Light & Laser Blog Blog

Light & Laser Blog

The Laser & Light Blog is the place for conversation and discussion about optoelectronics, fiber optics, lasers, light sources, optics, imaging, electro-optics, and anything else related to the photonics industry. Here, you'll find everything from application ideas, to news and industry trends, to hot topics and cutting edge innovations.

Previous in Blog: Space Bacteria — Do We Have Company in the Universe   Next in Blog: Where does the space program go next?

Project Yourself

Posted April 01, 2011 4:20 PM by Steve Melito

If you were old enough to wear a wristwatch during the 1980s, you probably remember the now "classic" Casio LCD timepiece. Watches and liquid crystal displays (LCDs) still abound, of course, but light emitting diodes (LEDs) are now all the rage. For its part, Casio Computer Co. is also alive and kicking. The Japanese-based builder of electronic devices makes everything from watches to phones and calculators to cameras. Casio now makes "hybrid" projectors, too.

Earlier this week, Casio announced plans to ship a new lineup of projectors later this year. Each of the company's 12 new "hybrid" light sources will use a combination of lasers and LEDs instead of lamps. Product specifications include 3,500 lumens of light and an estimated life of 20,000 hours. Three-dimensional (3D) digital light processing (DLP) technology, an interactive whiteboard, a short-throw lens, and high brightness are also available.

Casio's high-brightness projectors are noteworthy in that they provide both 802.11b/g wireless networking capabilities and wired network connectivity via the 10Base-T/100Base-TX standard. RS-232 serial communications and two universal serial bus (USB) ports are also available. Casio's low-wattage projectors have RS-232 and USB ports, but lack the wired and wireless networking capabilities of the high-brightness models.

Source: Campus Technology


Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Popular Science - Evolution - New Member Popular Science - Weaponology - New Member

Join Date: May 2006
Location: The 'Space Coast', USA
Posts: 11112
Good Answers: 918

Re: Project Yourself

04/03/2011 11:59 AM

Whatever happened to those little watches with mechanical hands? They worked just fine, if not better.

Unless you need to know time down to the seconds, the brain processes analog watch hands faster than reading digits and 3D digits offer zero advantage as far as determining the time of day. Cute fad, but it will pass and analog watches will still be manufactured for some time to come.

My watch uses analog hand, but does have a small digital readout for TOD down to seconds if needed, including timers and the ability to rapidly change time zones as needed. That's about as much watch as I will ever need.

Hobbies - Fishing - Popular Science - Paleontology - New Member

Join Date: May 2008
Location: Holeincanoe Ontario
Posts: 2169
Good Answers: 27

Re: Project Yourself

04/04/2011 7:59 AM

Hey Moose.......I still wear my Novus LED back from 75. It takes two batteries, heats up when time is displayed, does date and chrono....accurately! It's a classic, made in the USA by American Semiconductor and I believe it's the first of since the original Pulsar prototypes. It's a heavy watch....not like those lightweight Casios and Timex'.....

Prophet Freddy has the answer!
Engineering Fields - Electrical Engineering - New Member United States - Member - New Member

Join Date: Apr 2007
Location: Wichita, Kansas USA
Posts: 650
Good Answers: 30
In reply to #2

Re: Project Yourself

04/04/2011 8:51 AM

I don't remember the brand, but when LED watches came out in the 70's, I just had to have one. Asked for, and got one, for Christmas, sure wish I still had that watch, it would be quite the conversation piece today! I remember it was a blank face, until you pushed a button to display the time. The battery life would have been terrible to have the LED display lit up continuously. Not very practical to have to press a button to read the time, but I loved the technology of the watch!

Tom D.

Anonymous Poster #1

Re: Project Yourself

04/05/2011 1:21 PM

Does anyone here remember one of the first widely available LCD watches which was marketed by JS & A company? I think it was termed the "Laser" watch. I had one I just don't remember the details. Here's the guy who preceded Sharper Image and other companies of that ilk, with interesting "gadgets."

Reply to Blog Entry 4 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Copy to Clipboard

Users who posted comments:

Anonymous Hero (1); Anonymous Poster (1); Duckinthepond (1); tdesmit (1)

Previous in Blog: Space Bacteria — Do We Have Company in the Universe   Next in Blog: Where does the space program go next?
You might be interested in: Projectors, Light Guides, Light Emitting Diodes (LED)