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I thought Todd has just explained to you that there is more to it than simple handheld meter readings? Have you ever spoken with Dr. Glen Calderhead? He would be happy to explain this to you at the ITA show (as he did with me last year). Skin rejuvenation is a completely different biological response than the production and oxidation of melanin through tanning.
When you buy a car do you ask for the part number of the engine components? We use sophisticated measurement equipment when measuring the dose for a light therapy session not a little $150 meter. Those handheld meters are very helpful for letting a salon owner know when to change bulbs in their tanning beds but they are not accurate enough to let someone know how efficacious a light therapy session is. What does your handheld meter record at 830nm? |
Hey Roy... sniff... you're hurting my feelings! Please don't knock the "simple" model 9.6 Solarmeter until you (or Dr Caulderhead) have tried one. It is a scientific grade instrument with accuracy traceable to NIST in the proper phototheraputic bandwidth for skin rejuvenation:
People used to think Models 5.0, 6.0, 7.0 UV meters were "simple" toys too... (years ago) - until they realized they match Optronics OL754 spectralradiometers almost dead nuts. For what it's worth to you, Don Smith has also verified the 9.6 Red Light meter's accuracy too.
The readings also can be converted to dose using session times as outlined in a (much) earlier post.
Would you like me to invent an 830nm Near-IR meter next? Or can a Radio Shack digital thermometer do the job?
Anyway.... all I'm saying is don't knock it 'till you've tried it vs the "sophisticated" equipment - OK?
For ITS: You have NOT posted readings that MATTER yet - ie at FACE position from a full array.