FRESNEL LENS plus additional optical secondary magnifying glass

This test incorporates a secondary glass lens just short of the focal point allowing most of the concentrated light from the first lens to be further concentrated by the second glass lens. The results we a 50% reduction on focal point diameter but also a significant power drop.

Category:

Science & Technology

Tags:

• SOLAR
• POWER
• FRESNEL
• LENS
• OPTICAL
• GLASS
• GREENPOWERSCIENCE
• GREEN
• SCIENCE

[inspacedependence]

Dan, where can I contact you?

[GREENPOWERSCIENCE]

@inspacedependence GREENPOWERSCIENCE1YAHOO or message through youtube

[GREENPOWERSCIENCE]

@inspacedependence message through youtube

[gjholcomb]

have you ever tried to take focused light from the fresnel lense and bounce it around the yard with a mirror and burn things farther away like a make shift solar laser?

[GREENPOWERSCIENCE]

@gjholcomb The focal point is set, mirrors add to the distance so you would not get a laser, it would be spread very wide like a wide angle light. A flat mirror alone would provide a better beam.

[klj2503]

What music is that ?

Good videos you make

Thanks

[MrBrownstick]

Love you videos it's really cool interesting and educational stuff just wondering how do fund all these projects must be very expensive

[gabielroy]

i tawt the same thing than youn but the test prove other wise glad of your failure hope sucess in a near future(THIS IS SCIENCE AT TRUTH FORM)

[kishbud]

Dan great set up, I've done what you are trying. Here's whats happening with your setup. Your second lens has a flat surface facing back toward the Fresnel, so thats reflecting about 20% of your total light transmission, you have to use coated optics also known as Anti-reflective coatings MgF2, it's the same coating they put on good camera lenses, that blue-green Hugh on the lens. That will give you about 98% total light transmission. By design the Fresnel has about a 20% loss vs a clear lens.

[TheLonelyImmortal]

Why don't we see Denise anymore?

[gjholcomb]

didnt mean a laser,i was just being funny.just wondered if you could bounce the fresnel light around the yard and maintain the strength of the focused light with an everyday mirror.

[gjholcomb]

didnt mean a laser,i was just being funny.just wondered if you could bounce the fresnel light around the yard and maintain the strength of the focused light with an everyday mirror.

[TepochaTe]

would you be my father? i really love all the stuff you do!

[truvak]

man, i doesn´t make any sense! this morning I took an advance physics book just to ask you the very same question: what if a magnifying glass... there has to be a way, doesn´t feel far fetched.

[SouthNJPC]

@JehuMcSpooran

Yup, i hope he sees these comments and builds a sun laser!