Photometric Apparatus And Measurement Control Program

A measurement control program in a photometric apparatus including a photosensor portion that receives light and performs a measuring operation for acquiring predetermined photometric data relating to the received light;

• and a tilt sensor portion that detects a tilt angle with respect to a predetermined reference plane, said measurement control program comprising the steps of:
• (a) determining a tilt state of said photosensor portion based upon said tilt angle;
• (b) determining whether said tilt state determined in said step (a) satisfies said predetermined condition or not;
• and
• (c) determining said photometric data acquired by said photosensor portion as effective photometric data, when said tilt state satisfies said predetermined condition in said step (b).

A photometric apparatus comprising:

• a photosensor portion that receives light and performs a measuring operation for acquiring predetermined photometric data relating to the received light;
• a tilt sensor portion that detects a tilt angle with respect to a predetermined reference plane;
• and
• a measurement control portion that executes a predetermined alarm process recognizable by a user, when a tilt state of said photosensor portion, determined based upon said tilt angle, does not satisfy a predetermined condition.