Two Adjuster Kinematic Mirror Mounts
Features- Mounts Available for Ø1/2", Ø1", or Ø2" Optics
- Hardened Steel Inserts at Kinematic Contact Points to Reduce Wear
- Phosphor Bronze Bushings and Stainless Steel Lead Screws for Smooth Adjustment
- Mounting Holes Enable Left-Handed or Right-Handed Operation
- Larger Mirror Mounts Also Available
Thorlabs offers a variety of standard two-adjuster kinematic mirror mounts. Included on this page are our most poplular Ø1/2" (KM05), Ø1" (KM100), and Ø2" (KM200) mirror mounts. These standard kinematic mounts offer an angular adjustment range of ±4° (±3° for the KM200), are all mountable in left- or right-handed orientations, and secure the mirror at three points using a nylon-tipped locking screw and a double-bored mounting hole. For your convenience, the popular KM100 and KM200 mounts can be purchased prepackaged with one of our broadband dielectric-coated mirrors at a discount to the individual component prices; please see the product listings below for the available selection. More information regarding the general specifications and the reflectivity of each coating across its spectral range is available under the Mirror Info tab above. The knobs on the KM100 and KM200 are removable, thereby exposing the hex sockets at the end of the lead screws (see the image above). We also offer kinematic mounts (KM05T, KM100T, and KM200T) designed for stress-free mounting of thin optical components. These mounts have an internally threaded hole with a lip on the back side against which the optic can be secured using the included externally threaded retaining ring. Optics up to 1/8" (3.2 mm) thick can be held in these mounts. With #8 (M4) counterbored through holes on the back plate, these mounts are compatible with both imperial and metric Ø1/2" posts. The knobs on the KM100T and KM200T are removable, thereby exposing the hex sockets at the end of the lead screws. The KM100CP kinematic mount is designed to center the front surface of the optic over the center of the mounting post. This is ideal for beams incident at 45°, which can be easily aligned with the optical table's hole matrix.
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A complete presentation of the available information on the broadband dielectric coated mirrors that come premounted in the KM series of kinematic mirror mounts can be seen by following this link. However, the general specifications, spectral operating range, and the reflectivity as a function of wavelength for an unpolarized beam incident at 45° is shown below. | Common Specifications |
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| Substrate Material | Fused Silica | | Flatness | λ/10 | | Surface Quality | 10-5 Scratch- Dig | | Back Surface | Fine Ground | | Clear Aperture | >90% of Diameter | | Thickness Tolerance | ±0.2 mm | | Diameter Tolerance | +0.00/-0.10 mm |
| Mirror | Spectral Range | Damage Threshold |
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UV Laser Mirror (KM100-E01)
| | 1 J/cm2 (355 nm, 10 ns, 10 Hz, Ø0.373 mm) | Visible Laser Mirror (KM100-E02) (KM200-E02) | | 0.25 J/cm2 (532 nm, 10 ns, 10 Hz, Ø0.803 mm) | Near IR Laser Mirror (KM100-E03) (KM200-E03) | | 1 J/cm2 (810 nm, 10 ns, 10 Hz, Ø0.133 mm), 0.5 J/cm2 1064 nm, 10 ns, 10 Hz, Ø0.433 mm) | 1.28 - 1.6 µm Laser Mirror (KM100-E04) | | 2.5 J/cm2 (1542 nm, 10 ns, 10 Hz, Ø0.181 mm) |

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