Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
Max The Magnificent
User Rank
Blogger
Re: Fresnel lens maybe...?
Max The Magnificent   5/5/2014 12:26:37 PM
NO RATINGS
@rcurl: If you've got some acrylic rod and a chum at a machine shop then you could get some custom made lenses.

It's one thing saying to the lads "can you whip me up a single XYZ" -- but it's a different kettle of fish when you want 250 of something...

Max The Magnificent
User Rank
Blogger
Re: Fresnel lens maybe...?
Max The Magnificent   5/5/2014 12:24:54 PM
NO RATINGS
@rcurl: I can get these for 69 cents each.  In the meanwhile I'll look for a cheaper alternative.

I just ordered one from Digi-Key -- just to see if it fits through the brass washer (if it doesn't, then this is a non-starter anyway).

Max The Magnificent
User Rank
Blogger
Re: Fresnel lens maybe...?
Max The Magnificent   5/5/2014 12:23:19 PM
NO RATINGS
@rcurl: There wasn't anything in your specification about cost!

That doesn't mean I intend to have everything gold-plated LOL

Rcurl
User Rank
Rookie
Re: Fresnel lens maybe...?
Rcurl   5/5/2014 12:19:54 PM
NO RATINGS
@Max: They are $1.58 each from Digi-key -- times 250 = tears rolling down my cheeks!!!


There wasn't anything in your specification about cost!  I can get these for 69 cents each.  In the meanwhile I'll look for a cheaper alternative.  

If you've got some acrylic rod and a chum at a machine shop then you could get some custom made lenses.

Max The Magnificent
User Rank
Blogger
Re: Fresnel lens maybe...?
Max The Magnificent   5/5/2014 12:08:37 PM
NO RATINGS
@Rcurl: How about using a fresnel lens...

They are $1.58 each from Digi-key -- times 250 = tears rolling down my cheeks!!!

Max The Magnificent
User Rank
Blogger
Re: Fresnel lens maybe...?
Max The Magnificent   5/5/2014 12:04:41 PM
NO RATINGS
@rcurl: How about uaing a fresnel lens for a 10mm led down the center of the cup washer instead of using the frosted mylar?  Look here: http://vcclite.com/_pdf/HMC-461-10mm-fresnel-thread-lens-drawing.pdf

Hmmm -- these do look tasty -- I'm afraid that the ymight be just a tad too wide - -I need to get my hands on one to check it out -- I'll order one today (the other thing is the cost -- remember tha tI need 250 of these little scamps)

Rcurl
User Rank
Rookie
Fresnel lens maybe...?
Rcurl   5/5/2014 11:57:30 AM
NO RATINGS
How about using a fresnel lens for a 10mm led down the center of the cup washer instead of using the frosted mylar?  Look here: http://vcclite.com/_pdf/HMC-461-10mm-fresnel-thread-lens-drawing.pdf

If that doesn't do it, then a short light pipe might work.

Max The Magnificent
User Rank
Blogger
A tempting tidbid...
Max The Magnificent   5/2/2014 6:00:50 PM
NO RATINGS
Just to give you a taste of what's to come, one of the things I want to do is run my Arduino Mega, chipKIT Max32, and all of the LEDs in the BADASS display off a common 26A 5V highly-regulated supply.

However, the Arduino Mega requires a minimum of 7V (and preferably 9V or higher) from it's external supply. Meanwhile, the chipKIT Max32 does have the ability to bypass the main regulator and feed the 5V in directly, but there is a teeny-tiny gotcha if you also have the USB cable connected to a computer at the same time.

Fortunately, my on-site techno-weenie Ivan the Terrible (author of the "All About Batteries" blogs here on EE Times) has come up with cunning solutions to all of these issues.

Watch this space...

<<   <   Page 2 / 2


Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
5 comments
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Max Maxfield

Recommended Reads From the Engineer's Bookshelf
Max Maxfield
23 comments
I'm not sure if I read more than most folks or not, but I do I know that I spend quite a lot of time reading. I hate to be idle, so I always have a book or two somewhere about my person -- ...

Martin Rowe

Make This Engineering Museum a Reality
Martin Rowe
Post a comment
Vincent Valentine is a man on a mission. He wants to make the first house to ever have a telephone into a telephone museum. Without help, it may not happen.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...