An "upright" image in geometric optics refers to an image that maintains the same orientation as the object, as opposed to an "inverted" image, which is flipped upside down. Additionally, "laterally inverted" describes an image that is reversed from left to right. These terms help categorize images formed by lenses and mirrors based on their orientation relative to the object. Understanding these concepts is essential for studying image formation in optics. Clear definitions of these adjectives enhance comprehension of geometric optics principles.
