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Light Choppers
Intercept current or beams of radiation on a periodic basis.
See Also: Light Sources, Optical Heads
- Taylor Dynamometer, Inc.
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Towing Dynos for Full-Sized Cars & Light Trucks
Designed to maintain 2,248 to 5,620 lb (10,000 to 25,000 N) of constant drawbar pull, our towing dynamometers for full-sized cars to light trucks are powered by an industrial generator to provide unlimited testing at low speeds. Each model features aluminum frame, independent suspension, aero dynamic body and wireless touchscreen controller.
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Detection Electronics
Our detection electronics portfolio comprises all the detection electronics elements required for the operation and automation of a high quality light measurement system, including photo-detector signal recovery and digitisation (with fully programmable DC, AC and lock-in amplifiers having current/ voltage inputs), high voltage supply, optical chopper control, detector thermoelectric cooler control and relay unit.
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Resonant Chopper Systems
Electro-Optical Products Corp.
An external clock signal, to provide an ultra stable modulating optical beam motion [sub] system. The system can be used as a "stand alone" unit, in the laboratory, or can be incorporated into a larger instrument/system. The chopper is ONE FIXED FREQUENCY, picked from the range of 5 Hz to 20 kHz. The chopper is a small size, light weigh, low cost and long life device. It requires low power drive electronics and does not radiate electromagnetic interference (EMI). It has high frequency stability and high amplitude stability. The chopper is IR, VIS and UV and high vacuum capable. Reference signal and position output available.
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Digital Static Field Meter
Model 715B
- Assess electrostatic fields or charge on objects- Measures up to ±19.99 kV at a distance of 1 inch- Accuracy of <±5% in both normal and ionized environments- Uses a chopper stabilized sensor- LED ranging lights for positioning the meter at the right distance- Zero function allows the display to be adjusted to zero (0)- Hold feature to lock the reading on the display- Low battery indicator on the display- 1-year limited warranty
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High Speed Optical Choppers
The Optical Choppers offered by Hinds Instruments are resonant devices designed to work at one frequency. We offer two ways to chop light: a High Speed Optical Chopper (HSOC) and a Photoelastic Modulator (or PEM).
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Reflective Condenser
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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Optical Components for Custom Spectroscopy
HORIBA offers a wide variety of optical accessories. We have optical choppers which pulse continuous light sources. Explore our order sorting filter wheels for spectrographs and monochromators. Choose from our optical fibers and light guides, with flexible light delivery, single fibers, fiber bundles, and liquid light guides. And select from our lens and mirror-based sample compartments.All of these accessories are compatible with our various optical components. Our optical accessories allow us to complete a custom solution for your unique configuration requirements and a variety of spectroscopy applications. HORIBA offers more choices to ensure you can select the best optics for your needs.
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Electrostatic Fieldmeter
Model 775
The pocket-sized Simco-Ion Model 775 Handheld Electrostatic Fieldmeter is designed to locate and measure static charge potentials on product, people, equipment and packaging. The Model 775 Fieldmeter uses a non-contacting, chopper stabilized field sensor and a ranging light mechanism to ensure correct measurements of electrostatic fields in all areas—even those using air ionization.
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Miniature Rotating Optical Choppers
350C and 350CD
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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Light
Welcome to Thorlabs; below you will find links to light emitters, sources, and controllers, a subset of our entire line of photonics products. Our light sources are conveniently separated into coherent and incoherent sources. The coherent source category includes laser diodes, laser diode modules, tunable lasers, HeNe lasers, and femtosecond lasers, while the incoherent source link brings you to a selection of LEDs, white light, and broadband SLD sources. The Quantum Electronics category includes optical amplifiers, modulators, and gain elements that are frequently used in research and OEM applications. All of our light sources and optical amplifiers are supported by an extensive line of mounts, sockets, TEC controllers, and current controllers.
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Light Source
LS-BA
Balance Light Source (LS-BA) is designed for transmittance and absorbance measurement with color information. Halogen Light source provides the stable and smooth wide-band spectral output. It’s proper for most visible to near infrared range measurement. The efficiency of blue region will be enhanced by extra two blue LEDs.
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Light Source
UVF-502S
In combination use with the uniform exposure unit, selection of uniform irradiation area in the range of 80mm200mm is possible.
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Ultra Miniature Rotating Optical Chopper
360C
A small compact low cost system suitable for OEM use. 10 Hz - 14,000 Hz standard chopping frequency range.
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Light Sources
The unique dual-output of equivalent beams make it a useful source for many comparative applications in addition to wavelength calibration and so on. The two output beams originate from two views of the single emitting spot where the electron beam from the single hairpin filament collides with the interchangeable anode.
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Light Microscopy
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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Light Sources
These external units provide illumination which is transmitted to the viewing instrument by a light guide cable, and then through the scope via the integral fiber bundle to the viewing tip.
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Light Source
OrienTek Optical Technology Ltd.
High Precision● Highly accurate unit offering 6 calibrated wavelengths● Interchangeable connectors● Durable and reliable design● Easy-to-use interface forerror-free testing● Rubber armor protection
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Light Meters
Light Meters are used to measure the light output of an illumination source for a number of optical applications. Light Meters are measurement devices that feature photodiodes to determine the level of light transmitted from a source. Light Meters possess simple, easy to read screens upon which measurements are displayed in one or more photometric units. Most Light Meters possess traceable NIST certification for proof of accuracy.
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Light Transmitter
Measure Range: Range 1: 0-2,000 LuxRange 2: 2,000-20,000 LuxRange 3: 20,000-50,000 LuxOutput: 4-20 mARange 1: 1,000 Lux = 12mA2,000 Lux = 20 mARange 2: 2,000 Lux = 5.6mA20,000 Lux = 20mARange 3: 20,000 Lux = 10.4 mA50,000 Lux = 20 mA90 - 260 ACV50 Hz/60 Hz
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Optical Chopper
SR540
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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Optical Chopper
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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Light Meter
MODEL 5202
Kyoritsu Electrical Instruments Works, Ltd.
Digital Light Meter 3 ranges changeable from low to high illuminance. (200/2000/20000lux) Data hold function. Digital light meter with separate light recieving sensor and meter.
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Saluki SE3001 Optical Chopper (1Hz - 10kHz)
SE3001 Optical Chopper is high-precision optical equipment with its chopper frequencies from 1 Hz to 10 kHz. With the advantage of PID technology and high-quality motor, the frequency accuracy of SE3001 is up to 0.5%. SE3001 consists of a console, a chopper head and a control line. The main function of the console is to control the speed of the motor to achieve the target speed. The chopper head is mainly composed of a base and a motor with a blade.
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Light Source
FiberPal OT-3000
The OT-3220/3221 is designed for a high performance stabilized laser source, especially in practice for FTTX networking installation and maintenance fieldworks environment requirements. It is usually applied as stable laser sources for wide range of optical testers and tools in optical fiber cabling and transmission systems.
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Light Meter
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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Light Curtains
Leuze electronic GmbH + Co. KG
Switching light curtains are perfect for monitoring large measurement fields. They react as soon as anything or anyone penetrates this field. Their fast configuration and simple handling save time and money compared to imaging processes. Thanks to different beam spacings and measurement field lengths, switching light curtains can be used to solve a range of application problems.
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Light Source Series
*High output power*Stable and reliable*CW or MOD output*MOD frequency: 270Hz/1KHz/2KHz*SMT, lightweight*Power supply by battery
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Light Source
LS-HA
provides the stable and smooth wide-band spectral output. It’s proper for most visible to near infrared range measurement. This light source is also designed to be used in the standard measurement package. It ‘s a simple and quick measurement platform.
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Long Light Source
LM-A
The long 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-A can be used in bell-jar and large coating systems.
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Trailer Light Tester
Pro-Check 720
Pro-Check trailer light testers with advanced electrical diagnostics are rugged, lightweight, and economical. They independently test each electrical circuit on a trailer to ensure proper connectivity. The Pro-Check identifies each specific type of electrical wiring fault.
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Light Probes (LED-Test)
As the original inventors of light probes for in-circuit color and intensity test of LEDs, our business partner Optomistic Products has been a leader in LED test for over 20 years, providing LED solutions to customers worldwide. Our unique patented LED test solution offers unparalleled reliability and is widely accepted by the LED test industry.
