Patent ID: 9341468
Filing Date: 2016-05-17
CPC Classification: G01B

Claim Text:
1. A measuring apparatus that includes a light projecting and receiving device configured to project and receive light, and measures an object based on the projected and received light, the measuring apparatus comprising: a chamber configured to enclose a first space for accommodating the object; a partition configured to separate the first space from a second space that accommodates the light projecting and receiving device, and configured to transmit light; a first regulator configured to regulate a temperature of the first space to a first temperature by flowing gas through the first space; and a second regulator configured to regulate a temperature of the second space to a second temperature different from the first temperature by flowing gas through the second space, wherein the partition includes a plurality of partition walls disposed with a gap therebetween to reduce heat transfer between the first space and the second space.