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???
05/07/09 08:46
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 		 #165128 - bulk lamp
Responding to: ???'s previous message
Jecksons Ben said:
For Hobby but for helped the others.

Still within your US$10 budget!


Did Andy recognized the "bulk lamp"?

No - I said that I didn't!

It is a portable batteray torch.

That'll be even worse! Not at all suitable as a calibration reference!

The colour temperature of a torch bulb varies widely with battery condition and many other factors!

When The LED couldn't used as the sensors (+LDR)

Nobody said that it couldn't work - the question was how you are going to calibrate it!

Then the "bulk lamp" is an other option.

Not really - see above.

when night come then the sensors didn't working.

The sensor is still working!
It is correctly reporting a light level of zero!



List of 44 messages in thread
TopicAuthorDate
simple Colour sensor            01/01/70 00:00      
   LDR spectral response            01/01/70 00:00      
      the colours rod transparant....            01/01/70 00:00      
         Didn't answer the question            01/01/70 00:00      
            with common red 5mm led            01/01/70 00:00      
               Insufficient!            01/01/70 00:00      
               Does not sound like a solution, but please link            01/01/70 00:00      
                  with bulk lamp 1.5-VDC torch            01/01/70 00:00      
                     bulk lamp?            01/01/70 00:00      
                        Meant            01/01/70 00:00      
                     You haven't searched, have you?            01/01/70 00:00      
                        Had searched            01/01/70 00:00      
                           I'm only googling the cheap solution.            01/01/70 00:00      
                              for...            01/01/70 00:00      
                                 bulk lamp            01/01/70 00:00      
                                 Measuring color is way harder than you think!            01/01/70 00:00      
         You missed the point!            01/01/70 00:00      
            Calibrated is the problem            01/01/70 00:00      
               Test what?            01/01/70 00:00      
   There is a simple solution            01/01/70 00:00      
      Lots of work            01/01/70 00:00      
      Thank's            01/01/70 00:00      
         How?            01/01/70 00:00      
            something...            01/01/70 00:00      
               this colour            01/01/70 00:00      
                  Controllable? Repeatable?            01/01/70 00:00      
                     Fading a big problem            01/01/70 00:00      
                        why all the 'fiddle'            01/01/70 00:00      
                           I want cheap crap            01/01/70 00:00      
                              it's Christmas in June            01/01/70 00:00      
                                 fishing line            01/01/70 00:00      
                                    ooooohhh look what I found            01/01/70 00:00      
                                       Beat you to it!            01/01/70 00:00      
                                       I sticky            01/01/70 00:00      
                                          LED bulk lamp?            01/01/70 00:00      
                                             Bulk lamp - he means a torch (or "flashlight")            01/01/70 00:00      
                                                LED or bulk lamp            01/01/70 00:00      
                                                   Not color but changes in color            01/01/70 00:00      
                                                      Yes...Correct            01/01/70 00:00      
                        with black small tube            01/01/70 00:00      
                     Colour-ish            01/01/70 00:00      
   just thought of it            01/01/70 00:00      
      Glass filters good but normally expensive            01/01/70 00:00      
         Jacksons duality            01/01/70 00:00      

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