Daniel Reetz, the founder of the DIY Book Scanner community, has recently started making videos of prototyping and shop tips. If you are tinkering with a book scanner (or any other project) in your home shop, these tips will come in handy. https://www.youtube.com/channel/UCn0gq8 ... g_8K1nfInQ

whats this device ?

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ray_uk
Posts: 8
Joined: 18 Aug 2012, 08:07
Number of books owned: 0
Country: Wales UK

whats this device ?

Post by ray_uk » 23 Sep 2012, 10:35

Hi Group
This is my first post in this great forum. Amins if this is in wrong section, please remove.
Anyway Just came back from a boot sale in Cardiff. I bought this item for 50p thinking it may be useful as lighting for my DIY Book Scanner. I havent a clue what it is, even the seller didnt know. Please see attachment and if anybody tells me what it is, and if its useful to anybody on the forums, they can have it for free if the pay the postage. In the attachment you can see 3 slides the bottom is a magnifier middle slides like camera shutter etc. The lamp is just a halagen bulb. Any idea folks
Thanks
Rayo
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daniel_reetz
Posts: 2776
Joined: 03 Jun 2009, 13:56
E-book readers owned: Used to have a PRS-500
Number of books owned: 600
Country: United States
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Re: whats this device ?

Post by daniel_reetz » 25 Sep 2012, 09:33

It's a projector. You put the image (like a slide) somewhere before or after the aperture of the thing, and it will project the image onto a wall or floor.

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Heelgrasper
Posts: 70
Joined: 19 Feb 2012, 21:04
E-book readers owned: None
Number of books owned: 500
Location: Randers, Denmark

Re: whats this device ?

Post by Heelgrasper » 28 Sep 2012, 00:04

Looks like this is called a gobo projector to be exact: http://blogs.terrorware.com/geoff/2010/ ... rojection/ . And that looks like something you can use for something cool (there's a YouTube video or two). But not scanning books :D
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Randers, Denmark

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TomHorsley
Posts: 96
Joined: 30 Jan 2011, 10:39

Re: whats this device ?

Post by TomHorsley » 28 Sep 2012, 06:32

Heelgrasper wrote:Looks like this is called a gobo projector to be exact: http://blogs.terrorware.com/geoff/2010/ ... rojection/ . And that looks like something you can use for something cool (there's a YouTube video or two). But not scanning books :D
I don't know, maybe you could use it to project a grid on the book for an aid to detecting the geometry and mathematically flattening the pages :-).

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