An optical mouse uses a beam of light and an optical sensor to detect movement over a surface -- there are no moving parts.
The PowerShot SX260 HS camera puts Canon's amazing optical reach into a pocket sized camera, with a 20x optical zoom (25mm to 500mm) letting you pull subjects in close.
In addition to that, you'll get more than enough cables for hookup: a TOSlink optical cable, a TOSlink adapter for older Xbox systems, stereo RCA cables for older TVs and an AC adapter with a trio of international connectors.
ENGADGET: Tritton Warhead 7.1 Wireless Surround Sound Headset for Xbox 360 review
The Z80 features a 3X optical zoom, face detection and an intelligent focusing system that locks in the correct focus, while the Z200 rocks a 4X optical zoom and wide angle lens -- down to 28mm.
ENGADGET: Casio intros a handful of new compact cams that play nice with iTunes
Picture an optical telescope, a really good optical telescope, and you have to think big.
The lens on the STYLUS XZ-10 is a 5x optical zoom that covers a focal range from 26-130mm (35mm film camera equivalent).
ENGADGET: Olympus unveils Stylus XZ-10 with f/1.8-2.7 zoom, smartphone sharing app
The PENTAX MX-1 features a 4X optical zoom lens offering a large maximum aperture of F1.8 to F2.5 and 28mm wide-angle coverage (in the 35mm format).
The E900 is a little more budget and has a 4x optical zoom lens, a 2-inch LCD screen, and can also shoot in the RAW format.
ENGADGET: Fujifilm's FinePix S9000 and FinePix E900 break the nine megapixel barrier
They're also making a lot of noise about how rare it is to have a 6x optical zoom lens on a camera of this size, which is sorta true.
ENGADGET: Panasonic's latest digicams: The Lumix DMC-FZ5, DMC-FZ4, DMC-LZ2, DMC-LZ1, and DMC-LS1
The Olympus Stylus Mju 725 sw, a 7.1 megapixel camera with a 3x optical zoom lens and a 2.5-inch LCD that's both shock and waterproof (that's what the "SW" stands for).
ENGADGET: Olympus announces Mju 725 sw, Stylus 730, Stylus 740, Stylus 750, and Stylus 1000
The camera features a 12x optical zoom lens, a 16-megapixel BSI CMOS sensor and a variety of user-friendly features, including five new Glamour Retouch effects, all packed into a slim, stylish camera body.
ENGADGET: Nikon updates Coolpix compact lineup with S9500, sub-$200 S5200 and L28
Next up is the Nikon Coolpix 8800, an eight megapixel camera with a 10x optical zoom lens and a 1.8-inch flip-out LCD screen that's the first consumer camera from them that uses their Vibration Reduction anti-shake system.
Silicon photonics made with inexpensive silicon rather than expensive and exotic optical materials provides a distinct cost advantage over older optical technologies in addition to providing greater speed, reliability and scalability benefits.
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The new Exilim Card EX-S10 (pictured) manages to pack a full 10 megapixels, 3X optical zoom, a 2.7-inch LCD, and stereo microphones into its 1-inch thick frame -- which means we're a little curious as to how noisy that sensor is, since it can't be very big.
ENGADGET: Casio intros a handful of new compact cams that play nice with iTunes
The Olympus Stylus 1000, which sports a ten megapixel sensor, a 3x optical zoom lens, and a 2.5-inch LCD.
ENGADGET: Olympus announces Mju 725 sw, Stylus 730, Stylus 740, Stylus 750, and Stylus 1000
The Olympus Stylus 730, a 7.1 megapixel model with 3x optical zoom, a 3-inch LCD.
ENGADGET: Olympus announces Mju 725 sw, Stylus 730, Stylus 740, Stylus 750, and Stylus 1000
Driven by Lumus' patented Light-guide Optical Element, a micro-display pod, and the Optical Engine which projects light into the lens -- where it is reflected back to the user's eye via reflectors embedded in the lens -- the Lumus' DK-32 delivers a bright 720p 3D-capable display that only weighs 27 grams.
The WB800F is a classic long-zoom camera, with 21x optical zoom and a 16.3 Megapixel BSI CMOS sensor for excellent low-light photography.
ENGADGET: Samsung launches six new point-and-shoot cameras at CES
Recently a company from Utah called Millenniata has introduced an optical disc technology utilizing a disc in which the data is etched (or engraved) into a ceramic substrate rather than stamped on plastic like conventional optical discs.
The PowerShot A85 - Their new four megapixel replacement for the A70 (which was the best-selling digital camera in the US last year), the A85 has a 3.2x optical zoom lens and a 1.8-inch LCD screen.
While the entry-level GZ-E320 misses out on the highlight mode, all five models share a 40X optical zoom, 1080p shooting from a BSI CMOS sensor, an SDXC card slot and a 3-inch touchscreen for previewing any would-be masterpieces.
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Fujifilm claims they've worked through the pixel noise problems that can accompany massive megapixel sensors (we'll have to see about that), but at the very least the S9000 has a 10.7x optical zoom lens, a 1.8-inch tilting LCD screen, a 0.01 second shutter lag time, dual xD and CompactFlash memory card slots, and can capture RAW images.
ENGADGET: Fujifilm's FinePix S9000 and FinePix E900 break the nine megapixel barrier
For the second day in a row, optical networking shares are taking a hit on a weak earnings forecast.
FORBES: Finisar Plunges On Weak Outlook; Other Optical Shares Also Crushed
Zech (The ADVENT Group of Colorado Springs, CO) noted optical storage technology expert, a new commercial optical storage technology using UV light would probably have to be in the 200 nm range and would provide storage capacities of over 100 GB in a single layer.
FORBES: What is the Future of Optical Disc Technology and who will Use It?
In a conventional optical system, light rays enter through a lens and converge at a point to form an image.
Illumina, located further south in San Diego, hopes to have a commercial version of the optical nose ready about a year later.
The crew at TUAW claim they've heard from sources that a new Mac mini will be unveiled with an aluminum finish, a Time Capsule-esque "lip, " and a SATA optical drive that can be customized as a second HDD instead.
ENGADGET: Apple rumor roundup: aluminum Mac minis and supersized iPod touches
That would give it a resolution of a few thousandths of an arc-second enough, were this an optical rather than a radio telescope, to see a boulder just a few metres across on the surface of the moon.
Both new SL-Series cameras feature a high-quality 27mm wide-angle Samsung lens with 5x optical zoom, delivering significant flexibility when compared to a traditional 3x optical zoom, 35mm lens.
ENGADGET: Samsung TL210 and TL205 bring DualView to entry level shooters
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