What is focal length in photography? A guide for beginners - aperture focal length

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In this wiki we use the path ~/GrovePi/ instead of /home/pi/Desktop/GrovePi, you need to make sure Step 2 and Step 3 use the same path.

The Coherent HyperRapid NXT 266 is the world's first industrial-grade deep UV, picosecond laser, offering extraordinary precision manufacturing as small as 5 µm.

Extend the lifetime of optics that require frequent cleaning from exposure to metal spatter and debris in drilling, cutting, and marking applications.

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Simplify construction of anamorphic beam expanders or produce elliptically shaped focused spots with these versatile optics.

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The platforms mentioned above as supported is/are an indication of the module's software or theoritical compatibility. We only provide software library or code examples for Arduino platform in most cases. It is not possible to provide software library / demo code for all possible MCU platforms. Hence, users have to write their own software library.

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Build ultracompact, infrared, camera optical systems for automotive, medical, and life sciences applications with these precision microlenses.

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Grove - Infrared Reflective Sensor is used to detect the presence of an object within a specific range. The sensor consists of an IR LED and a photosensor (phototransistor) pair. The light emitted by the IR LED gets reflected by any object placed in front of the sensor and this reflection is detected by the photosensor(phototransistor). Any white (or lighter) colored surface reflects more than black (or darker) colored surface.

Get exactly the reflectance and transmittance characteristics you require with custom beamsplitters manufactured to your specifications.

Step 1. Download the library Arduino timer1 library and add it into the libraries file of Arduino IDE. A guide about how to run our demo code.

Transform the diameter of high-power CO₂ laser beams with these Galilean telescopes (no internal focus) beam expanders, suitable for a wide range of applications.

Learn about the vertically integrated capabilities for material growth, fabrication, coating, and assembly, and rigorous QA at Coherent. Discover how these ensure the performance and reliability of our optics and minimize supply chain risks and uncertainties.

Obtain polarized laser output or achieve lossless transmission of p-polarized light using these plane parallel windows, designed for operation at Brewster's angle.

Maintain beam collimation between a CO₂ laser and the final focusing optics in a system with our long focal-length lenses and mirrors.

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Align CO₂ and other infrared laser beam delivery systems with these dichroic beamsplitters that transmit IR and reflect HeNe or visible wavelength diode-laser beams.

These are plate beamsplitters nominally designed for use at 10.6 µm at 45° angle of incidence. They can be supplied in various diameters and thicknesses, and with a wide range of different reflectance and transmittance values.

Specify input polarization, diameter, and thickness. A wedge angle of 6-10 arc minutes is standard to minimize etalon effects caused by second surface reflections.

With the SenseCAP S2110 controller and S2100 data logger, you can easily turn the Grove into a LoRaWAN® sensor. Seeed not only helps you with prototyping but also offers you the possibility to expand your project with the SenseCAP series of robust industrial sensors.

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Process materials with increased efficiency using the diffraction-limited focused spots achievable with these precision aspheric lenses.

The IP66 housing, Bluetooth configuration, compatibility with the global LoRaWAN® network, built-in 19 Ah battery, and powerful support from APP make the SenseCAP S210x the best choice for industrial applications. The series includes sensors for soil moisture, air temperature and humidity, light intensity, CO2, EC, and an 8-in-1 weather station. Try the latest SenseCAP S210x for your next successful industrial project.

Replace the focusing lens in your high-power CO₂ laser cutting or materials processing system with this optic that features ultra-low absorption for maximum lifetime.

Step 2. Connect Grove - Infrared Reflective Sensor to any port of Grove-Base Shield via the Grove cable, we use D2 in this demo.

Get sources, electronics, and manufacturing tools for electronics products in health, transportation, and entertainment.

See how we’re helping professionals and institutions — from research facilities and OEMs to hospitals and dentists — achieve better outcomes.

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Lasers with cutting-edge performance and industrial reliability from the pioneer in ultrafast lasers. Get better data faster and publish more.

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Step 5. Open the Serial Monitor of Arduino IDE by click Tool-> Serial Monitor. Or tap the ++ctrl+shift+m++ key at the same time. if every thing goes well, you will get the speed.

Use a proper screw-driver to adjust the tiny potentiometer. Applying heavy pressure or frequent adjustments might damage the wiper of the potentiometer.

Transmit infrared light and laser beams with minimal loss and wavefront distortion using these precision, anti-reflection coated, plane parallel windows.

Learn how we are enabling the next generation of high-speed optical transmission systems, networks, and datacenter solutions.

With this sensor, you can build the following (but not limited to) applications: line following robots, optical encoders and object counting applications.

When the reflected light is detected, it produces Digital LOW (or Binary 0) output on the SIG pin. The on-board LED indicator will also glow. If no reflection is detected or if the object is too far from the sensor, the output on the SIG pin stays at Digital High (Binary 1). The on-board LED indicator will be off as well. The detectable range of this sensor is 4–16 mm. The module incorporates a Rail-to-Rail Operational Amplifier to amplify the output of phototransistor. There is a potentiometer which can be used to adjust the gain of the amplifier, that is, sensitivity of detection.

Protect valuable scan lenses and focusing optics in industrial laser systems from debris, backspatter, and other workplace hazards with these plane parallel windows.

This product is also mildly sensitive to non-IR radiations and hence any bright light on photosensor impairs or disturbs IR light detection.