Cosine Receptors collect light with an 180o field of view using demountable diffusers with ~10% loss. A perfect cosine response provides accurate absolute intensity when multiple lights are measured at the same time.

• CR2 is a 1⁄4” diameter UV-NIR cosine receptor using a polymer diffuser for 200-1700nm & 180° FOV .
• CR2-AP is a 10% aperture for the CR2 that extends the system dynamic range by an order of magnitude, thus enabling spectral measurements of sources that are 10 times brighter without the need for re- calibration using a brighter calibration lamp.
• CR2-RA is a 90° right-angle Cosine Receptor cube.
• CR2-TP miniature tripods for the CR2.
• CR-LENS is a cosine receptor lens assembly that reduces the field of view from 180 degrees to a small spot. Adjustable focus allows variable distance from target surface such as OLED displays.