Image display device

An image display device comprising:

• a first display device configured to display a first image;
• an imaging optical system comprising:
• an input element configured to receive light emitted from the first display device, and
• an output element configured to receive light traveling via the input element and to emit light to form a real image corresponding to the first image;
• a second display device configured to display a second image;
• and
• an optical member configured to reflect light emitted from the imaging optical system and to transmit light emitted from the second display device, such that light emitted from the imaging optical system and reflected by the optical member travels in a same direction as light emitted from the second display device and transmitted by the optical member;
• wherein:
• the imaging optical system is substantially telecentric at a real image side,
• the first display device is configured such that the light emitted from the first display device exhibits a substantially Lambertian light distribution;
• and
• the imaging optical system and the optical member are configured such that the real image is formed between the imaging optical system and the optical member.