We offer multiple forms of anti-reflection thin film coatings. The general coating we define as Anti-Reflection is a thin film deposited on a substrate that brings the reflection from the substrate down from its original value at the desired wavelength. In addition we can engineer coatings that yield lower reflection or cover wider ranges.

Ultra low AR coatings are high performance anti-reflection coatings. An area of Helia expertise, our ULAR thin film coatings are characterised by having ≤0.1% of incident light reflected.

Following from protected metal mirrors, enhanced metallic mirrors are metallic mirrors with a dielectric HR coating stacked on top. This gives a broad wavelength performance and protection to the mirror.

Optical coating process

Plan IOS objectives are a type of microscope objective lens that is commonly used in high-quality research and medical microscopes. "Plan" refers to the fact that these objectives have been designed with a flat field of view, meaning that the image appears sharp and in focus across the entire field of view.

Feb 24, 2019 — If it is not marked, you can determine the magnification by dividing the total magnification by the magnification of the objective lens. For ...

Plan PLPOLRI IOS objectives are a type of microscope objective lens that combines the benefits of polarized light microscopy and infinity-corrected optics. "Plan" refers to the flat field of view provided by the lens, while "IOS" stands for infinity-corrected optical system, which allows for the manipulation and adjustment of the image without sacrificing quality.

Plan IOS objectives are available in a variety of magnifications and numerical apertures, which determine the amount of light that can be collected and the resolving power of the lens. They are often used in conjunction with other high-quality microscope components, such as fluorescence filters, to produce detailed and accurate images.

Vertically polarized light is preferentially refracted at the surface, so that the reflected light is left more horizontally polarized. The reasons for this ...

Plan PH IOS objectives are commonly used in medical and biological research, as well as in clinical settings, for the examination of biological specimens that require both phase contrast and fluorescence imaging. They are particularly useful for the observation of living cells, bacteria, and other microorganisms in real-time and in their natural state, as they allow for the visualization of both structural and functional information simultaneously.

A metal mirror is an HR coating formed by depositing a metal. Commonly used metals are silver, aluminium and rhodium. They can be engineered to have peak reflectivity at the wavelength of interest. However, due to the reactivity of the metals they should be used in inert environments.

Plan PH IOS objectives are available in a range of magnifications and numerical apertures, and are often used in conjunction with other high-quality microscope components, such as high-resolution cameras, to produce detailed and accurate images.

Protected metal mirrors are almost identical to metal mirrors as above. The difference, however, is that a protective layer is deposited on the surface of the mirror. This prevents the reactivity issue described above, and offers some physical resistance against sleeks, scratches and chips.

Jan 1, 2017 — I recommend using a 10X objective. This will give you 400X with the 40X objective. To use the 100X objective, you will need to insert a drop of ...

Plan Fluarex IOS objectives are a type of microscope objective lens that combines the benefits of infinity-corrected optics and fluorescence microscopy. "Plan" refers to the flat field of view provided by the lens, while "IOS" stands for infinity-corrected optical system, which allows for the manipulation and adjustment of the image without sacrificing quality.

Plan Achromatic objectives are designed to produce high-quality images with high contrast and resolution, even at high magnifications. They are often used for observing biological specimens, such as tissue samples or microorganisms, and are particularly useful for applications where accurate color reproduction is important.

"Fluarex" refers to the fact that these objectives are designed for fluorescence microscopy, which is a technique used to observe fluorescent materials. Fluorescent materials absorb light at one wavelength and emit light at a longer wavelength, which can be visualized using fluorescence microscopy.

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The "E" in E-Plan stands for "excellent," which reflects the high quality of this objective lens. The flat field of view means that the entire image is in focus, even at the edges of the field of view. The high NA allows for high-resolution imaging with good contrast, particularly in low light conditions.

Plan Achromatic objectives are a type of microscope objective lens that is commonly used in research and clinical settings for high-quality imaging of biological specimens. "Plan" refers to the fact that these objectives have a flat field of view, meaning that the image appears sharp and in focus across the entire field of view. "Achromatic" refers to the lens's ability to produce images with little or no chromatic aberration, meaning that colors are not distorted or blurred.

Our HEHR coatings are designed for customers looking for a higher reflectivity than our standard HR coatings. We define our HEHR coatings as having ≥97% reflectivity.

Reflective coating paint

Plan Fluarex IOS objectives are commonly used in biological and medical research for the observation of fluorescently-labeled samples. They are particularly useful for the observation of living cells and tissues, as they allow for the visualization of specific molecules and structures within the sample.

Microscope objectives are a key component of a microscope that are used to magnify and resolve the specimen being viewed. They are typically located near the bottom of the microscope's body tube and consist of a series of lenses that are carefully designed to achieve specific magnification levels and optical properties.

In addition, Plan Phase IOS objectives include a phase plate that introduces a phase shift to the light passing through the specimen. This phase shift allows for the visualization of transparent or semi-transparent specimens, such as living cells, that would otherwise be difficult to see with traditional brightfield microscopy.

Ar coating

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Plan IOS objectives are commonly used in applications where high resolution and clarity are required, such as in medical research, metallurgical analysis, and materials science. They offer a high degree of chromatic and spherical aberration correction, which helps to produce clear, accurate images even at high magnifications.

Ultra-mirror coatings are another area of Helia expertise. These extreme performance coatings are classed as having at least 99.99% reflectivity, making them outstanding mirrors for low loss systems.

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Higher numerical aperture lenses typically have a higher magnification and a narrower field of view, while lower numerical aperture lenses have a wider field of view and lower magnification. Objective lenses can also be designed for specific types of microscopy, such as phase contrast or fluorescence microscopy, depending on the intended application.

E-Plan IOS objectives are commonly used in a variety of biological and medical imaging applications, such as in the examination of cell cultures or tissue sections. They are particularly well-suited for imaging large, flat specimens, as the flat field of view ensures that the entire sample is in focus.

Plan PH IOS objectives are a type of microscope objective lens that combines the benefits of plan and phase contrast microscopy with the ability to observe fluorescent samples. "Plan" refers to the flat field of view provided by the lens, and "IOS" stands for infinity-corrected optical system, which allows for the manipulation and adjustment of the image without sacrificing quality.

Plan PLPOLRI IOS objectives are available in a range of magnifications and numerical apertures and can be used in conjunction with other high-quality microscope components, such as polarizers and compensators, to produce detailed and accurate images of birefringent materials.

Plan PLPOLRI IOS objectives are commonly used in materials science, geology, and biology for the observation of materials with birefringent properties. They are particularly useful for the observation of minerals, fibers, and biological tissues, and can provide detailed information about the material's optical properties.

Plan Phase IOS objectives are available in a variety of magnifications and numerical apertures, and can be used in combination with other high-quality microscope components, such as fluorescence filters, to produce detailed and accurate images.

Anti reflection coating

Plan Phase IOS objectives are commonly used in biological and medical research, as well as in clinical settings, for the examination of biological specimens that are difficult to see with traditional brightfield microscopy. They can be used to visualize cells, bacteria, and other microorganisms in real-time and in their natural state, without the need for staining or other sample preparation techniques.

"PH" stands for phase contrast and fluorescence, which means that the lens is capable of both phase contrast and fluorescence microscopy. This is achieved through the use of a phase ring and a filter cube that allows the observer to switch between phase contrast and fluorescence modes.

Short-wave pass filters are designed to transmit light with wavelengths lower than a chosen wavelength and block light with a longer wavelength. For example one could design a filter to block visible light and transmit ultra-violet, with the cut off wavelength at 400nm.

High reflective coating

"IOS" stands for "Infinity Optical System," which refers to the design of the microscope system that uses infinity-corrected optics. With this system, the objective lens is designed to produce an intermediate image at infinity, which allows other components of the microscope to manipulate and adjust the image without interfering with the quality.

Notch filters are used when transmission in all but a few bands is desired. Notch filters can be formed so that, for instance, all of the visible spectrum is transmitted except the blue and orange regions.

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Thermal Lensing Phenomena 1: Arm. Cavity Mode Shape and Loss. ○ Heating in the bulk and coating of the test masses deforms the arm cavity reflective surfaces.

In many coatings, layers of dielectrics are stacked on top of each other. This can cause a step change in the Standing Wave Voltage Ratio (SWVR) of the electric field at the boundary of two layers. If this needs to be avoided, Rugate filters are employed.

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Induced transmission filters are generally used when one wishes to pass visible light but block or reduce thermal radiation. This is achieved by designing IT filters so that they transmit in the visible region and reject infrared radiation.

As with our AR range, we offer many different types of HR coatings. We find many of our customers require back-facet coatings that give 90% reflectivity, allowing the output to be monitored from behind. We can also engineer coatings to allow for active characterisation of device performance. As such our standard HR coatings have ≥90% reflectivity.

Each objective has a different magnification power, ranging from low magnification (2x-10x) to high magnification (40x-100x or more), and can be interchanged to suit the user's needs. The magnification power of an objective lens is usually indicated by a number printed on its casing, known as the "numerical aperture" (NA).

We define our broad-band AR coatings as AR coatings as above, but the anti-reflection is not just at one target wavelength. Rather, it is spread across a range of wavelengths ≥100nm wide.

Plan Fluarex IOS objectives are available in a range of magnifications and numerical apertures and can be used in conjunction with other high-quality microscope components, such as filter cubes and high-resolution cameras, to produce detailed and accurate images of fluorescent samples. They are an important tool in the study of cellular processes and the development of new therapies for diseases.

The E-Plan IOS is a type of infinity-corrected objective lens that has a flat field of view and a high numerical aperture (NA). The "IOS" in the name stands for "infinity optical system," which means that it is designed to work with an infinity-corrected microscope, which allows for additional optical components to be added to the system without affecting the image quality.

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Adaptive Optics (AO) was originally developed for the field of Astronomy to remove image blurring aberrations induced by wavefronts propagating through Earth's ...

"PLPOLRI" refers to the fact that these objectives are designed for polarized light microscopy, which is a technique used to observe the birefringent properties of materials. Birefringence occurs when light passes through certain materials, such as crystals or biological tissues, causing the light waves to split into two perpendicular waves with different refractive indices. This can be visualized using polarized light microscopy, which uses polarizers to selectively block or pass polarized light waves.

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Long-wave pass filters are similar to short-wave pass filters except, as the name suggests, they pass longer wavelengths and block shorter ones.

Plan Phase IOS objectives are a type of microscope objective lens that combines the benefits of plan and phase contrast microscopy. Like Plan IOS objectives, they are designed to produce a flat field of view and use infinity-corrected optics to produce high-resolution, high-contrast images.

Our band pass filters transmit light within a certain waveband and reject all other nearby wavelengths. These filters can be either wide band pass, around 100nm wide, or narrow pass which have width ≤10nm.

Plan Achromatic objectives are available in a range of magnifications and numerical apertures, and can be used in conjunction with other high-quality microscope components, such as filters and cameras, to produce detailed and accurate images. They are commonly used in research and clinical settings for a variety of applications, including pathology, hematology, and microbiology.