PLX Lateral Transfer Hollow Retroreflectors

Lateral Transfer Hollow Retroreflectors (LTHRs) are optical components that reflect light back to its source while laterally shifting the beam. They are used in various applications, including interferometry and alignment systems, where maintaining beam direction and precise alignment are critical.

PLX’s line of LTHR’s are extremely temperature stable because all component parts have the same coefficient of thermal expansion (CTE). A variety of coatings are available, as well customization and two aperture choices.

PLX is a Luxium Solutions brand that has been at the forefront of developing high-quality monolithic optics for over 60 years. PLX optics can withstand and perform under the harshest environmental conditions and maintain their accuracy over time.

Key Features

Perfect for folding parallel light 180° degrees.
Available with sub arc second accuracy.
Extremely temperature stable.
Large choice of coatings
Sealed all-weather enclosures available.
Compact package available.
Vacuum-compatible.
PLX is a registered ISO 9001 company.

PLX's Line of LTHR's

Lateral Transfer Hollow Retroreflector (LTHR)

Perfect for folding parallel light 180° degrees.
Ideal solution for “U” fold in a large size Michelson interferometer or back to back configurations for folding interferometers.
Available with sub arc second accuracy.
Extremely temperature stable.
Large choice of coatings.
Vacuum-compatible.

Full specs and detailed description on the PLX website here.

All Weather Lateral Transfer Hollow Retroreflector (LTHRAW)

Perfect for boresighting:
- Targeting pods
- Surveillance systems and rangefinders
- LIDAR boresight
- Telescope boresight
High precision spectroscopy and optical alignment
Invariant beam folding/sampling
Designed for Field applications.
Extremely temperature stable.
Large choice of coatings.
Sealed all-weather enclosures.
Maintenace-free.
Vacuum-compatible.

Full specs and detailed description on the PLX website here.

Exceptional Performance Lateral Transfer Hollow Retroreflectors (LTHRXP)

Patent pending structural design and innovative mounting method.
Smaller envelop when space is at premium.
Available with sub arc second accuracy.
Unprecedented temperature range, ΔT=140°C (284°F).
Free-float stress free mounting.
Highly shock and vibration resistant.
Maintains sub-arcsecond accuracy under rapid thermal transitions
Vacuum-compatible.
Large choice of coatings.

Full specs and detailed description on the PLX website here.

If you need a quote or would like more information on this product then please get in touch

Selector Chart

PROPERTIES	LTHR	LTHRAW	LTHRXP
Package Size	Standard	Standard	Compact
Dust Proof	No	Yes	No
Water/Humidity Proof	No	Yes	No
Vacuum-compatibility	Yes	Yes	Yes
Mechanical Stability	Excellent	Excellent	Excellent
Temperature Range	Very Good	Very Good	Excellent
Vibration	Very Good	Very Good	Excellent
Shock Resistance	Excellent	Excellent	Excellent
Protective Housing	Yes	Yes	Yes