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Know the Working of Lab Water Chiller

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Water, ice, dry ice and liquid nitrogen are the sources of cooling in the laboratory for decades. The introduction of lab water chiller has replaced these conventional cooling sources. It has provided the easy and convenient way for cooling liquids and reagents. There are different types of chillers like rackmount, benchtop, portable, and Lab Mini Chiller . All the chillers have the same working principle but differ from each other on the basis of situation like water source, space and the environment. Working of lab water chiller: The working of lab water chiller is to remove heat from the object thus lowering its temperature. Generally, the chiller uses water as the coolant that is used to transfer the heat from one object to another. The basic principle of the chiller involves vapor-compression or absorption-refrigeration cycle. The working cycle of the chiller is described in the following steps : Refrigeration: The process of chilling starts with the proce
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How to Choose Integrating Sphere

Integrating Sphere system fulfills two important parts; one for measuring and analysis and other is the assistant part that provides testing environmental. While choosing an integrating sphere always consider the size of the lamp, type of lamp and the reflectance material used in the sphere. Most of the integrating sphere comes with some additional interchangeable features for the light source, assemblies, and post reducers. This makes it perfect for the use of various applications. Integrating sphere from Labsphere is perfectly designed having a port frame, easy access mounting options, and quick change accessory options. This design meets your maximum requirements. Size of the integrating sphere: The diameter of the integrating sphere ranges from several centimeters to several meters. The lighting industry uses the integrating sphere of the size from 0.3 m to 4 m. The sphere of size 0.3m to 0.5 m is used to test single LED whole of size 1 m is used to test LED bulb,
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Collimating Lens from Throlabs for LED

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LED has a small protective dome over the diode that is commonly known as the primary optic that serves to protect and shape the output of the small diode. But light from the primary optic of the LED is broad for most application and lacks intensity for long distance. To reduce this drawback LED fixtures use secondary fixtures like collimating lens from Thorlabs or other labs, reflectors, TIR optics etc that collects light and magnifies its intensity towards the target. If you wish to create lenses and reflectors for LEDs, then you need to use some logical ways apart from just scaling them down from the light source. This is because LED has much smaller form factors than other light sources and also differs in the way it emits light . Use of collimating lens in LED          The collimating lens of the LED undergoes the process of Total Internal Reflection or TIR. TIR is defined as the complete reflection of a ray of light within a medium such as water or glass from the
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Location: Australia
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General Description of Light Sources

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Light sources are needed for transmission, absorption and reflection spectroscopic setups. To couple, the light conveniently with the fiber optic bundles, bundles and probes it is essential to collect the light and couple it through SMA-905 connectors. There are different light sources like Tungsten-Halogen light source, Deuterium-Halogen Light Source , LED, Mercury-Argon etc that have different application and wavelength ranges. Tungsten-halogen light source provides stable output and is used in the visible range to do color measurements. Halogen light provides stable output and its life depends on the color and temperature of the bulb. The high stability of halogen light source makes it suitable for the use as a color reflection illumination source and as an irradiance calibration light source. Deuterium light source is found in combination with halogen and is called Deuterium-Halogen Light Source . It provides a stable output and is used in UV-absorption or reflection
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Location: Australia
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Importance of Collimating Lens

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The collimator is a device that changes the diverging light or other radiations from a point source into a parallel beam. This specific feature of the device makes it an important part in spectroscopy and geometric and physical optics. An optical collimator consists of a tube with a convex lens at one end and an adjustable aperture at the other. The collimating lens of Thorlabs inside the collimator produces rays into the parallel beam so that the image can be viewed without parallax. Uses of Collimating Lens The collimating lens of Thorlabs or other labs is curved optical lenses that are used by the user to control the field of view, collection efficiency and spatial resolution of their setups. It is also used to configure illumination and collection angles for sampling. Use of Collimating Lenses in Radiology The collimator lens is also used in radiology where a collimator is an arrangement of absorbers for limiting beam of X-rays, gamma rays, or nuclear par
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Location: Australia
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Metallic Mirror Coating

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Different types of parabolic, spherical, and flat mirrors are produced having different types of mirror substrates . These products have a variety of metallic and dielectric coatings that make them suitable for various applications. The various types of mirror coatings include Protected Aluminum, Enhanced Aluminum, UV Enhanced Aluminum, Bare Gold, and Protected Gold etc that are used for visible applications. UV and DUV enhanced aluminum is used for UV and visible applications while Bare and Protected Gold offer high reflectance for near Infrared and Infrared Wavelength. First Surface and Second Surface Mirrors All the mirrors you use are first surface mirrors. This mirror has a high reflectance coating deposited on the front surface of a variety of different types of glass, metal or semiconductor substrates. The other surface of the mirror may be clear or ground and the mirror is oriented so that the coating faces the source. They are widely used in precision optics ap
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Location: Australia
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Learn How to Couple Optic Fiber with LED and Sensors

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Fiber optics or optical fiber refers to the medium and the technology associated with the transmission of information as the light pulses along a glass or plastic strand or fiber. The central core to the fiber is surrounded by a cladding and a protective coating. Ones the light is injected into the core it remains trapped into it until emerged from the opposite end; this is because the cladding has a slightly higher index of refraction than the core. The sensors, illuminators, and toys make use of inexpensive plastic fibers. The environment that requires electrical isolation or protection from the elements uses fiber coupled LED . Coupling of Optical Fibers to LEDs and Sensors Although many fiber couplers are available for various LEDs and light sensors one can connect silica and plastic fibers directly to LEDs and sensors. Here are different methods used to produce fiber coupled LED and sensors. Preparing the Fiber Ends To obtain the best results use the plast
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