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Posted: 7/15/2016 7:01:41 PM EDT
| Do all illuminated scopes bleed light through the objective lense? I know some do. If not all do, what makes the difference. |
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No they don't.
Describe what you mean be bleed through the front lens. Do you mean flare? That's when looking in the direction of the sun stray light is bouncing around inside the scope and sometimes shows up as a curtain, veil, or blocks or restricts part of your image. That is due to inadequate internal antireflection measures. Extended sun shades sometimes help with this. Or are you thinking about how some illuminated reticles wash out in bright light? Or something else? Here's a good primer on how scopes work, how stray light affects performance, what to look for and what you can sometimes do about stray or reflected light. http://opticsthoughts.com/?page_id=122 ://opticsthoughts.com/?page_id=122 |
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I believe he may be refering to light bleeding out the front of the optic when the illumination is turned on.
There are two types of illumination designs on variables optics that I know of. One of which involved a led light projected towards the objective lends which paints the crosshair or etched reticle with red light the chosen color and the rest of the illumination is "waisted" as it spills out the front of the optic. The bonus for this type of optic is that it can illuminate unique reticle designs and it can illuminate the whole reticle if desired. Another type of illumination is a fiber optic which terminates in the center of the reticle and projects a bright red dot to the shooter and it does not spill light out the front of the optic. These models such as the razor HD tend to be red dot bright but tend to favor simple dot illumination. If you don't want light spill out the front, I suggest looking into the firedot, short dot, or razor hd. Posted Via AR15.Com Mobile |
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Quoted:
I believe he may be refering to light bleeding out the front of the optic when the illumination is turned on. There are two types of illumination designs on variables optics that I know of. One of which involved a led light projected towards the objective lends which paints the crosshair or etched reticle with red light the chosen color and the rest of the illumination is "waisted" as it spills out the front of the optic. The bonus for this type of optic is that it can illuminate unique reticle designs and it can illuminate the whole reticle if desired. Another type of illumination is a fiber optic which terminates in the center of the reticle and projects a bright red dot to the shooter and it does not spill light out the front of the optic. These models such as the razor HD tend to be red dot bright but tend to favor simple dot illumination. If you don't want light spill out the front, I suggest looking into the firedot, short dot, or razor hd. Posted Via AR15.Com Mobile Didn't think of that. Indeed, I just turned the FireDot on my VX-R 3-9x Patrol up on maximum brightness and looked through the objective in a pitch black room. Nothing visible! And this is a daylight bright reticle. I guess this is because the diode is actually over in the left side where a side focus would be and the reticle is fed through a tiny fiber optic tube facing rearward. |
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