Government College

Government College has published Supply Of Petrological Microscopes Supply Of Petrological Microscopes , Supply Of Petrological Microscopes To Geology Department , Petrological Microscopes A Microscope (Mono Ocular)For Visualising Objects (Thin Sections)In Transmittedpolarisedlight. Illumination By Plano Concave Mirror.Coarsefocussing Adjustmenteffectedby Rack And Pinion,Fine Focussing Adjustment FromBoth Sides With Graduated Right Drum,Each Division Equals 2/1000MmTriple / Quadruple Revolving Ball Bearingtype Self Centered Nosepiece.Circular Centering Rotatable Stage Withdegree Calibration,With Two Lens Aplanatic AbbeCondenser With Rotatable Polariser Mount Having 15 Degree Calibration. Analyserprovided In A Slide, Which Can Be Swungin And Out Ofthe Microscope Tube. The Polaraids Should Be Of Highgrade And Have Good Performance.It Should Be Equipped With A Bertrand Lens Which Can Be Swung In And Out, With A SlotSize 12Mm X 4Mm Provided In The Tube At 45 Degree To The Polarizeraxisfor Compensators. It Must Have 3 Objectives (Self Centred And Strain Free) / 5X, 10X & 40X Of Own Make (Superior), 2Hughenian Eyepiece 10X (Cross Hair) & 15X.Microscope Body With Circular Stage & Swing Out Polarizer, Analyzer Unit, Bertrand Lens Plate, Accessory Slot.Cleaning Cloth, Dust Cover, Wooden Box , Polarizing Microscope Observation Mode: Bright Field, Transmitted Polarized Light And Conoscopy.Bertrand Lens And Polarizing Attachment: Swing-Out Type With Centering Mechanism For Observation In Conoscopy/Orthoscopy. Rotatable Analyzer From 0° To 90° With Graduated Scale. Tint Plates: 1° Order Red (?); ?/4; Quartz Wedge. Head: Trinocular (Fixed 50/50), 30° Inclined, 360° Rotating. Interpupillary Distance: Adjustable Between 48 And 75 Mm. Dioptric Adjustment: On The Left Eyepiece Tube. Eyepieces: Wf10x/20 Mm, High Eye-Point And Secured By Screw. One With Crosshair. Nosepiece: Quadruple Revolving Nosepiece, Rotation On Ball Bearings. Centering System For Each Objective. Objectives (Strain-Free):Ios N-Plan Pol 4X/0.10, Ios N-Plan Pol 10X/0.25Ios N-Plan Pol 40X/0.65, Ios N-Plan Pol 60X/0.80All With Anti-Fungus Treatment. Specimen Stage : Rotatable Stage With Locking Mechanism. Vernier Scale With Accuracy 0.1 Mm. Diameter 160 Mm. Specimen Slide Clamps.Focusing : Coaxial Coarse (Adjustable Tension) And Fine Focusing Mechanism With Limit Stop To Prevent The Contact Between Objective And Specimen. Condenser : Abbe N.A. 1.25, With Objective-Coded Iris Diaphragm, Focusable And Centerable. With Rotating Polarizing Filter. Transmitted Illumination (Fixed Koehler Type):X-Led3with White 3.6 W Led (6.300 K) With Brightness Controls. Multi-Plug 100-240Vac/6Vdc External Power Supply. With Life 60,000 Working Hours With Solar Power BackupBattery Type -Polymer Lithium-Ion Capacity- 2500 Mah Input Voltage 5 Vdc (Connect Via Usb/Micro-Usb Cable To An External Usb Power Supply) Output 5 Vdc (Provided With Usb/Jack 2.1 Mm Cable For Microscope Connection) Charging Time About 2.5 Hours Battery Operating Time Over 6 Hours At Medium Intensity (X-Led3 ) Solar Panel Output 80 Ma (At 1000 W/M2 Light) Working Temperature -10°C ~ +55°C , Polarizing Microscope With Reflected & Transmitted Light For Research Purpose1) Polorizing Microscope With With 4-Position Individually Centerable Nosepiece For Exact Centration OfEach Objective To The Stage Rotation Axis, For Quick And Easy Change Of Magnification.2) Koehler Lllumination, Polarizer For Transmitted Light And Add On Lens For Condensers.3) Universal Power Supply Plus Usb Power With Integrated Connector4) Large 178 Mm Diameter Stage For Easy Specimen Placement And Viewing Of Calibrations Circular Rotating Stage With Graduations And Adjustable Brake5) Led Illumination, Auto Off, Built In Handle And Cord Wrap,6) 30 Degree Binocular Pol Tube With Eyepiece Locking Mechanism, Orientation Key In Right Eye Tube For The Crosshair Reticle Eyepiece,7) 1Ox/20 Focusing Eyepiece W/Eyeguard, 10X/20 Focusing Eyepiece With Eye Guard And Crosshair ReticleAnd Pin For Orientation,8) Suitable Object Guide For Stage9) Analyzer/Bertrand Lens Module,10) Microscope Should Have Facility To Store The Compensators And Centring Tools In The Body11) Pol Abbe Condenser 0.85 Na,12) Objectives: N Plan Epi 1Ox/0.25 Pol , N Plan Epi 2Oxio.4O Pol, N Plan Epi 50X/0.75 Pol13) Objective Centering Tools, 2 Object Clamps, Dust Cover, User Manual Cd, And Power Cord14) Auto Shutoff Function After 2 Hours Of No Use15) Built In Handle And Cord Wrap . Objective Centring Tools16) The Microscope Should Have Handle And Under Cut In The Front So That It Can Be Carried From One Place To Other17) Reflected Light Illumination With Polarizer And Analyzer18) Microscope Should Be Equipped With Trinocular Tube For Attaching The Digital Camera19) Digital Camera To Be Attached With The Microscope And With Below Specifications - 1 NoDigital Color Camera With Cmos Sensor (1/2) Lmage Format 2048 X 1536 Pixel, 3.Lmpixels Or More Dual Mode ( Both Monochrome & Color ) Fast Live Image Xga 1024 X 768 With 30 Fps ,Pixelsize 3.2Pm X 3.2Pm Fast Usb-3 Connection, Single Cable With Screw LockCompactable Software For Image Acquisition Full Control Of Camera Features (Exposure Gain, Gamma And Saturation)Microscope, Camera And Software Should Be From Single Manufacturer For Better Synchronisation& Performance. Last date of submission for this tender is 2021-12-18. This is a Cleaning Rags And Cloths tender in Govt. College Kasaragod, Kerala