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Soda Lime Glass is the most common substrate used for targets, due to its good quality/price ratio. The glass is optically good, very flat and has no imperfections. It transmits  a very wide variety of light sources from 350nm upwards, with an excellent UV transparency. Soda Lime glass has a thermal co-efficient expansion of 93 (10-7) which is approximately 10 ppm (parts per million) , and a transmittance value of 88% at 375-750nm, with a glass flatness class of 5um White Diffuser Glass  is a semi-opaque soda lime glass , which acts like a diffuser designed to create even illumination profiles. Unlike alternative materials, which create their diffusive properties through a coating or lamination process, the White Diffusing Glass is a solid diffuse material (30% transmission), allowing it to be used in any orientation. Because the surfaces are polished, the reflected light will be somewhat specular, while the transmitted light will be near-Lambertian. White Diffusing Glass is ideal for creating even illumination as an attenuator or as a viewing screen. The material has been double sided polished, with a glass flatness class of 2um. Anti Glare spray coatings can be applied to the surface to reduce reflectivity when used with reflected light.

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A: Yes. Our standard products are Low Reflective Chrome on Soda Lie glass or Polyester Film - but we can offer different base material (Quartz, Borofloat etc) and different masking materials (Aluminium, ITO, Gold etc), as well as simply different thicknesses of glass. There will be minimum order quantities for most of these special materials.

A: Yes ....The patterns here are standard products, but we can certainly transfer almost any design to the slide (Note the price will change accordingly)

If you are interested in buying various types of objective lenses for your microscope in the classroom, laboratory, research facility, or any other purpose, ACCU-SCOPE can provide the products you are looking for. Contact us today to learn more about our objective lenses and other microscope accessories.

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TURNAROUNDOur standard production turnaround is 3 days from receipt of order. We can offer faster services if required for more urgent orders.

A scanning objective lens provides the lowest magnification power of all objective lenses. 4x is a common magnification for scanning objectives and, when combined with the magnification power of a 10x eyepiece lens, a 4x scanning objective lens gives a total magnification of 40x. The name “scanning” objective lens comes from the fact that they provide observers with about enough magnification for a good overview of the slide, essentially a “scan” of the slide. Some objectives with even lower power are discussed in Specialty Objectives below.

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A: Certainly, we have higher resolution graphics that we can email you. Please contact us via the Live Support or by Email.

Most compound microscopes come with interchangeable lenses known as objective lenses. Objective lenses come in various magnification powers, with the most common being 4x, 10x, 40x, and 100x, also known as scanning, low power, high power, and (typically) oil immersion objectives, respectively. Let’s take a closer look at each of the different magnifications of objective lenses and when you would use them.

INSPECTIONSTANDARD:   We inspect the piece by eye for flaws, design inaccuracies and contaminations. We measure the design to check that it conforms to the specifications, and record both of these measurements on our internal inspection records. Finally, we find the CD of the mask, measure that, record it, and also take a digital photo that is saved with the inspection log. We use Nikon MM40 at 900x magnification and an OGP ZIP 300 at 400 x magnifications for this.CERTIFIED:   In addition to the standard inspection process described above, we will then document them via a Certificate of Conformance  - or measurement certificate - which we supply with the target. Tolerances are per our standard tolerances.

There are several other objective lens magnifications available with utility for particular applications. The 2x objective, widely used in pathology, has only ½ the magnification of a 4x scanning lens, thus providing a better overview of the sample on the slide. The 50x oil immersion objective, often used in place of the 40x objective, is used as a gold standard for observing blood smears. The 60x objective, often available in either dry or oil immersion, provides 50% greater magnification than a 40x lens. The 60x dry is sometimes chosen over a 100x oil immersion lens for higher magnification without the need to use immersion oil.  Finally the 100x dry objective doesn’t need immersion oil to deliver high magnification (still 1000x when combined with 10x eyepieces). However, the numerical aperture (an indication of resolving power of an objective) of a 100x dry objective is much lower than that of a 100x oil immersion objective and, as a result, the ability of the lens to resolve fine details in the specimen is much lower, too.

The oil immersion objective lens provides the most powerful magnification, with a whopping magnification total of 1000x when combined with a 10x eyepiece. But the refractive index of air and your glass slide are slightly different, so a special immersion oil must be used to help bridge the gap. Without adding a drop of immersion oil, the oil immersion objective lens will not function correctly, the specimen will appear blurry, and you will not achieve an ideal magnification or resolution. Oil immersion lenses are also available from some manufacturers in lower magnifications, and provide higher resolution than their "high dry" counterparts.

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It is important to always use the correct immersion media (e.g. air, water, oil, etc.) that is specified by your objective lens.

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PATTERN DESCRITIONThere are 4 different patterns to choose from, each having a different spoke count. The outer diemater of the pattern is 2" / 50mm. Each pattern has an clear centre

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A: Typically we have these products in stock on the shelf - however, it may take upto 5 days before they are dispatched. If you need the product more urgently, please contact us direct and we will do our best !

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The low power objective lens has more magnification power than the scanning objective lens, and it is one of the most helpful lenses when it comes to observing and analyzing glass slide samples. The total magnification of a low power objective lens combined with a 10x eyepiece lens is 100x magnification, giving you a closer view of the slide than a scanning objective lens without getting too close for general viewing purposes.

Please see the TECHNICAL sections, DOWNLOAD sections and FAQ for further information. If you still require clarification, please either email or click for LIVE SUPPORT.

Soda Lime Glass is the most common substrate used for masks, due to its good quality/price ratio. The glass is optically good, very flat and has no imperfections. If used in a photo-lithographic process, glass can be used with a very wide variety of light sources from 350nm upwards, with an excellent UV transparency. Soda Lime glass has a thermal co-efficient expansion of 93 (10-7) which is approximately 10 ppm (parts per million) , and a transmittance value of 88% at 375-450nm, with a glass flatness class of 5um for the smaller plates and 10um for the larger plates. Some of the very big plates of 14" and above, may have a bigger flatness tolerance.

A Siemens star is a device used to test the resolution of an Optical instrument. It consists of a pattern of bright "spokes" on a dark background that radiate from a common center and become wider as they get further from it. It is used to identify the aberration of the optical system - determining the resolution of an optical system by noting how close to the center of the pattern an optical system is able to resolve adjacent bars

The high-powered objective lens (also called “high dry” lens) is ideal for observing fine details within a specimen sample. The total magnification of a high-power objective lens combined with a 10x eyepiece is equal to 400x magnification, giving you a very detailed picture of the specimen in your slide.