Comments on: Real Design for Low Income People http://apptechdesign.org/2009/05/real-design-for-low-income-people/ The Appropriate Technology Collaborative Wed, 09 Nov 2011 01:18:44 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: jb http://apptechdesign.org/2009/05/real-design-for-low-income-people/comment-page-1/#comment-2127 jb Sun, 12 Dec 2010 21:54:58 +0000 http://apptechdesign.org/?p=76#comment-2127 Hi Elaine- We are in the process of updating our solar lighting design. The technology changes enough every two years to make our previous designs obsolete! I just sent off a really simple design to a group working in Europe to supply Africa. If they take it we will publish very soon. The design is extremely simple and inexpensive. Sorry to say it, but stay tuned!! Hi Elaine-

We are in the process of updating our solar lighting design. The technology changes enough every two years to make our previous designs obsolete! I just sent off a really simple design to a group working in Europe to supply Africa. If they take it we will publish very soon. The design is extremely simple and inexpensive. Sorry to say it, but stay tuned!!

]]> By: Tyson Cook http://apptechdesign.org/2009/05/real-design-for-low-income-people/comment-page-1/#comment-2086 Tyson Cook Fri, 10 Dec 2010 15:43:32 +0000 http://apptechdesign.org/?p=76#comment-2086 This may not actually be important or applicable here, but I can't help but think - do you have a targeted/ anticipated usage scenario for these? I'd be concerned about the life of the chips in an insulated environment (i.e. in wood with a cap). In my experience, one of the most crucial aspects of LED lighting design for durability is thermal management. Something to consider anyway. This may not actually be important or applicable here, but I can’t help but think – do you have a targeted/ anticipated usage scenario for these? I’d be concerned about the life of the chips in an insulated environment (i.e. in wood with a cap). In my experience, one of the most crucial aspects of LED lighting design for durability is thermal management. Something to consider anyway.

]]> By: elaine http://apptechdesign.org/2009/05/real-design-for-low-income-people/comment-page-1/#comment-1888 elaine Sat, 27 Nov 2010 20:11:59 +0000 http://apptechdesign.org/?p=76#comment-1888 I am setting up a place in Uganda and want to buys solar lamps , lights are you making them yet... we could buy them & help market them. I am setting up a place in Uganda and want to buys solar lamps , lights are you making them yet… we could buy them & help market them.

]]> By: jb http://apptechdesign.org/2009/05/real-design-for-low-income-people/comment-page-1/#comment-1659 jb Thu, 04 Nov 2010 15:01:29 +0000 http://apptechdesign.org/?p=76#comment-1659 HI- Frosting the lens reduces total light output. New LEDS have much higher lumens/watt. We are using 110 l/w LEDs now which work great! HI-

Frosting the lens reduces total light output. New LEDS have much higher lumens/watt. We are using 110 l/w LEDs now which work great!

]]> By: Aoife http://apptechdesign.org/2009/05/real-design-for-low-income-people/comment-page-1/#comment-1358 Aoife Tue, 12 Oct 2010 12:11:55 +0000 http://apptechdesign.org/?p=76#comment-1358 So that took me a while to cop on to but I was looking at super high wattage bulbs....duh Did you look into ways to optimise lumen levels much? Would frosting the diffuser help? Dang I wish I'd done physics. So that took me a while to cop on to but I was looking at super high wattage bulbs….duh
Did you look into ways to optimise lumen levels much? Would frosting the diffuser help? Dang I wish I’d done physics.

]]> By: Aoife http://apptechdesign.org/2009/05/real-design-for-low-income-people/comment-page-1/#comment-1321 Aoife Fri, 08 Oct 2010 12:57:20 +0000 http://apptechdesign.org/?p=76#comment-1321 Apologies if this is a stupid question, (I'm pretty new to the whole appropriate technology thing) but I've started working with a group of grannies in rural Uganda and they seem interested in starting up a small business. I was thinking a product which could enhance lives might sell better than the usual cheap jewellery so I was looking into making small battery powered LED lamps (most people currently using paraffin ones here). The limiting factor however seems to be the cost of an LED bulb. Just wondering where you sourced yours for less than $2 because even the most basic ones I've come across on the internet so far seem extortionate! Thanks!! Apologies if this is a stupid question, (I’m pretty new to the whole appropriate technology thing) but I’ve started working with a group of grannies in rural Uganda and they seem interested in starting up a small business. I was thinking a product which could enhance lives might sell better than the usual cheap jewellery so I was looking into making small battery powered LED lamps (most people currently using paraffin ones here). The limiting factor however seems to be the cost of an LED bulb. Just wondering where you sourced yours for less than $2 because even the most basic ones I’ve come across on the internet so far seem extortionate! Thanks!!

]]> By: Lk.wiginton http://apptechdesign.org/2009/05/real-design-for-low-income-people/comment-page-1/#comment-544 Lk.wiginton Tue, 09 Jun 2009 17:22:16 +0000 http://apptechdesign.org/?p=76#comment-544 The use of university-level classroom projects centered around appropriate technology have been shown to be successful in forging the connection between physics and social benefit, and increasing non-physics majors’ interest in the subject. This approach has the potential to use university students’ access to resources and testing equipment in furthering the development of appropriate technology. Please see: Joshua M. Pearce, "Teaching Physics Using Appropriate Technology Projects]", The Physics Teacher, 45, pp. 164-167, 2007. pdf at: http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PHTEAH000045000003000164000001&idtype=cvips&gifs=yes The use of university-level classroom projects centered around appropriate technology have been shown to be successful in forging the connection between physics and social benefit, and increasing non-physics majors’ interest in the subject. This approach has the potential to use university students’ access to resources and testing equipment in furthering the development of appropriate technology. Please see: Joshua M. Pearce, “Teaching Physics Using Appropriate Technology Projects]”, The Physics Teacher, 45, pp. 164-167, 2007. pdf at: http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PHTEAH000045000003000164000001&idtype=cvips&gifs=yes

]]> By: Real Design for Low Income People | Design & Architektur | Umwelt | www.reset.to http://apptechdesign.org/2009/05/real-design-for-low-income-people/comment-page-1/#comment-529 Real Design for Low Income People | Design & Architektur | Umwelt | www.reset.to Tue, 12 May 2009 08:18:19 +0000 http://apptechdesign.org/?p=76#comment-529 [...] von: Julian   ( Alle Beiträge )Veröffentlicht: 12. Mai 2009 - 10:02Quelle: http://apptechdesign.org The Appropriate Technology Collaborative ist eine NGO, deren Ziel es ist angemessene Lösungen [...] [...] von: Julian   ( Alle Beiträge )Veröffentlicht: 12. Mai 2009 – 10:02Quelle: http://apptechdesign.org The Appropriate Technology Collaborative ist eine NGO, deren Ziel es ist angemessene Lösungen [...]

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