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Subject: 
Re: color sensor: was ( Light sensor values)
Newsgroups: 
lugnet.robotics
Date: 
Sat, 18 Sep 1999 23:20:13 GMT
Viewed: 
717 times
  
Stephen P. Gibbons <lego-robotics@crynwr.com> wrote in message
news:37E361B0.6CA5FEB@aztech.net...
Pure-Lego (but more than one input/output unless a motor can be driven off • of the
output to a light sensor and the input from a light sensor and rotation • sensor can
be multiplexed):
1) 1 light sensor
2) 1 (micro)motor to drive the rotation of the filtering lenses
3) 1 rotation sensor/fibre-optic to detect which lense is in place at a
given

I can think of two sets of filters that would probably be useful:
RGB: (one red, one green, one blue, at 120o each.)

You have a good idea, but the LEGO light sensor is a silicon photo
transistor which is mostly sensitive to infra red.   I doubt you could
measure any thing like blue light with it.



Message has 1 Reply:
  Re: color sensor: was ( Light sensor values)
 
Michael Gasperi <gasperi@alynk.com> wrote in message news:FIA3zE.1Fn@lugnet.com... (...) off (...) I fixed up the spectral response chart on my CdS page to make the point more clear. (URL) (25 years ago, 19-Sep-99, to lugnet.robotics)

Message is in Reply To:
  Re: color sensor: was ( Light sensor values)
 
Pure-Lego (but more than one input/output unless a motor can be driven off of the output to a light sensor and the input from a light sensor and rotation sensor can be multiplexed): 1) 1 light sensor 2) 1 (micro)motor to drive the rotation of the (...) (25 years ago, 18-Sep-99, to lugnet.robotics)

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