Optical framing projector forward access adjustment and locking systems

摘要

The invention relates to a forward access optical framing projector assembly either forward of, or housed behind, a finished surface in which adjustments to the assembly can be made from the front end making it safer and easier to manage. The forward access design requires only a small opening behind a finished surface and can be adjusted by tool instead of hand. The invention has a light mask gate attached to a gate rotation sleeve, and a locking fastener parallel to the optical axis of the light source that pushes the light mask gate forward, making it possible to lock the light mask gate. A tool can be inserted into an opening in light masking shutters. Radial slots in a front cone flange combined with either a shutter gate with radial grooves or a nut retainer tab makes it possible to variably adjust and lock the light masking shutters.

主权项

1. A forward access optical framing projector assembly comprised of a light source to produce a light beam, a gate rotation sleeve, a light mask gate with a light mask slot, and an objective focal lens disposed within the path of the beam, wherein the light mask gate is retained to the gate rotation sleeve by fastening a gate-retaining ring to the gate light mask gate for circumferential rotation of the light mask gate and the gate-retaining ring simultaneously around the path of the beam independently of the gate rotation sleeve.