPPLIED WITH PRISM HOLDER ,GRATING HOLDER AND TOMMY BAR FOR ADJUSTING OPTICAL AXIS.

Prod ID : SS-4818

IT HAS A STABLE CAST IRON BODY WITH LEVELLING SCREWS AND PROTECTED CIRCULAR SCALE OF 150 MM DIA,READ BY TWO OPPOSITE VERNIERS TO ONE MINUTE OF AN ARC.TELESCOPE AND TABLE HAVE FINE ADJUSTMENT SCREWS.COARSE MOTION CAN BE MADE BY RELEASING THE CLAMPING SCREWS.THE COLLIMATOR AND TELESCOPE HAVE 175 MM FOCAL LENGTH AND 25 MM CLEAR APERTURE OBJECT GLASS.THE COLLIMATOR HAS AN ADJUSTABLE SLIT AND TELESCOPE HAS 8x RAMSDEN'S EYE-PIECE ON THE THE OTHER END.FOCUSSING IS DONE BY RACK AND PINION DEVICE.PRISM TABLE IS MARKED WITH LINES TO ASSIST PLACING THE PRISM WITH RESPECT TO THE TABLE LEVELLING SCREWS AND HAS SCREWED HOLES FOR FIXING PRISM AND GRATING HOLDERS.PRISM HOLDERS ACCOMODATES PRISM UPTO 38 MM HIGH.SUPPLIED WITH PRISM HOLDER , GRATING HOLDER , MAGNIFIER GLASS , TOMMY BAR FOR ADJUSTING OPTICAL AXIS.

Prod ID : SA-4819

THIS PRECISION BUILT INSTRUMENT IS USED FOR MEASURING ALTITUDES AND ANGLES.IT IS AN ESSENTIAL PART OF SHIPS NAVIGATIONAL EQUIPMENTS AND IS ALSO USED IN TRAINING AND EDUCATIONAL INSTITUTES.THE FRAME IS OF A RIGID METAL CONSTRUCTION AND INCORPORATES THREE LEGS UPON WHICH SEXTANT RESTS WHEN IN HORIZONTAL POSITION.ON THE ARC A GERMAN SILVER SCALE IS INLAID WHICH IS GRADUATED FROM -5 DEG TO 120 DEG WITH A SMALLEST DIVISION OF 1 DEG.THE WORM AND RACK ARE MADE ON A PRECISION MACHINE WITH UTMOST CARE. THE MICROMETER DRUM READS TO 12 SECONDS.INDEX MIRROR, HORIZON MIRROR AND SET OF FILTERS OF HIGH QUALITY ARE PROVIDED.THE SEXTANT IS SUPPLIED COMPLETE WITH A GALILEAN ( ERRECT IMAGE ) TELESCOPE AND AN ASTRONOMICAL ( INVERTED IMAGE ) TELESCOPE .

Prod ID : MS-4820

USED TO HOLD SEXTANT IN HORIZONTAL & VERTICAL POSITIONS.IT CONSISTS OF A FIRM GRIPPING CLAMP & A HEAVY TRIPOD BASE WITH THREE LEVELLING SCREWS. HEIGHT ADJUSTABLE FROM 118 CM TO 175 CM.

Prod ID : SS-4821

THE TELESCOPE IS MOUNTED ON A SPECIALLY DESIGNED CARRIAGE WITH SUPPORT RING TO STOP ABRUPT FALLING.THE CARRIAGE IS FITTED WITH TWO ADJUSTABLE SCREWS FOR PRECISE VERTICAL AND HORIZONTAL POSITIONING ON A 25 MM DIA,450 MM LONG STEEL PILLAR,FITTED ON A CAST IRON BASE WITH LEVELLING SCREWS.A SCALE HOLDER IS PROVIDED.
FITTED WITH AN ACHROMATIC OBJECTIVE OF FOCAL LENGTH. 178 MM, CLEAR APERTURE 23 MM AND 8x RAMSDEN EYE PIECE WITH A 90 DEG . CROSS LINE RETICLE.THE FOCUSSING IS DONE BY RACK AND PINION MECHANISM ,WITH A RANGE FROM 1000 MM TO INFINITY .

Prod ID : SRT-4822

MADE OF MILKY WHITE PLASTIC SHEET FITTED IN A FRAME , LENGTH 50 CMS. DIVISION NUMBERED 25-0-25 AND 0-50 SM , INVERTED FIGURES.

Prod ID : SFRT-4823

THE TELESCOPE IS FITTED ON A UNVERSAL CLAMP WHICH CAN BE MOVED ON A STEEL PILLAR OF 12.7 MM DIA AND 500 MM LONG FITTED ON A HEAVY TRIPOD BASE. FITTED WITH AN ACHROMATIC OBJECTIVE OF FOCAL LENGTH. 178 MM, CLEAR APERTURE 23 MM AND 8x RAMSDEN EYE PIECE WITH A 90 DEG . CROSS LINE RETICLE.THE FOCUSSING IS DONE BY RACK AND PINION MECHANISM ,WITH A RANGE FROM 1000 MM TO INFINITY .

Prod ID : SRT-4824