Showing results: 271 - 285 of 481 items found.
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Edmund Optics Inc.
Through the photovoltaic effect, detectors provide a means of transforming light energy to an electrical current. The root of the theory behind this phenomenon is a small energy gap between the valence and conduction bands of the detector. When light, with enough energy to excite an electron from the valence to the conduction band, is incident upon the detector, the resulting accumulation of charge leads to a flow of current in an external circuit. Since light is not the only source of energy that can excite an electron, detectors will have some amount of current that is not representative of incident light. For example, fluctuations in thermal energy can easily be mistaken for light intensity changes. A variety of these "non-light" contributions are present and, when summed up, make up the total noise within the detector.
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SEEPOS -
SiTek Electro Optics AB
For most position measurement applications the SiTek SEEPOS system offers a complete and easy-to-use solution. High speed PSD electronics combined with digital signal processing and high speed USB data transfer gives a powerful measurement system. With its large dynamic range it can handle light powers from nW to mW from DC light sources as well as modulated light sources. All parameters, such as PSD bias voltage, amplifier gain, the use of analog and digital filters etc., are easily controlled from the included software and light spot position is continuously displayed both in XY and X-t, Y-t graphs. Optimized plot algorithms ensure that all data is visually seen on the screen even in full speed measurements. Included tools for data analysis and visualization simplify rapid scan through large data sets in order to find specific parts of interest.
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Hangzhou Hopoo Optoelectronics Technology Co., Ltd
This system uses the method of fixing the detector and rotating the lamp under test to measure the light intensity distribution of the light source or lamp under test in all directions in the space. The main shaft and the lamp shaft adopt the conductive slip ring with precious metal fiber point brush structure, which can run 360 degrees continuously without backlash for measurement. There is no need to rotate back and forth to prevent winding and never winding. According to the requirements of the measuring lamps, the system can be configured as a double-column B-β test scheme or a single-column C-γ test scheme. Used for LED lamps (semiconductor lighting), road lamps, floodlights, indoor lamps, outdoor lamps, etc. and LED, energy-saving lamps, fluorescent lamps, incandescent lamps, HID lamps and other light sources of spatial luminosity distribution
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HU-200TB-EH -
HORIBA, Ltd.
HU-200TB-EH is a laser-type turbidity meter that can measure turbidity of membrane filtered water, etc. with a resolution of 0.0001 degrees. A high-sensitivity turbidty meter with a minimum resolution of 0.0001 degrees at a measurement range of 0.0000 to 2.0000 degrees, which uses a long-lasting semiconductor laser as the light source and employs a transmission 90-degree scattering light method.This is best suited for sensitive measurement of turbidity on surface water.
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LVD2 -
Fluke Corporation
LVD2 volt light, offered by Fluke combines a non-contact AC voltage detector and LED flashlight into one easy to use pen-style design. It features dual sensitivity detection, turning blue from 1” to 5” (2.54 cm to 12.7 cm) from the source and red when at the source. The LVD2 is a CAT IV 600 V rated and is suitable for commercial and industrial applications.
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pE-300lite -
CoolLED Ltd.
CoolLED's pE-300liteis a simple white light LED illumination system that offers intense, broad-spectrum LED illumination for imaging most common fluorescent stains. The pE-300lite Light Source can be fitted directly to the microscope or specified with a liquid light guide. The system is a mercury-free alternative that is safer, more controllable, and repeatable than conventional high-pressure gas discharge illuminators. Spectral coverage is from the UV (DAPI excitation) to the Red region (Cy5 excitation). The system is perfect for hospital and regular research laboratory environments and is affordable within consumables budgets.
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VUVAS-10X -
McPherson, Inc.
A new ultraviolet spectrophotometer system for optical metrology just arrived at NASA Goddard! The VUVAS-10X spectrophotometer works best in the 90 to 160 nanometer wavelength range, also known as deep or vacuum ultraviolet (VUV) region. It uses a windowless hydrogen plasma light source and differential pump section to reach many wavelengths beyond those of conventional deuterium lamps. The source also works with other gases, or gas mixtures, for atomic spectral line emission from about 30 nanometers (double ionized Helium gas) up to the Visible light range. The new spectrophotometer system, McPherson VUVAS-10X, uses a one-meter focal length high-resolution monochromator with the special light source, scintillated detector and Model 121 goniometric sample chamber. The system is ideal for optical transmission, absorbance and specular reflectance at incident angles up to 60 degrees. This McPherson spectrophotometer system will help develop, inspect and qualify optical materials and coatings used for very high altitude and extraterrestrial space flight missions.
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FOD 1204 -
Fiber Optic Devices Ltd.
The FOD 1204 & FOD 1204H Fiber Optic Power Meters are intended for accurate measurements of up-to-date optical communication. Very small temperature and temporal variations of Loss in Fibers and Connectors. Calibration of Optical Attenuators, Light Sources etc.
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FOD1204H -
Fiber Optic Devices Ltd.
The FOD 1204 & FOD 1204H Fiber Optic Power Meters are intended for accurate measurements of up-to-date optical communication. Very small temperature and temporal variations of Loss in Fibers and Connectors. Calibration of Optical Attenuators, Light Sources etc.
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GAO Tek Inc.
Years ago, testing fiber optic connections required a fiber optic power meter and fiber optic light source. These two pieces of equipment were carried side-by-side and used together to verify a fiber optic connection was working.
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HYPERION -
Greatcell Solar
Greatcell Energy is proud to introduce its fourth series of innovative solar simulators. Hyperion IV is designed to utilise LED light sources without a focal lens in a single DOT configuration, integrated with a revolutionary head and all the drive electronics.
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mks Ophir
This sensor family provides cosine corrected irradiance measurement in W/cm² and dosage measurement in J/cm². The sensors are calibrated over their entire spectral range, and are thus ideal for irradiance and dosage measurement of UV, VIS and IR LED based light sources
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Huihong Fiber Inc
Combines the function of fiber optic power meter and fiber optic light source and the user can easily switch to choose the multi meter function via the control menu.
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R203 -
Irradian Ltd.
Most drugs and pharmaceutical compounds are required to be tested for their photostability under prolonged exposure to visible and ultra violet light.Additionally, when using fluorescing dyes in crack detection the ambient visible light levels and the intensity of the ultra violet source have to be controlled.
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ORL -
Notice
•Four functions in one•Power meter and light source•Return loss meter and insertion loss meter•3 wavelength detection(1310/1490/1550nm)•Rugged, shock and water-proof for field use•Compact size, lightweight and cost-effective•Quick and easy to operate
