Optical element holder with a protruding feature to hold a chamfered optical element

An optical system, comprising:

• an optical element holder that holds an optical element in an internal portion of the optical element holder,
• wherein the optical element holder includes a protruding feature with a contact portion that holds the optical element in the internal portion of the optical element holder;
• and
• the optical element that is held within the internal portion of the optical element holder by the protruding feature,
• wherein an edge of the optical element includes a chamfered portion that contacts the contact portion of the protruding feature of the optical element holder, and
• wherein the chamfered portion provides a transition from the edge of the optical element to a front face of the optical element, and an angle of the chamfered portion, relative to a plane parallel with the front face of the optical element, is less than 90 degrees.

A method of assembling an optical device, comprising:

• heating an optical element holder,
• wherein the optical element holder includes a circular opening that provides access to an internal portion of the optical element holder,
• wherein heating the optical element holder causes the optical element holder to expand and a diameter of the circular opening to increase;
• inserting, after heating the optical element holder, an optical element into the internal portion of the optical element holder via the circular opening,
• wherein the optical element includes an edge with a chamfered portion that provides a transition from the edge to a front face of the optical element, and an angle of the chamfered portion, relative to a plane parallel with the front face of the optical element, is less than 90 degrees;
• and
• cooling, after inserting the optical element into the internal portion of the optical element holder via the circular opening, the optical element holder,
• wherein cooling the optical element holder causes the optical element holder to contract and causes the diameter of the opening to decrease,
• wherein causing the optical element holder to contract and the diameter of the circular opening to decrease causes the optical element holder to hold the optical element in the internal portion of the optical element holder.