Light Choppers
Intercept current or beams of radiation on a periodic basis.
See Also: Light Sources, Optical Heads
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Product
Reflective Condenser
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Reflective condensing system and focusing accessory for coupling light sources to monochromators. It uses two mirrors to focus to the entrance slit. The reflective system eliminates chromatic aberration, provides maximum spectral range, and does not require refocusing. Accessories like light choppers and filter wheels can also fit inside next to the slit. Versions with rotatable mirror available for up to four source direction.
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Product
Optical Chopper
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These high stability variable frequency optical choppers each include a set of chemically blackened photoetched chopping discs. The mini chopper is an excellent choice for applications requiring a compact package. The chopping discs come in a variety of slot apertures and allow operation. Beam diameter is limited to 0.75mm when using the 200-slot disc and 1.0mm when using the 40 slot mini disc. The easy-to-interchange blades are made of non-magnetic, half hard brass and can be used in combination. Chopping frequency is set by adjusting a ten-turn dial or by applying an external DC voltage to the BNC input. Reference output is a TTL pulse and is in-phase with chopping action. The 5 digit led display gives a direct read-out of the chopping frequency. Power: 90-130V or 180-260V; 50/60Hz; 12VA max. Power supply included. Choppers are often used together with lock-in amplifiers.
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Product
Miniature Rotating Optical Choppers
350C and 350CD
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Model 350 is a high stability variable frequency optical chopper. The basic system consists of a control unit and a chopping head. It is supplied with four chemically blacked 30 mm diameter discs. These discs are of 2, 4, 10 and 40 slots and allow operation over the frequency range 10 Hz to 10 kHz.
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Product
Indoor Lighting
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CLS LED delivers innovative indoor lighting that combines performance, atmosphere and energy efficiency. Our high-quality LED solutions are designed for a wide range of interior applications. From retail to hospitality and from offices to museums, we focus on flexibility, sustainability and superior light quality to create the perfect illumination for any indoor environment. Discover how our products can elevate your project to the next level.
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Product
Light Microscopy
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Materials Evaluation and Engineering
MEE has a variety of light microscopes with magnifications ranging from 5X to 2400X. Each microscope is connected to a camera with digital image capture for subsequent measurements and/or additional image analyses.
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Product
EXTERIOR LIGHTING
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The applications for outdoor lighting are (almost) endless. For example, lighting up facades, monuments, bridges and attractions. Or use ColourFlow fixtures as atmosphere lighting in gardens or parks. The Revo Series is specially developed for use in the most extreme conditions, at temperatures far below freezing to high temperatures in the desert. The configuration options are endless, so there is always a suitable solution available for your project.
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Product
Light Source
UVF-502S
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In combination use with the uniform exposure unit, selection of uniform irradiation area in the range of 80mm200mm is possible.
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Product
Timing Lights
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A stroboscope used to dynamically set the ignition timing of an Otto cycle or similar internal combustion engine equipped with a distributor. Modern electronically controlled passenger vehicle engines require use of a scan tool to display ignition timing.
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Product
Light Meters
LXP-2
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The digital light meter is a precision instrument used to measure illuminance (Lux, footcandle) in the field. It is meet CIE photopic spectral response. It is fully cosine corrected for the angular incidence of light. The illuminance meter is compact, tough and easy to handle owing to its construction. The light sensitive component used in the meter is a very stable, long-life silicon photo diode and spectral response filter.
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Product
Light Meter
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Ideal for measuring mercury, xenon, metal halide or fluorescent lamps, commonly used for studies in the UVA region, as well as sunlight.
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Product
Light Sources
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Excelitas offers an array of illumination and lighting technologies with custom design capabilities aligned with customer requirements to deliver an illumination solution optimized to your specifications. From simply supplying a discrete LED, Laser, Lamp or UVC source to providing a complete, integrated system, Excelitas consistently delivers lighting solutions for the most demanding applications.
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Product
Light Shaping
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VirtualLab Fusion supports light shaping by freeform surfaces, diffractive beam splitters and pattern generators, diffusers, and general arrays of micro-optical components, including, but not limited to, micro-lens arrays.
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Product
Cameras and Lights
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MacArtney LUXUS cameras and lights are designed to combine operational and service flexibility, excellent performance and reliability.
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Product
Digital Light Meter
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Digital Light Meter features include: Easy-to-use, Pocket Size & Light Weight, Low Battery Indicator, Photo Detector: One Silicon Photo Diode with Filter
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Product
Digital Light Monitor
LMC-20
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The LMC-20 functions not only as a light monitor for coating thickness, but also allows control of multi layer/multi material coating processes. Up to 2000 individual layers in a coating are possible, by using 40 program banks of 50 layers each. The characteristics of up to 99 different coating materials can be input as well. Final thickness can be calculated to 1% of a quarter wave.
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Product
Light Testers
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Hall’s have designed and manufactured products for oil, industrial, farming, commercial, and transportation markets. Products such as truck and trailer light testers, bop savers, early engine warning systems, oil spinners, engine control panels, dashes for service rigs, drillers panels, and sandline controls. Halls have been involved with over the rebuilding from scratch of over twenty service rigs.
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Product
OUTDOOR LIGHTING
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At CLS LED, we specialize in transforming outdoor spaces with cutting-edge LED lighting solutions. Our outdoor lighting systems combine aesthetic excellence with technical precision, creating captivating nighttime environments while ensuring safety, security, and energy efficiency. Whether you’re illuminating a historic building facade, designing an inviting park atmosphere, or creating dramatic landscape features, our expertise and premium LED technology deliver outstanding results that stand the test of time and weather.
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Product
Light Sources
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Fiber optic light sources are a low-cost way to analyze and identify accurate fiber optic readings, while certifying optical fiber. Receive the ability to measure fiber optic light continuity, loss, and quality of the signal.
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Product
Light Intensity Sensor
E-LIS
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Detects and measures the luminous intensity of light. Ideal for monitoring unmanned closets, telecom rooms, remote data rooms, or other low traffic facilities. Applications from 0 to 128,000 lux. Human eye response (540 nm peak sensitivity). IR and UV rejection. RJ45 connector. Supports CAT5/5e/6 cable up to 1,000 ft. (305 m). Powered by ENVIROMUX-2D/5D/16D. Regulatory approvals: CE, RoHS. Compatible with ENVIROMUX-2D/5D/16D.
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Product
Interior light simulator
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It is possible to evaluate characteristics of various solar cells and various sensors with high precision under LED lighting. It is possible to evaluate output characteristics conforming to JEITA standard ET - 9101 *
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Product
Optical Chopper
SR540
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Stanford Research Systems, Inc.
The SR540 chopper will handle all your optical chopping requirements?from simple measurements to dual-beam and intermodulation experiments. The SR540 has a 4-digit frequency display, front-panel frequency control, analog voltage frequency control and two reference outputs with selectable operating modes.
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Product
HMI High-Speed Lighting
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Atlas Material Testing Solutions
The automotive industry uses various types of crash testing every day to evaluate and improve automotive safety. The application of high-speed photography utilizing two- or three-dimensional test analysis is the current tool of choice. While high-speed cameras have become more sophisticated, they cannot solve all problems facing the photographer. Along with camera optics, light is the most critical element in achieving the best pictures, using the desired frame rate and depth of focus.
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Product
Light Meter
PLMT56
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Light Meter Measures In LuxOver-Range IndicatorLong-Life Silicon Photo Diode InsideMeasurement Rate: 1.5 Times per SecondMax Range: 50,000 LuxAccuracy: +/- 5% Under 10000 Lux, +/- 10% Over 10000 LuxMax Resolution: 0.1 LuxDimensions: 7.40' H x 2.52' W x 0.96' DAccessories Included: 12V A23 Battery, Photo DetectorSold as : Unit
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Product
Real Scene Lighting
LightSTUDIO
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Image Engineering GmbH & Co. KG
Test charts are used to test digital cameras and to perform objective measurements. But there are certain aspects in testing a camera that require a real scene. One of these aspects is the correct white balancing for different types of illuminants. Another aspect might be the determination of the visual loss of detail due to noise reduction or the amount of noise in an image.
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Product
Short Light Source
LM-AS
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The short light source is compatible with the LM-101 or the LMC-20. The light is supplied with a 50 watt tungsten halogen convection cooled light source which provides suffcient energy for use with narrow band pass filters or monochronomators in the wave length range of .35 to 2.5 microns. The light beam is chopped at 200 hz by a quiet, vibration free, synchronous motor. The housing also contains a secondary LED light source and detector for synchronization of the amplifier, plus an electro-mechanical shutter to block the light output when the instrument is zeroed. An internal collimating lens produces a narrow beam (<1") so the LM-AS can be used in bell-jar and large coating systems.
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Ambient Light Sensors
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Renesas' ambient light sensors optimize display backlighting, enhance energy efficiency, and improve user experience with ultra-low light sensitivity, low power consumption, and precise spectral response. Our offerings include light-to-digital sensors with IR blocking filters and I2C interfaces, and light-to-analog solutions integrating photodiodes and amplifiers. Designed for automotive, industrial, and medical applications, these sensors deliver reliable performance even in demanding environments.
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Multi-Laser Light Source
LS-n
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The LS-n is a customizable, compact fluorescence excitation source that provides up to four different laser wavelengths in a single combined output beam, with each laser individually controllable using ANF's custom software. An LS-4 unit (containing four lasers) is included with each standard NFM NanoFluorescence Microscope.





























