Patent ID: 6794652
Filing Date: 2004-09-21
Classification: G01N,G01V

Abstract:
An apparatus for providing an alternate light source for illuminating a fluid sample in a near infrared data acquisition instrument comprising:a near infrared data acquisition instrument for traversing a well bore; a fluid sample container in the near infrared data acquisition instrument for containing a fluid sample; a first light source for illuminating the fluid sample in the sample container; a second light source for illuminating the fluid sample in the sample container; a single collimating lens having an optical axis for collimating light from the first light source and the second light source; and a mounting block for positioning the first light source and the second light source symmetrically about the optical axis of the collimating lens for symmetrically illuminating the fluid sample container from the first light source and the second light source to reduce off-axis data errors.