Artificial Lighting for Tongue Diagnosis

[Guest guest]

Hi people

 

I've been working in a particular clinic on and off for the last year

and have stopped observing any purple hues within the tongue bodies.

I used to observe pale purple tongues quite often - we have a lot of

qi deficiency, yang deficiency and stagnation here in London UK.

 

There is no natural light in the clinic and I feel that the spot

lights on the ceiling might be responsible and am thinking of buying

a portable light that throws natural (or as close to natural as

possible) light on the tongue.

 

I'm also unsure whether to get:

1. a lamp on a high stand that points down at the tongue;

2. a lamp that shines up at the ceiling; or

3. a lamp that just illuminates the whole room.

 

Many thanks for any background knowledge or experience of

makes/designs/setups that you can share.

 

David

[Guest guest]

David Gordon wrote:

> I've been working in a particular clinic on and off for the last year

> and have stopped observing any purple hues within the tongue bodies.

> I used to observe pale purple tongues quite often - we have a lot of

> qi deficiency, yang deficiency and stagnation here in London UK.

>

> There is no natural light in the clinic and I feel that the spot

> lights on the ceiling might be responsible and am thinking of buying

> a portable light that throws natural (or as close to natural as

> possible) light on the tongue.

>

> I'm also unsure whether to get:

> 1. a lamp on a high stand that points down at the tongue;

> 2. a lamp that shines up at the ceiling; or

> 3. a lamp that just illuminates the whole room.

 

Hi David!

 

Daylight varies between 4500 and 7000 Kelvin. I would try to find as

small a light as I could that produced this color temperature of light,

even a flashlight that you could keep in your pocket. If you find

something like that, post it to the list. I don't have one of these, but

I have florescent lights in the room - see purple hues easily.

 

Regards,

 

Pete

[Guest guest]

I would strongly suggest to point a strong (i.e. stronger than the light of

other artificial light sources in the room) source of natural light directly

at the tongue.

 

 

 

Avoid reflection:

 

Any natural light that reaches the tongue indirectly will be light reflected

on some surface in the room. The reflected light has a different spectrum

than the incident light because aach reflecting surface will to a varying

extend change the frequency spectrum of the incident natural light. E.g. a

surface that we see as purple, will absorb most of the non-purple part of

the incident (natural) light and mainly reflect the purple part of the

incident light and thus will create a purple hue on any other surface in the

room we look at. (when buying cloth my wife will always take the piece of

cloth outside the shop to evaluate colours).

 

 

 

Avoid lightsources with a non-natural spectrum:

 

It changes the colours we see but not the referencerange of colours we have

in mind to compare to when diagnosing.

 

 

 

Lamps should used that create light with a spectrum that matches closely the

spectrum of natural sunlight. You could try

e.g.http://www.naturallighting.com/

 

 

 

Please share your experience.

 

 

 

Bernhard Decubber

 

 

 

-----Oorspronkelijk bericht-----

Van: Chinese Medicine

Chinese Medicine Namens David Gordon

Verzonden: zondag 5 maart 2006 9:19

Aan: Chinese Medicine

Onderwerp: Artificial Lighting for Tongue Diagnosis

 

 

 

Hi people

 

I've been working in a particular clinic on and off for the last year

and have stopped observing any purple hues within the tongue bodies.

I used to observe pale purple tongues quite often - we have a lot of

qi deficiency, yang deficiency and stagnation here in London UK.

 

There is no natural light in the clinic and I feel that the spot

lights on the ceiling might be responsible and am thinking of buying

a portable light that throws natural (or as close to natural as

possible) light on the tongue.

 

I'm also unsure whether to get:

1. a lamp on a high stand that points down at the tongue;

2. a lamp that shines up at the ceiling; or

3. a lamp that just illuminates the whole room.

 

Many thanks for any background knowledge or experience of

makes/designs/setups that you can share.

 

David

 

 

 

 

 

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