Some bond faces simply aren’t reachable in a straight line, and they aren’t reachable at a perfect right angle either. The Incure LGT-60-5 exists for the geometry in between.
When a Right-Angle Terminator Doesn’t Fit the Fixture
A 90° lightguide terminator solves a common problem — redirecting UV output to a bond face that sits perpendicular to the lightguide’s natural axis — but it demands a specific approach: a clear path parallel to the bond face, plus clearance for the terminator body itself in the perpendicular direction. Recessed cavities, angled enclosure walls, and tightly constrained fixtures frequently don’t offer that clearance, even when they’d happily accommodate a narrower approach angle.
The LGT-60-5 mounts onto the tip of any Ø5mm UV spot curing lightguide and redirects its output at a 60° oblique angle instead of a full right angle. That shallower exit geometry fits through narrower approach envelopes than a 90° terminator requires, while still delivering UV to bond faces angled off the lightguide’s straight-line axis — reaching joints that neither a straight guide nor a right-angle terminator can access without repositioning the part.
Eliminating a Re-Fixturing Step
The practical alternative to a 60° terminator, when a bond face sits at an awkward angle inside a constrained assembly, is usually removing the part from its fixture, exposing the joint for straight-line access, curing it, and re-fixturing before the next process step. That sequence adds handling time and introduces part-to-part positioning variation every cycle.
Attaching the LGT-60-5 once aligns the cure window with the recessed or angled bond face permanently, for as long as that terminator stays on the lightguide tip. The re-fixturing step disappears entirely, which matters most on high-cycle assembly lines where even a small per-part handling addition compounds across a shift.
Email Us if your fixture geometry is forcing part repositioning to reach an angled bond face — a terminator swap may resolve it without redesigning the fixture.
Precision Aperture Match — No Coupling Loss
The LGT-60-5’s aperture matches the Ø5mm lightguide core directly, so the full Ø5mm output exits at the 60° angle without a step-down at the connection interface. That precision matters on close-pitch bond joints — electronics assembly, angled connector interfaces, slot-constrained housing bonds — where the cure spot needs to stay confined to the joint rather than spreading UV energy across adjacent components. The aluminum body is rated for continuous high-intensity UV exposure, so it holds up under the same duty cycle as the lightguide it’s mounted on.
It’s designed specifically to pair with the Incure LLG-1P-5 single-pole liquid lightguide, and compatible with any UV spot curing lightguide carrying a Ø5mm exit port — not limited to Incure equipment. Confirm the exit port diameter before ordering; an aperture mismatch at the connection interface causes UV energy loss that undermines the terminator’s purpose. The terminator body itself carries no wavelength dependency — it redirects whatever UV output the lamp and lightguide are already delivering, so pairing it with a mercury arc, xenon, or halogen source behind the LLG-1P-5 changes nothing about how the LGT-60-5 mounts or performs.
Application Fit
The LGT-60-5 fits recessed PCB bond joints, slot-constrained housing bonds, and angled connector interfaces in electronics assembly; recessed prism bonding and angled lens-edge joints inside enclosed fixtures for optical assembly; and angled sensor housing seals, recessed gasket faces, and slot-constrained bond lines in general industrial and automotive work. The common thread across all of these is a bond face that a straight lightguide or a 90° terminator physically cannot reach without disturbing the fixture.
Because the terminator mounts and detaches from the lightguide tip without tools, a facility running mixed fixture geometries can standardize on one LLG-1P-5 lightguide per station and swap terminators between jobs rather than stocking a dedicated lightguide-and-terminator pair for every angle a process might require. That flexibility matters most on contract manufacturing lines running varied part geometries from job to job, where the fixture layout — and the bond angle it demands — changes more often than the lamp or lightguide hardware itself.
Choosing Between the Four LGT-Series Configurations
The LGT-Series spans two exit angles (60° and 90°) across two aperture sizes (Ø5mm and Ø8mm). For a wider oblique spot on the same 60° angle, the LGT-60-8 covers larger angled bond areas in a single pass instead of the Ø5mm’s more concentrated spot. For perpendicular access at the same Ø5mm precision, the LGT-90-5 handles bond faces that sit at a true right angle rather than an oblique one — a fixture that permits full 90° clearance is often better served by that configuration, since the LGT-60-5’s value is specifically in the constrained cases the right-angle terminator can’t reach.
Selecting the correct terminator comes down to two questions: what angle does the bond face actually sit at relative to the lightguide axis, and what aperture size does the existing Ø5mm or Ø8mm lightguide already carry. Getting either wrong either leaves UV energy uncaptured at a mismatched aperture or leaves the bond face out of reach at the wrong angle.
For a deeper look at how the terminator range fits into a broader UV spot curing setup, see the full LGT-Series lightguide terminators overview and Incure’s general lightguide selection guide. Operators servicing terminator-equipped stations should wear Vison UV-blocking eyewear rated for the lamp driving the lightguide, since redirected UV at an oblique angle still carries the same exposure risk as the original straight-line output. Contact Our Team to work through terminator selection for a specific fixture geometry.
Visit www.incurelab.com for more information.