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From: Lasse Langwadt <llc@fonz.dk>
Newsgroups: sci.electronics.design
Subject: Re: "Colorimeter"
Date: Mon, 19 May 2025 22:33:59 +0200
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On 5/18/25 21:45, Don Y wrote:
> On 5/18/2025 6:13 AM, Lasse Langwadt wrote:
>> On 5/17/25 23:03, Martin Brown wrote:
>>>
>>> If you are serious about doing this right then a 2D CCD sensor and a 
>>> prism hires grating combo at right angles will allow you to quantify 
>>> the entire visible spectrum at ultra high resolution. 
>>
>> use a CD https://youtu.be/EoAZ-u6hn6g?si=Mv-DfJ5swtq2-j1X&t=98  :)
>>
>> eons ago we used some CCDs as detectors for X-ray fluorescence, some 
>> had weird formats like 1024x64 pixels so I assume they were really 
>> made for spectroscopy
> 
> As mentioned elsewhere, how do they fare when light is shining directly 
> on the
> sensor?  How do you keep it from saturating -- dark lens to attenuate 
> the signal?

or a shutter to limit the time light hits the sensor