I What does "upright" mean in geometric optics?

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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.
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if someone want to explain to me what is an upright image ? , and what are the other adjectives to define an image in geometric optics and their meaning , Thanks .
 
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A quick Google will straighten that out for you.

Hint: the opposite of 'upright' is 'inverted'.
 
DaveC426913 said:
A quick Google will straighten that out for you.

Hint: the opposite of 'upright' is 'inverted'.
Also ‘laterally inverted’ is a good description in many circumstances. All three terms are probably easier to recognise than to describe.😉
 

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