Sir,
I am both intrigued and curious about the cost-effective LLLT device
described, comprising of 5 laser pointers. Please elighten me whether the 5
laser
pointers incorporate the use of Light-Emitting Diodes [LED]. Light rays from
light-emitting diodes are not collimated and are also incoherent. Thanks.
With regards
Lew
BROOKS BRADLEY wrote:
> My attention has just been called to a transmission error in my earlier
> post. The pointer arrangement should resemble the dots on the face of
> dice----for the number five. My email program shifted the dots.
> My
> apologies. Brooks Bradley.
>
> To all interested list members.
> Since I am, already, at my computer to comment on a
> post by James Holmes, I will take the occasion to relate an item which
> may be of some interest.
> The college-age son of one of our staff researchers came
> up with an effective---if not cosmetically attractive---unit for use by
> persons with limiited funds and/or technical expertise. He constructed
> an effective Low Level Laser Therapy (LLLT) unit by combining five (5)
> laser pointers in a very simple arrangement.
> The pointers were purchased from the local Harbor
> Freight outlet, for a cost of $6.50 ea., plus tax. The configuration is
> as follows: (1) the physical arrangement provides for the "natural"
> arrangement for five similar bodies in an idealized "space utilizing"
> configuration. e.g. _ _
> _
> _ _
> (2) the operating switches (momentary, normally-open)
> require some form of constant-pressure to stay activated. This is
> addressed by using several twists from a rubber band which contacts all
> of the four outside switches, simultaneously.
> (3) the center pointer's on/off switch must be taped down
> prior to arrranging the four outer units. (4) arrange the four outer
> units in such a manner as to have their ON/OFF switch on a line directly
> toward the center of the assembly (this provides the maximum contact
> with the restraining rubber band. (5) assemble the pointers in a
> manner which causes the lower, sloping sections to be parallel to each
> other. This furnishes the closest allowable focus of the beams. (6)
> using tape, or preferably, a properly-sized rubber band, restrain them
> in the desired configuration. (7) next, apply the rubber band you have
> chosen to close the Power Switches of the four outside pointers. Some
> of you more adept-types may chose to use the same rubber band to both
> hold the assembly together----and to operate the power switches, of the
> outside pointers. Since the four outside pointers will be in a
> divergent configuration toward the top of the assembly, some may desire
> to mechanically stabilize it. This may be done through using short
> lengths of "popcicle sticks", thin styrofoam inserts, etc., plus a weak
> rubber band around the top of the assembly.
> Although this explanation may be overly cumbersome, the
> unit itself, is exceptionally simple to assemble.....and to use. The
> power is low enough that the bulbs may be placed in direct contact with
> the outer skin (at least this has been our experience), We have
> employed this unit for continuous periods up to 15 minutes in a single
> location, without any, detectable, adverse reactions beyond slight skin
> reddening.
> We have found this low-power unit to be quite effective for
> applications within its power range. The chief advantage of the LLLT
> over the LED units is that of penetrating power of the coherent light
> beam. We have found no advantage for LLLT in conditions involving
> superficial (outer cutaneous) insults----- among the experimental
> populations.
> Sincerely, Brooks Bradley..
> P.S. Please do remember NEVER POINT ANY LASER DIRECTLY INTO ANYONE'S
> EYE/EYES To do so can cause PERMANENT/IRREPARABLE damage to the centra
> fovea.....plus other retinal damage.
>
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