HLT

Do you have masking tape on your walls? The HLT provides a simple solution for tracking external laser locations in your CT/SIM or Linac Vault.

Key Features

  • Lasers shine brilliantly when aligned properly
  • Alignment can be verified from across the room
  • Easy semi-permanent installation with double-sided adhesive
  • Permanent installation with anchors and fasteners
  • Easily adjustable for recalibration, tool included

Full Description

The HLT (Holmes Laser Tab) began as a simple solution to a small challenge every clinic faces, and the idea came from one of our clinical partners. After commissioning a brand new clinic, the physicist concluded that he did not want to put masking tape on the walls of their new multi-million dollar facility and sought a more functional and attractive solution. At the time, there wasn't one, but rationale for finding one was simple - what kind of message would masking tape send to their patients? It wouldn't exude confidence, and seemed like an afterthought.

The physicist contacted IMT on a Friday afternoon, communicated his challenge and idea for the solution to our design team, and on Tuesday morning he received the first HLT's. 

The HLT is manufactured from highly-durable Delrin® Acetal Resin and features a mounting base with a an adjustable tab. The tab hosts a 0.5mm bright white laser indicator. When a laser is centered on the indicator within 1mm, the HLT indicator shines brilliantly and can be seen from across the room. If the laser is more than 1mm from the expected location, the laser will disappear into the surrounding black material, thus indicating a significant change has occurred.

The HLT can be mounted in a vertical or horizontal orientation, can be used in any vault where laser location is monitored, and can be used with any color or type of lasers. IMT recommends a minimum of four tabs to detect shifts of 1mm or more. Adding a second tab to each laser, for a total of eight tabs, is recommended when detection of deviations less than 1mm are desired.

Installation is fast and simple and can be performed using a double-sided adhesive strip or wall anchors, both of which are included with every HLT. In the event that a calibration or other desired change in the laser's nominal position is needed, the indicator tab can be adjusted up to 45mm (vertically or horizontally) without removing it from the wall base by loosening the set screw. Rotation of +/- 3.5˚ can be achieved when the HLT is attached to the wall using the included fasteners.
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