Lens unit and see-through type display apparatus including the same

摘要

Disclosed are a lens unit, a see-through display device, and an electronic device including the same. The see-through display device is able to include: a see-through type optical system; and an incident light-dependent lens part placed between the optical system and visual organs of the user. The incident light-dependent lens part is able to indicate different characteristics depending on the characteristics of the incident light. The incident light-dependent lens part is able to have the first refractive power for light of a first path and have a second refractive power for light of a second path, which is different from the first refractive power. The incident light-dependent lens part is able to include: a first lens having a variable focal distance depending on the polarizing direction of the incident light; and a second lens installed near the first lens to have a constant or substantially constant focal distance regardless of the polarizing direction.