Optika OPTIGEM User manual

microscopes

i T A L Y

OPTIKA MICROSCOPES - ITALY

www.optikamicroscopes.com - [email protected]

Ver. 4.1.0

OPTIGEM

OPERATION MANUAL

MANUAL DE INSTRUCCIONES

Page 2

INDEX

1.0 DESCRIPTION page 3

2.0 INTRODUCTION page 5

3.0 UNPACKING AND ASSEMBLY page 5

4.0 USING THE MICROSCOPE page 5

4.1 Illumination system

4.2 Adjust interpupillary distance

4.3 Mounting the jewellery clip

4.4 Focus and regulation of the focusing tension

4.5 Dioptric compensation

4.6 Magnification and working distance

4.7 Observing objects in horizontal position

5.0 OPTIONAL ACCESSORIES page 7

6.0 MAINTENANCE page 9

6.1 Microscopy environment

6.2 To think about when and after using the microscope

6.3 Electrical safety precautions

6.4 Cleaning the optics

7.0 TECHNICAL SPECIFICATIONS page 9

8.0 RECOVERY AND RECYCLING page 10

9.0 APPENDIX 1 – USING THE OPTIONAL ACCESSORIES page 11

Page 3

1.0 DESCRIPTION

Light path

seLector Lever

Dioptric

compensation

photo/viDeo capturing

tube

biLateraL

zoom knob

stage

brightness controL

trinocuLar

stereo heaD

objectives

Fig. 1: OPTigEM: righT sidE viEw

jeweLry cLip

eyepiece

Focusing

carrier

stanD

base

Page 4

1.0 DESCRIPTION

tiLting knob

veLvet Dark FieLD

sLiDer

inciDent iLLuminator

with FLexibLe arm

Focusing knob with

tension controL

Fig. 2: OPTigEM: lEFT sidE/back viEw

Lock screw

Dark FieLD

iLLuminator

transmitteD Light

iLLuminator

support For

horizontaL

viewing

aDapter

power cabLe

power switch

iLLumination

seLector knob

Page 5

The microscope OPTIGEM is a scientific precision instrument that has been developed especially

for professional gemmological use. It has been built to high optical and mechanical standards to

withstand many years of daily laboratory use.

The advanced illumination system, using combinations of transmitted, incident and dark field LED

illumination, allows a thorough and complete analysis of the surface of the object. The microscope

body and head can be rotated 360° and the stand can be inclined 90° to switch between vertical and

horizontal position which gives a large flexibility observation.

The stereoscopic head of the microscope is equipped with two separate optical systems that give an

excellent field depth to the image and is also fitted with a continuous zoom system with a span from

0.7x to 4.5x. The trinocular port of the head offers the possibility to attach a photo or video camera

in order to view and elaborate the microscope image on a TV or computer monitor.

Optika reminds you that this manual contains important information on safety and maintenance, and

that it must therefore be made accessible to the instrument users.

Optika declines any responsibility deriving from instrument uses that do not comply with this ma-

nual.

2.0 INTRODUCTION

The microscope is delivered assembled and ready for use. Remove it from the wooden case,

and place it on a solid table.

4.1 Illumination system

The OPTIGEM microscope comes with an integrated LED illumination system that consists

of three separate light sources:

• Incident illumination: through a flexible arm attached to the microscope stage.

• Transmitted illumination: from the hole of the microscope stage.

• Dark field illumination: a LED ring on the inside of the hole of the stage.

Before starting, read the section 6.3 about electrical safety precautions. Then, insert the power cord

into the microscope, the power adapter to the electrical net and switch on the instrument on the back

of the microscope.

Use the illumination selector knob to change between different illumination combinations and use

the brightness control to modify the light intensity.

The velvet dark field slider can be inserted, if needed, to increase the contrast of the dark field.

veLvet Dark FieLD

sLiDer

3.0 UNPACKING AND ASSEMBLY

support For

horizontaL

viewing

iLLumination

seLector knob

4.0 USING THE MICROSCOPE

Page 6

4.2 Adjust interpupillary distance

Hold the right and left parts of the observation head by both hands and adjust the interpu-

pillary distance by moving the two parts until one circle of light can be seen. If two circles

appear, the interpupillary distance is too big, and if two overlapped circles appear, the inter-

pupillary distance is too small.

4.3 Mounting the jewellery clip

The jewellery clip can be mounted in one of three different holes on the stage plate: one

in the front and one on each side. Once attached, the object to examine can be placed in

the jewellery clip.

4.0 USING THE MICROSCOPE

4.4 Focus and regulation of the

focusing tension

Turn the zoom to the highest magnification

using the bilateral zoom knob. Try to focus the

sample using the focusing knobs.

The tension of the focusing knob can be adju-

sted by rotating the right focusing knob kee-

ping still the left focusing knob.

4.5 Dioptric compensation

This compensation makes it possible for

people with glasses to adjust the microscope

to their eyes and use the microscope without

glasses. Turn the zoom down to the lowest

magnification.

Adjust the dioptre compensation ring of the right eyepiece tube until the image of the right

eyepiece is clear and sharp. Repeat the procedure for the left eyepiece. Then, check the

focus of the image for the whole zoom range. It should now be perfectly parfocal (focus is

always maintained during the change of magnification).

4.6 Magnification and working distance

The jewellery clip can be mounted in one of three different holes on the stage plate: one

in the front and one on each side. Once attached, the object to examine can be placed in

the jewellery clip.

Select the desired magnification by adjusting the bilateral zoom knob. Change the eyepie-

ces and/or add an appropriate magnifying objective lens if necessary. The total magnifica-

tion used can be calculated by the following equation:

Total magnification = Eyepiece magnification x Zoom magnification x Objective lens magni-

fication

Normal working distance for the standard configuration (1x objective lens) is 95 mm.

Page 7

5.1 Available accessories

A wide range of accessories are available for the OPTIGEM microscope: gemmology clips,

an iris aperture diaphragm, a polarization analysis kit, an optical unit to switch the dark field

from a “sharp” (gem exhibition) to a “soft” (diamond analysis) mode and a translating cell

holder with vacuum pick-up and quartz immersion cells complete and enhance the instru-

ment usability.

Please contact Optika Microscopes for more information and a complete list of accessories.

Fig. 5: Accessories

4.0 USING THE MICROSCOPE

4.7 Observing objects in horizontal

position

The OPTIGEM microscope stand

can easily be tilted in order to ob-

serve objects in a horizontal position

(see fig. 4).

To do this: Loosen the lock screw of

the head and rotate the head 180°.

Fix the screw again. Loosen the til-

ting knob (counter clockwise) and ro-

tate the stand 180° (make sure that

the power cable has not been win-

ded too many turns around the base)

lean it backwards until it gets stopped

by the support and the microscope is

in the position of figure 4.

Fig. 4: Horizontal position

5.0 OPTIONAL ACCESSORIES

Page 8

5.2 Video capturing (optional)

The OPTIGEM is fitted with a trinocular stereo head. The third port can be connected to ca-

meras (in some cases via an adaptor) for digital and analogical photo and video capturing.

Before taking a picture or filming video, pull out the light path selector lever so the light will

be deflected into the photo tube. At the same time, no light will enter into the left eyepiece

tube for observation. Please refer to the adaptor and camera manuals for further details.

5.3 Assembling the accessories plates (optional)

All the accessories can be assembled one and one or combined in a stack, in any order,

both when the microscope is being used as a horizontal unit and when it is in its vertical

configuration (see fig. 6-9).

This is made by attaching the plate/s to the two holes in the stage plate and fixing them with

the included screws and spacers.

The polarizing analysis kit comes with a polarizer and an analyser. The polarizer should be

mounted on the stage as explained above and the analyser should be screwed onto the

objective holder of the stereo head, first removing the ring that is already attached.

For more information about using the optional accessories, please see Appendix 1.

Fig. 6: iris aperture

Diaphragm For Dark

FieLD use

Fig. 7: poLarizing

anaLysis kit

Fig. 8: transLating

ceLL hoLDer with

vacuum pick-up anD

quartz immersion

ceLL

Fig. 9: transLating

ceLL hoLDer in use

with Dark FieLD iL-

Lumination

5.0 OPTIONAL ACCESSORIES

Page 9

6.0 MAINTENANCE

6.1 Microscopy environment

This microscope is recommended to be used in a clean, dry and shock free environment

with a temperature of 0-40°C and a maximum relative humidity of 85 % (non condensing).

Use a dehumidifier if needed.

6.2 To think about when and after using the microscope

•The microscope should always be held formly when moving it. Take care that no

moving parts, such as the eyepieces, fall out.

•Never mishandle or impose unnecessary force on the microscope.

•Never attempt to service the microscope yourself.

•After use, turn off the light immediately, cover the microscope with the included dust-

cover, and keep it in a dry and clean place.

6.3 Electrical safety precautions

•Before plugging in the power cord with the supply, make sure that the supplying voltage of

your region matches with the operation voltage of the equipment and that the lamp switch is

in off-position.

•Users should observe all safety regulations of the region. The equipment has acquired the

CE safety label. However, users do have full responsibility to use this equipment safely.

6.4 Cleaning the optics

•If the optical parts need to be cleaned try first to: use compressed air.

•If that is not sufficient: use a soft lint-free piece of cloth with water and a mild detergent.

•And as a final option: use the piece of cloth moistened with a 3:7 mixture of ethanol and

ether.

Note: ethanol and ether are highly flammable liquids. Do not use them near a heat source,

near sparks or near electric equipment. Use these chemicals in a well ventilated room.

•Remember never to wipe the surface of any optical items with your hands. Fingerprints can

damage the optics.

•Do not disassemble objectives or eyepieces in attempt to clean them.

Universal Power Transformer: Input: 230 V, 50 Hz

Output: 12V DC, 1000 mA

Bulbs: High power LEDs

7.0 TECHNICAL SPECIFICATIONS

Page 10

8.0 RECOVERY AND RECYCLING

Art.13 Dlsg 25 july 2005 N°151. “According to directives 2002/95/EC, 2002/96/EC and 2003/108/EC

relating to the reduction in the use of hazardous substances in electrical and electronic equipment

and waste disposal.”

The basket symbol on equipment or on its box indicates that the product at the end of its useful life

should be collected separately from other waste.

The separate collection of this equipment at the end of its lifetime is organized and managed by

the producer. The user will have to contact the manufacturer and follow the rules that he adopted

for end-of-life equipment collection. The collection of the equipment for recycling, treatment and en-

vironmentally compatible disposal, helps to prevent possible adverse effects on the environment

and health and promotes reuse and/or recycling of materials of the equipment. Improper disposal

of the product involves the application of administrative penalties as provided by the laws in force.

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