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prism

In optics, a prism is a transparent optical element with flat, polished surfaces that refract light. At least two of the flat surfaces must have an angle between them. The exact angles between the surfaces depend on the application. The traditional geometrical shape is that of a triangular prism with a triangular base and rectangular sides, and in colloquial use "prism" usually refers to this type. Some types of optical prism are not in fact in the shape of geometric prisms. Prisms can be made from any material that is transparent to the wavelengths for which they are designed. Typical materials include glass, plastic and fluorite.
A dispersive prism can be used to break light up into its constituent spectral colors (the colors of the rainbow). Furthermore, prisms can be used to reflect light, or to split light into components with different polarizations.

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Recent contents
  1. bbowl

    WTS OR  Burris 5x prism AR scope

    Sold
  2. Joe Link

    Vortex Optics Raptor 6.5x32 Porro Prism Binocular - $60 shipped

    Seems like a great deal. I already have a nice set of bino's but these will make a great backup/loaner set. Vortex Optics Raptor 6.5x32 Porro Prism Binocular
  3. Tony617

    PA 3X Compact Prism Scope with the ACSS 5.56 Reticle

    I bought an fairly inexpensive scope from Primary Arms. Looks pretty good but is somewhat heavy. The optics are really clear and since I wear glasses the eye relive is quite good. I have a laser bore sight that I can use to at least to do preliminary setup the optics and then shoot it and make...
  4. ThemGunsThough

    WTS OR  New Buris AR-536 5x Prism Sight

    Edit
  5. Jcon268

    WTS OR  Burris AR332 3x Prism

  6. Jcon268

    WTS OR  Burris AR332 3x Prism optic

    Acquired this optic in a trade. Have not used it. Didn't originally come with lens caps but I ordered them for it. $240 firm. In very good shape. Fresh battery installed.
  7. HA556

    WTS OR  Burris AR536 Prism Scope

    Burris 5X36 prism scope. Scope is like new and comes with a QD mount that has never been out of package. The scope retails for $399 and the mount is about $75. I'd like to get $265.00 tyd. PayPal preferred.
  8. REKT1

    WTS/WTT OR  Vortex spitfire x4 prism LNIB

    Here we have a VORTEX SPITFIRE X4 PRISM red/green dot. Bought it about two months ago and its just not for me. Comes with original box and all associated doodads. Would straight trade for a Vortex Patrol red dot and associated mounting hardware. If not, $180 Will meet you where convenient...
  9. Tack_Ryan

    WTS OR  Primary Arms 2.5x Prism Scope with ACSS Reticle

    I'm selling a Primary Arms 2.5x prism scope. This scope is clear, has great eye relief, and works perfectly for close to medium range. The reticle (illuminated) really makes this scope shine with built in range finding, and bdc marks set up primarily for 223/556. I have tested it on a 14 inch...
  10. mpperales

    WTT OR  Vortex Spitfire AR 1X Prism Scope

    I have a new, unused Vortex Spitfire AR 1X Prism Scope….only mounted once….never outside…and never had a round through it. Factory new condition….purchased from NW Armory in March. After playing around with it I have discovered I truly do like a red dot instead of a prism optic. I am interested...
  11. elkhunt58

    Minox 10x42 Roof Prism Binoculars

      1. For Sale
    • Eugene
    • Oregon
    A great little pair of Minox binoculars. These are 10x42, fully water and fog proof, twist up eye cups, rubber armored, fully coated glass and a padded strap. They are in great shape and produce a high quality image for reasonable very reasonable price. You won't be disappointed. $140 shipped.
  12. G

    WTS OR  Burris 332 3x prism scope

    Barely used 2 hours. Decided on non magnified. Comes with box, Allen tool, dust caps, has not been adjusted. Very bright $200
  13. Tack_Ryan

    WTS OR  Vortex Spitfire 1X Prism Red Dot

    For Sale is a Vortex Spitfire 1X Prism Red Dot Optic. This sight is crystal clear, uses green or red illumination, and has an etched reticle so even if the batteries die you still have the ability to effectively use this sight. It is extremely fast on target, and has an excellent dual ring and...
  14. tim007

    WTS/WTT WA  Burris AR-332 3x prism sight

    Bought this and put it on the wifes gun.. used for two range days ..doesn't like it she wants a 5x so up for sale it goes. No box but i still have the instructions and accessories .. Make offer $250 obo..... will ship at full price ... Email me [email protected] Or call me and leave message...
  15. AndyH

    WTS OR  Burris AR-332 3x Prism Sight

    Bought new, never fired. Was removed from box and fitted to an AR then returned to box. $225 The Burris AR-332 Prism Sight is ideal for use on AR style rifles. The sight is compact and features a unique Ballistic/CQ reticle with bullet drop compensation for shots out to 500 yards. The AR-332...
  16. Erik PDX

    WTS OR  Vortex Spitfire 3x - Like New In Box

    I'm selling a Vortex Spitfire 3x prism scope. I bought it new a few months ago, mounted and sighted in... and decided I prefer 1x. It is a nice optic though, just doesn't fit my style of shooting. I paid $350ish, would like to see $260 cash. This is a fantastic deal for a basically new optic...
  17. Joe Link

    Burris AR-332 3x32mm Prism Red Dot Sight - Brand New In Box

      1. For Sale
      2. For Trade
    • $225
    • Portland
    • Oregon
    I have for sale a brand new, in the box, Burris AR-332 3x32mm Prism Red Dot Sight which has never been mounted, turned on, or even removed from the plastic bag. I bought this for the FF3 deal, so the box is missing the UPC. I was planning on selling it on eBay, but I figured I'd see if someone...
  18. pewpewspew

    WTS/WTT OR  Vortex Spitfire 3x Prism Scope

    Vortex spitfire 3x prism scope Missing one flip open end cap. Possible trades for drop in AR15 trigger kit. Cassette style. Must have full power hammer spring. $250 Firm
  19. reddot556

    WTS WA  PA 5x prism sight and GG&G accucam mount

    I have a like new sight here.Comes with the box with mount attached.. $200.00 shipped to the lower 48 paypal as a "gift" or add 3% postal money order
  20. 206thsense

    WTS WA  Vortex SPITFIRE 3x Prism Scope New

    This is a brand-new Vortex Optics Spitfire 3x Prism Scope. Never been mounted to a rifle and fired, I only opened the box the confirm the contents and check the battery. Still in mint condition, and dollar for dollar, I don't think you can find a better scope for the same. Vortex Spitfire 3x...
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