Page 2: Image Properties and Calculations

The second page focuses on image characteristics and magnification calculations. It explains how to determine whether images are upright or inverted, enlarged or reduced.

Definition: Magnification (grossissement) is the ratio of image size to object size, calculated as A'B'/AB.

Example: The image orientation (droite/inversée) depends on the position of the object relative to the focal point.

Highlight: Three key image properties are discussed:

• Whether the image is upright (droite) or inverted (inversée)
• If the image is enlarged (agrandie) or reduced (réduite)
• The relationship between object and image distances

Vocabulary: A'B' represents the image size, while AB represents the object size in magnification calculations.

Page 1: Optical Conjugation Relationships

The first page introduces the fundamental optical conjugation relationship and its mathematical expressions. It details various formulas for calculating distances and focal lengths in optical systems.

Definition: The relation de conjugaison is a mathematical relationship between object distance, image distance, and focal length in an optical system.

Vocabulary: OA represents the object-lens distance, while f denotes the focal length of the lens.

Example: When calculating focal length $f$, the formula uses the relationship between object and image distances: 1/f = 1/OA + 1/OA'

Highlight: The relationship can be expressed in different forms, including as a linear equation y = ax + b, making calculations more straightforward.