magnifying glass question

[rhino56]

When you take a magnifying glass and focus the suns rays it produces extreme heat.

Would taking 2 lenses make it even hotter with larger capacity?

like say one lens heats the ant in 10 seconds to frying point.

Would 2 lenses focused on him-

A. Fry him faster and reach a hotter temp?

B. Fry him faster and reach the same temp eventually?

C. Fry him at the same rate as one lens?

D. Other explain.


just something i was wondering about.

 

[TheoPetro]

if there the same size it wont do anything. youre still taking the same amount of energy (light rays) because your limited by the area of the lens.

 

[rhino56]

Originally posted by: TheoPetro
if there the same size it wont do anything. youre still taking the same amount of energy (light rays) because your limited by the area of the lens.

wouldnt you be doubling the amount of energy?

 

[jagec]

If you use two lenses held next to each other, and focused on the same point, almost twice as much energy will be pouring in to that point (not exactly twice, since you'll be holding them a little crooked to focus them both on the same spot, and lose some energy that way). So it will fry him faster, and reach a higher temp.

If you're stacking the lenses, once you figure out how to get the focus to work, it will be slightly less efficient than one lens, due to slightly more absorption, reflection, and scattering of light with 2 lenses.

 

[MichaelD]

No; you cannot use a magnifying glass to trick your GF into thinking your manhood is bigger than its actual size. Mr. Pencil. 😉

 

[PhoenixOrion]

Letter D: Highly Technical

 

[rhino56]

im not talking about stacking, just like this


PIC

 

[TheoPetro]

Originally posted by: rhino56
im not talking about stacking, just like this


PIC

the problem with that is that the suns rays are "parallel" when viewed from earth. because of this for them to focus at the foci of a lens the lens needs to be perpendicular to the path of the rays. if its not you wont get a "clear" dot of light.

 

[rhino56]

Originally posted by: TheoPetro

Originally posted by: rhino56
im not talking about stacking, just like this


PIC

the problem with that is that the suns rays are "parallel" when viewed from earth. because of this for them to focus at the foci of a lens the lens needs to be perpendicular to the path of the rays. if its not you wont get a "clear" dot of light.

how much loss would there be using mirrors to reflect it to the lens?

 

[TheoPetro]

Originally posted by: rhino56

Originally posted by: TheoPetro

Originally posted by: rhino56
im not talking about stacking, just like this


PIC

the problem with that is that the suns rays are "parallel" when viewed from earth. because of this for them to focus at the foci of a lens the lens needs to be perpendicular to the path of the rays. if its not you wont get a "clear" dot of light.

how much loss would there be using mirrors to reflect it to the lens?

not sure. depends on the quality of the mirror. no such thing as a perfect mirror so youll experience loss with anything. cant say on what order the loss would be tho. sorry

 

[rhino56]

Originally posted by: TheoPetro

Originally posted by: rhino56

Originally posted by: TheoPetro

Originally posted by: rhino56
im not talking about stacking, just like this


PIC

the problem with that is that the suns rays are "parallel" when viewed from earth. because of this for them to focus at the foci of a lens the lens needs to be perpendicular to the path of the rays. if its not you wont get a "clear" dot of light.

how much loss would there be using mirrors to reflect it to the lens?

not sure. depends on the quality of the mirror. no such thing as a perfect mirror so youll experience loss with anything. cant say on what order the loss would be tho. sorry

for the most part the mirrors would work wouldnt they?

 

[Eli]

Originally posted by: rhino56

Originally posted by: TheoPetro

Originally posted by: rhino56

Originally posted by: TheoPetro

Originally posted by: rhino56
im not talking about stacking, just like this


PIC

the problem with that is that the suns rays are "parallel" when viewed from earth. because of this for them to focus at the foci of a lens the lens needs to be perpendicular to the path of the rays. if its not you wont get a "clear" dot of light.

how much loss would there be using mirrors to reflect it to the lens?

not sure. depends on the quality of the mirror. no such thing as a perfect mirror so youll experience loss with anything. cant say on what order the loss would be tho. sorry

for the most part the mirrors would work wouldnt they?

Most mirrors are nowhere near 100% efficient.

You need a giant fresnel lens.

Ones a couple of feet across can melt steel.

 

[rhino56]

Originally posted by: Eli

Originally posted by: rhino56

Originally posted by: TheoPetro

Originally posted by: rhino56

Originally posted by: TheoPetro

Originally posted by: rhino56
im not talking about stacking, just like this


PIC

the problem with that is that the suns rays are "parallel" when viewed from earth. because of this for them to focus at the foci of a lens the lens needs to be perpendicular to the path of the rays. if its not you wont get a "clear" dot of light.

how much loss would there be using mirrors to reflect it to the lens?

not sure. depends on the quality of the mirror. no such thing as a perfect mirror so youll experience loss with anything. cant say on what order the loss would be tho. sorry

for the most part the mirrors would work wouldnt they?

Most mirrors are nowhere near 100% efficient.

You need a giant fresnel lens.

Ones a couple of feet across can melt steel.

but, say i have like 8 mirrors and lenses set up and they adjust themselves to match the angles so they stay focused.

it seems like it could emit a strong amount of energy.
if no way to store it with a high strength solar cell maybe military use?

 

[Eli]

Originally posted by: rhino56

Originally posted by: Eli

Originally posted by: rhino56

Originally posted by: TheoPetro

Originally posted by: rhino56

Originally posted by: TheoPetro

Originally posted by: rhino56
im not talking about stacking, just like this


PIC

the problem with that is that the suns rays are "parallel" when viewed from earth. because of this for them to focus at the foci of a lens the lens needs to be perpendicular to the path of the rays. if its not you wont get a "clear" dot of light.

how much loss would there be using mirrors to reflect it to the lens?

not sure. depends on the quality of the mirror. no such thing as a perfect mirror so youll experience loss with anything. cant say on what order the loss would be tho. sorry

for the most part the mirrors would work wouldnt they?

Most mirrors are nowhere near 100% efficient.

You need a giant fresnel lens.

Ones a couple of feet across can melt steel.

but, say i have like 8 mirrors and lenses set up and they adjust themselves to match the angles so they stay focused.

it seems like it could emit a strong amount of energy.
if no way to store it with a high strength solar cell maybe military use?

Huh?!

lol...

You would need very, very expensive mirrors to do what you suggest.

Fresnel lenses are much cheaper. But I don't understand what you're getting at anyway. All a magnifying glass or fresnel lens does is concentrate the energy that is already present into a small point.

Useless for solar cells.. and I'm not sure what the military could use it for... lol

 

[rhino56]

Originally posted by: Eli

Originally posted by: rhino56

Originally posted by: Eli

Originally posted by: rhino56

Originally posted by: TheoPetro

Originally posted by: rhino56

Originally posted by: TheoPetro

Originally posted by: rhino56
im not talking about stacking, just like this


PIC

the problem with that is that the suns rays are "parallel" when viewed from earth. because of this for them to focus at the foci of a lens the lens needs to be perpendicular to the path of the rays. if its not you wont get a "clear" dot of light.

how much loss would there be using mirrors to reflect it to the lens?

not sure. depends on the quality of the mirror. no such thing as a perfect mirror so youll experience loss with anything. cant say on what order the loss would be tho. sorry

for the most part the mirrors would work wouldnt they?

Most mirrors are nowhere near 100% efficient.

You need a giant fresnel lens.

Ones a couple of feet across can melt steel.

but, say i have like 8 mirrors and lenses set up and they adjust themselves to match the angles so they stay focused.

it seems like it could emit a strong amount of energy.
if no way to store it with a high strength solar cell maybe military use?

Huh?!

lol...

You would need very, very expensive mirrors to do what you suggest.

Fresnel lenses are much cheaper. But I don't understand what you're getting at anyway. All a magnifying glass or fresnel lens does is concentrate the energy that is already present into a small point.

Useless for solar cells.. and I'm not sure what the military could use it for... lol

border patrol lol

 

[Bassyhead]

Two lenses won't work. With one lens you are placing the lens between the sun and the ant. Impossible to do with two or more simultaneously. Maybe you need a bigger lens.

 

[Minerva]

If you want more heat you need a larger lens. Try a fresnel lens. Find a clapped out overhead projector or (better yet) an old rear projection TV. A 50" fresnel will produce so much heat you can melt steel and asphalt. It's also very dangerous. Please do not try this on animals! (A 50" to a cat or small dog would be similar to your spyglass on a carpenter ant. Don't even think about it!) -M

 

[rhino56]

Originally posted by: Minerva
If you want more heat you need a larger lens. Try a fresnel lens. Find a clapped out overhead projector or (better yet) an old rear projection TV. A 50" fresnel will produce so much heat you can melt steel and asphalt. It's also very dangerous. Please do not try this on animals! (A 50" to a cat or small dog would be similar to your spyglass on a carpenter ant. Don't even think about it!) -M

i would never harm an animal like that, no worries there. i was mainly wondering why we cant harness the rays of light into energy better. good info though for sure thanks.

 

[rudder]

The question to be asked is why do you hate ants so much?

 

[Viper GTS]

Originally posted by: Minerva
If you want more heat you need a larger lens. Try a fresnel lens. Find a clapped out overhead projector or (better yet) an old rear projection TV. A 50" fresnel will produce so much heat you can melt steel and asphalt. It's also very dangerous. Please do not try this on animals! (A 50" to a cat or small dog would be similar to your spyglass on a carpenter ant. Don't even think about it!) -M

I love the way this girl thinks.

I have a cat, now where can I find a broken RPTV...

Viper GTS