| 摘要 |
An optical zoom structure comprises at least one first optical set, at least one second optical set, and an image display area. The first optical set includes a first fixing focus set and a first liquid crystal lens, the first optical set present distributing optical effect. The second optical set includes a second fixing focus set and a second liquid crystal lens, and the second optical set presents a focusing optical effect. The second optical set is located between the first optical set and the image display area, and the first liquid crystal lens and the second fixing focus set are located between the first fixing focus set and the second liquid crystal lens. The distance between the first fixing focus set and the first liquid crystal lens is a first distance and the distance between the first liquid crystal lens and the second fixing focus set is a second distance. The distance between the second fixing focus set and the second liquid crystal lens is the third distance, and the distance between the second liquid crystal lens and the image display is the fourth distance. |
