Abstract: A continuous slanted edge focus measurement system characterizes focus of a camera lens. The measurement system may be used to measure effects on focus on caused by factors such as thermal focal shift, humidity focal shift, focal shift caused by changing parts in the camera, and focal shift by changing the camera design. An accurate measurement system enables camera designers to optimize focus under a variety of different conditions and ensure consistency in the products.

Abstract: A continuous slanted edge focus measurement system characterizes focus of a camera lens. The measurement system may be used to measure effects on focus on caused by factors such as thermal focal shift, humidity focal shift, focal shift caused by changing parts in the camera, and focal shift by changing the camera design. An accurate measurement system enables camera designers to optimize focus under a variety of different conditions and ensure consistency in the products.

Abstract: A continuous slanted edge focus measurement system characterizes focus of a camera lens. The measurement system may be used to measure effects on focus on caused by factors such as thermal focal shift, humidity focal shift, focal shift caused by changing parts in the camera, and focal shift by changing the camera design. An accurate measurement system enables camera designers to optimize focus under a variety of different conditions and ensure consistency in the products.

Abstract: An imaging tool which has an objective lens, a beam splitting mirror and a turning mirror. The turning mirror has a centrally integrated aperture. The turning mirror is located at a secondary focal plane in the illumination path, and thus there is no illumination at any point on the object pane which is stigmatic with the integrated aperture. The integrated aperture provides a means to inject or remove light from a small spatial portion of the object plane. An airspace waveguide is integrated into the metal substrate of the turning mirror and eases the transfer of light from an external optical port to and from the aperture, and then onto the object plane.