Zero order waveplates A quarter-or half-wave retarder made from two plates of quartz with their fast axes crossed; the difference in thickness between the two plates determines the retardance. Zero-order retarders provide accurate retardance over a broad range of wavelengths and dance over a broad range of wavelengths and are more durable than single-element retarders. Cemented zero-order waveplates Cemented zero-order waveplate is constructed of two multi-order waveplates with their axis crossed. Thus, it performs as a zero-order waveplate because of the effect of two plates counteracting each other. It has wide temperature bandwidth and wavelength bandwidth properties. Because it is cemented, the dama zge threshold must be considered (about 10mw/cm2) when used. Key features: - double plates - broad spectral bandwidth - wide temperature bandwidth - ar coated Technical capability Material: Crystal quartz Dimension tolerance: +0.0, -0.2mm Wavefront distortion: λ/4 @ 632.8mm Retardation tolerance:
Waveplates Waveplates, also known as retardation plates, are optical element having two principal axes slow and fast, that resolve an incident polarized beam into two mutually perpendicular polarized beams. The emerging beam recombines to form a particular single polarized beam. Retardations plates produce full, half, quarter and octadic-wave retardations. Low order waveplates The properties of low order waveplates are much better than the multi-order wave-plates because of its thinner thickness (less than 0.5mm). Better temperature (38), wavelength (1.5nm) and incident angle (4.5�) bandwidth and high damage threshold make it widely used in common application. Also it is economical. Key features: -thickness: 0.2-0.5mm -high damage threshold -better temperature bandwidth -low cost Technical capability Material:crystal quartz Dimension tolerance:+0.0, -0.1mm Wavefront distortion:/8 Retardation tolerance:/500 Wavelength range:240-2100nm Parallelism:< 1 arc second Surface quality:20-10 scratch & dig Coating:ar/ar coating, r < 0.2% on both surface at central wavelength
The true zero order waveplate means that the thickness of waveplate is very thin (less than 0.1mm) which make the true zero order waveplate excellent in temperature, wavelength and incident angle (about 20) bandwidth. Therefore, it is excellent choice for the highly accurate application. It is cemented with a block of glass which is limited to low and medium power application. Key features: - broad spectral bandwidth - wide temperature bandwidth - wide angle bandwidth - cemented by epoxy Technical capability Material: Crystal quartz / bk7 optical glass Dimension tolerance: +0.0, -0.1mm Wavefront distortion: 8 @ 632.8nm Retardation tolerance: 500 Wavelength range: 400-2100nm Parallelism: < 1 arc second Surface quality: 20-10 scratch & dig Coating: Ar/ar coating, r < 0.2% on both surface at central wavelength
Cylindrical lenses are either plano-convex or plano-concave in form and rectangular in shape. These lenses are used in applications requiring magnification only, such as in transforming a point image into a line image or changing the height of an image without changing its width or vice versa. Therefore serves a variety application, such as slit line detector array illumination, bar code scanning, holography, optical information processing and computer, laser projection. Capability Material: optical glass, fused silic Dimension: 1 - 500mm Dimension tolerance: + / - 0.02mm Centration: 3 arc minutes Wedge: < 5 mrad Surface quality: up to 10-5 Surface accuracy: x -4 Clear aperture: > 90% Coating: according to the requirement
WDW Series Universal Electromechanical Universal Testing Machine It is computer-controlled precision Testing Machine, suitable for wide range of material for tension, compression, Bending and shearing test. It has high stability as well as high precision, equipped with PC system & printer for graph, test result display, printing & data processing. Complete with modulus for metal, spring, textile, rubber, plastic and other material testing & creep test. It is widely used in many fields such as industry factories, mineral enterprise and high schools. Applied Standard Load meets or exceeds the following standards: ASTM E4, ISO7500-1, EN 10002-2, BS1610, DIN 51221. Strain measurement meets or exceeds the following standards: ASTM E83, ISO 9513, BS 3846 and EN 10002-4. Tensile test at room temperature DIN EN 10002-1, ISO 6892, ASTM A370, ASTM E 8 Tensile test on reinforced steel: ISO 10606, EN 10080 Compression test DIN 50106, ASTM E9
Used for testing crushed rock, crushed slag, crushed and uncrushed gravel for resistance to abrasion. Specifications: The machine consists of a hollow cylinder mounted horizontally on a study frame on ball bearings Compete with abrasive charge consisting of a set of hardened stainless steel balls, approximately 48mm dia It has an opening which can be closed with a dust tight cover to facilitate charging and discharging the drum with the material under test A revolution counter is fitted to the frame. • control panels: auto. Preset counter, stop and start push buttons. (optional at extra cost). A tray is supplied for collecting of the material at the end of the test A detachable shelf which extends throughout the inside length of the drum which catches the abrasive charge and does not allow it to fall on the cover The drum is rotated by an electric motor through a heavy reduction gear at a speed of 30-33 r.P.M Suitable for operation on 440 volts, 3 phase, 50 cycles, a.C. Supply. • all material parts are made of stainless steel except the frame. Optional accessories (optional at extra cost): • control panels: auto. Preset counter, stop and start push buttons.
Description : Optics : Fitted with Achromatic Objectives, designed as per Standards of Optical Excellence. Fully Parfocal and perfectly precentered, these Objectives give user details, never seen before. Sharper Resolution and extra flat field of view, make viewing a strain free pleasure. Coupled with wide field eyepieces. they provide a color free image. The Standard Microscope is supplied with four Semi-plan Achromatic Objectives-Achro 4x, Achro10x, Achro 40x (SL) and Achro100x Oil (SL), and a pair of WF 10x eyepiece. Observation Head : Extra clarity and high Contrast Binocular Observation tube, rotatable through 360, inclined at 45, off the Horizontal. Adjustable interpupillary eye-quality. Optionally, a 30 inclined Seidentop design Binocular tube can also be provided. Fatigue Free Focusing: Traveling on Ball slides, The Co-axial focusing system incorporates a very precise and wear resistant linear bearing mechanism that eliminates vibration and backlash. The coarse adjustment knob has a built in control to alter the tension of the motion. The touch sensitive fine focus knobs are graduated in 0.01mm increments. Large Mechanical Stage : The 150 x 120 mm Stage Plate incorporates a linear bearing mechanism with right hand low positioned CO-AXIAL movement Controls. It has a travel range of 75mm along the X Axis and 45mm along the Y-Axis for easy scanning of large specimens. A 0.1mm Vernier provides accurate location of the specimen area. Nosepiece : Precision-built (reverse type) quadruple revolving nose piece, traveling on ball beating, ensures a common field Center, on changing magnification and re-introduction. The soft ribbed grip for easy rotation helps prevent damage from gripping the objectives. Illumination Light Control: Built-in to a well contoured, a compact base, with convenient hand rests and powered by a 6V-20 watts halogen light source, the illumination system provides a bright and even illumination at any magnification. The lamp is precentered for user convenience. Replacement of lamp can be done without opening of base or electricals. Light intensity can be varied through electronically controlled knob, the illumination is further enhanced through well designed illuminator lens system and a sub stage Abbe Condenser with N.A 1.25 and built in Iris Diaphragm and Filter Holder. Optionally, the Bright Field Condenser can be easily replaced by phase Contrast Turret or Dark Field Condenser. All air-Glass Surfaces of the lenses and Prism are Anti - Reflection coated, to eliminate light losses to the maximum.
Our digital moisture meters are designed for both laboratory and field applications to test the moisture content in grains during harvesting and post-harvest storage, milling applications. Based upon conductivity / resistance measurement principles, these moisture meters incorporate multi-grain calibration to cater a wide range of applications in food grains / seed industry. Technical parameters: Range : 3.5 to 40% Accuracy :±0.2% Display :three seven segment display Principle :resistance measurement Power : six 9v dry cells or 230 volts 50 hz ac through adopter. Temperature :automatic Size : 300x170x260 mm. Approx. Weight :9.5 kg approx. Without accessories. Special features : (i) direct reading display for all commodities (ii) room temp. Display (iii) no arithmetic required. (v) rs-232 port available for interfacing printer or personal computer. Optional features: (i) separate commodity code system. (ii) auto calibration
Atomic absorption spectrophotometer comes with manual gas control system. It can work as standalone mode for routine analysis and can also be pc controlled. Salient features: •Microprocessor based, user friendly, menu driven with printer interface and optional pc attachment through rs232c interface. •Narrow beam optics fully sealed and quartz over coated mirrors. •Modes of operation include absorbance, emission and concentration. •Auto saving of all parameters & auto-bandwidth selection. •Integral gas control system with panel flow meters. •Precise knobs for vertical, horizontal and rotational alignment of titanium burner. •The software has facilities to repeat the result of the sample and data treatment. •Automatic calculation of percentage and ppm in base material. •Absorbance mode has the facility to measure sample absorbance for selected number of points and to calculate mean, sd and rsd. •Optional pc compatibility. •Microsoft windows® based software for data processing, storage, retrieval, interpretation etc. •Optional : hydride generator Software features: Microsoft windows® based pc operating software. •Easy user interface. •Linear / quadratic curve equation to predict the sample concentrations. •Modes of operation include absorbance, emission, concentration and standard addition. •Saving facility for the scanned data. Print facility for all the scanned data •Print facility for all the scanned data in graph and tabular formats. •Software is 21 cfr part 11 compliant with password method protection, instrument logbook etc Applications: •Academia & research •Soil testing •Micro nutrients •Fertilizer •Bio fertilizer •Pesticides
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Gemological microscope Magnification 10x to 60 x Original Leica lenses 10 inch x 18 inch hight
Main features 1) not only use for ftth, but also use for general project of optical fiber splicing; 2) precise optical fiber core alignment, guarantee low loss splicing ; 3) small in size , lightweight:only 2.8kg with battery; 4) takes only 8seconds for splicing, 25 seconds for pyrocondensation 5) simultaneous display of x/y axis; zoom in up to 304 times original size; 6) can set automatic start of splicing or of pyrocondensation upon close of the cover; 7) real time discharging for adjustment ;no need for further adjustment;
Hot 5x~200x wifi wireless digital microscope for mobile phone and tablet pc and laptop Wireless digital microscope (wi-fi) can magnify objects from 5x to 200x and transfer the images taking by microscope Video format:avi Photo format:bmp Light source:8 led (adjustable by control wheel) Pc charging interface: usb 2.0 & usb 1.1 Compatibleoperation system:apple & android (wifi capable mobile device) Working distance within 10m Osd language:english, chinese Bundle software:application for android Each unit in gift box 12pcs/carton carton weight:12kg gift box size: 26.5(l)*19.7(w)*5.72(h) cm
