Looking for recommendations for a new light fixture

"Wayne Sallee" wrote in message ...
I find it humorous the way the CatoptricReflector1.jpg is
drawn in such a way that it is misleading with the light
rays not all coming at a 90 degree angle from the light
source.

The drawing is correct, Wayne!

The light will reflect at the same angle you direct
the light source from the flat surface...

This is exactly how the parabolic reflector works IF...
IF is important: the light source has to be in the
focus poit of this parabole shape...

Of course - reflectors you can buy at the fish stores
are not perfectly parabolic, but they try to estimate
the shape with multiple stright bends of the sheet metal.

Here is a better picture of this process:
http://en.wikipedia.org/wiki/Reflection_%28physics%29

No, not really. Imagine if you were to draw that same
drawing, and you were to make a yellow circle, and then
demonstrate the light coming out of it in all directions.

Wayne Sallee
Wayne's Pets



Pszemol wrote on 6/19/2006 4:56 PM:
"Wayne Sallee" wrote in message
...
I find it humorous the way the CatoptricReflector1.jpg is drawn in
such a way that it is misleading with the light rays not all coming at
a 90 degree angle from the light source.

The drawing is correct, Wayne!

The light will reflect at the same angle you direct
the light source from the flat surface...

This is exactly how the parabolic reflector works IF...
IF is important: the light source has to be in the
focus poit of this parabole shape...

Of course - reflectors you can buy at the fish stores
are not perfectly parabolic, but they try to estimate
the shape with multiple stright bends of the sheet metal.

Here is a better picture of this process:
http://en.wikipedia.org/wiki/Reflection_%28physics%29

That drawing implies that more of the light is reflected
than actually is. Much of it never hits the reflector.

Wayne Sallee
Wayne's Pets



Wayne Sallee wrote on 6/19/2006 5:11 PM:
No, not really. Imagine if you were to draw that same drawing, and you
were to make a yellow circle, and then demonstrate the light coming out
of it in all directions.

Wayne Sallee
Wayne's Pets



Pszemol wrote on 6/19/2006 4:56 PM:
"Wayne Sallee" wrote in message
...
I find it humorous the way the CatoptricReflector1.jpg is drawn in
such a way that it is misleading with the light rays not all coming
at a 90 degree angle from the light source.

The drawing is correct, Wayne!

The light will reflect at the same angle you direct
the light source from the flat surface...

This is exactly how the parabolic reflector works IF...
IF is important: the light source has to be in the
focus poit of this parabole shape...

Of course - reflectors you can buy at the fish stores
are not perfectly parabolic, but they try to estimate
the shape with multiple stright bends of the sheet metal.

Here is a better picture of this process:
http://en.wikipedia.org/wiki/Reflection_%28physics%29

Around 25% never hits the reflector.

Wayne Sallee
Wayne's Pets



Wayne Sallee wrote on 6/19/2006 5:15 PM:
That drawing implies that more of the light is reflected than actually
is. Much of it never hits the reflector.

Wayne Sallee
Wayne's Pets



Wayne Sallee wrote on 6/19/2006 5:11 PM:
No, not really. Imagine if you were to draw that same drawing, and you
were to make a yellow circle, and then demonstrate the light coming
out of it in all directions.

Wayne Sallee
Wayne's Pets



Pszemol wrote on 6/19/2006 4:56 PM:
"Wayne Sallee" wrote in message
...
I find it humorous the way the CatoptricReflector1.jpg is drawn in
such a way that it is misleading with the light rays not all coming
at a 90 degree angle from the light source.

The drawing is correct, Wayne!

The light will reflect at the same angle you direct
the light source from the flat surface...

This is exactly how the parabolic reflector works IF...
IF is important: the light source has to be in the
focus poit of this parabole shape...

Of course - reflectors you can buy at the fish stores
are not perfectly parabolic, but they try to estimate
the shape with multiple stright bends of the sheet metal.

Here is a better picture of this process:
http://en.wikipedia.org/wiki/Reflection_%28physics%29

"Wayne Sallee" wrote in message ...
Around 25% never hits the reflector.

Of course, the rays of light that not hit the reflector
will not get reflected and will travel on the stright
route from the source. But how can you tell it is 25%
or 75% without knowing how good your reflector is ? :-)

Wow that's quite a stretch of the subject of the
indifference being discussed about the drawing.

Wayne Sallee
Wayne's Pets



Pszemol wrote on 6/19/2006 5:40 PM:
"Wayne Sallee" wrote in message
...
Around 25% never hits the reflector.

Of course, the rays of light that not hit the reflector
will not get reflected and will travel on the stright
route from the source. But how can you tell it is 25%
or 75% without knowing how good your reflector is ? :-)

"Wayne Sallee" wrote in message ...
Wow that's quite a stretch of the subject of the
indifference being discussed about the drawing.

Not only this - I still do not see this 90 deg
you have mentioned before ;-)