Which type of lens forms always a virtual image?

A convex lens consistently generates a virtual image when the object is positioned within its focal length. This virtual image is always upright and appears on the same side as the object. Light rays passing through the convex lens diverge, creating the illusion of the image originating from behind the lens. Thus, whether near or far, a convex lens forms a virtual image that cannot be projected onto a screen, providing a visual representation that’s not tangible but appears as if located behind the lens.