Features

Compact Laser Diode Modules

Photonic Products (Huntington Beach, CA) has launched 8-mm-diameter laser diode modules for use in prepress plate alignment and laser alignment for label and wrapper cutting machinery, and medical applications such as patient positioning. The modules consist of a brass housing, laser diode, drive circuit, and adjustable collimating or focusing lens. The lens may be adjusted to produce either a collimated beam or focused spot. Electrical connections are made via external flying leads.

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Silicon Avalanche Photodiodes

The SAR500x silicon avalanche photodiodes (Si-APD) from Laser Components (Hudson, NH) feature a 500-μm detector chip with a “reach-through” structure. This structure is responsible for sensitivity in the spectral range of 400 nm to 1,100 nm and, simultaneously, for rise and fall times typically of 450 ps. It is suitable for laser range finding and optical communication, with data transfer rates of up to 1 Gbit/s. It can detect a small amount of light and is suitable for low-noise and low dark current applications, typically 200 pA@M = 100. The SAR500x is available in a hermetically sealed TO-18 can. The SARP500 version can be delivered in a TO-18 can with a thermoelectric cooler in a TO-37 can. It is additionally suitable for use in spectroscopy, fluorescence measurements, medical technology, and LIDAR applications.

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Laser Beam Expanders

Optical Surfaces Ltd. (Surrey, UK) offers laser beam expanders for high-power laser and Doppler shift LIDAR applications. Manufactured to better than lambda/10 surface accuracy, the off-axis design of the beam expanders produces no central obscuration. Alignment aids are supplied with each beam expander to ensure correct beam pointing. The all-reflecting design is achromatic and, with aluminum coatings, can operate from the UV to far IR without adjustment. The beam expanders are housed in a box assembly that provides for fixing to an optical table, and enables transportation to different sites without the need for internal realignment. Options include ultra-hard dielectric, protected silver, and gold laser coatings. Standard models include exit apertures of 100 mm, 150 mm, and 200 mm, with up to 20x magnification systems.

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Interferogram Analysis Software

IntelliWave 5.0 interferometry analysis software from Engineering Synthesis Design (Tucson, AZ) features a new scientific programming language. The automation/client server architecture allows bidirectional communication and data transfer between other programs for industrial systems automation. Wizards provide factory floor quality control measurements of flats, lenses, mirrors, prisms, and corner cubes. A graphics engine enables users to create and present reports. IntelliWave 5.0 can be used with virtually any interferometer.

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Excimer Laser

Coherent (Santa Clara, CA) has introduced the LAMBDA SX 315C excimer laser designed for low-temperature polysilicon (LTPS) crystallization used in the manufacture of flat-panel displays (FPD). The laser features pulse energy of up to 1,050 mJ and pulse stability of 0.5%. It offers an average power of 315W stabilized, and is suitable for micromachining and packaging applications in microelectronics, such as laser direct patterning of flex circuits and laser lift-off. The LAMBDA SX 315C provides the ability to reach mobility levels to minimize threshold voltage variations of thin-film transistors, enabling active-matrix organic light-emitting displays. The laser’s proprietary PowerLokTM and TimeLokTM technologies provide laser stability.

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Handheld Photometer

Designed for measuring area illumination, projector output, screen brightness, architecture lighting, room lighting, and color uniformity, Photo Research (Chatsworth, CA) has developed the PR-524 LiteMate illuminance handheld photometer system. The PR-524 features a cosine corrected receptor and measures illuminance. The optional PR-522 SpotMate, featuring true Pritchard spot optics, can be added to make luminance measurements. The Pritchard optics-based PR-522 is being offered as an accessory for measuring the luminance of LCDs, PDPs, and projection screen displays. The PR-525 ColorMate is a multi-detector colorimeter that makes near-real-time color measurements. Measured values include illuminance, CIE chromaticity, and correlated color temperature. Both instruments feature a touchscreen display, USB, and a multimedia card slot. Other accessories include a fiber probe and micro-reader probe.

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Color Dome

The ESD-380DR high-speed color dome from ELMO USA Corp. (Plainview, NY) provides 360° continuous pan rotation at a travel speed from 5° to 400°/second. It operates from presets with 180° auto turnaround. The ESD-380DR features tilt travel from -10° to 190°, and 256 programmable preset pinpoint target areas. Pan and tilt speed automatically adjust in proportion to the depth of zoom. The color dome includes an IP66-rated weather-resistant outdoor housing, and a day/night model that captures image details in glaring sunshine or darkness. Minimum illumination is 0.01lux. CCD color cameras with DSP circuitry provide resolution of 470 TVL images, and feature 23× optical zoom with 12× programmable zoom. A 24-position privacy zone-masking protects against intrusive monitoring. Other features include digital flip, auto/manual focus, auto iris, auto/manual white balance, auto/manual focus, backlight compensation, eight programmable alarm inputs, and an OSD display for setup.

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