Patent ID: 6538624
Filing Date: 2003-03-25
Classification: G02B,G09B

Abstract:
A head-mounted image display apparatus for mounting on a head of a user with eyes having a horizontal line of vision, the apparatus comprising:an image display unit for forming an optical image; an enlarging lens for focusing said optical image to the eyes; said image display unit and said enlarging lens being positioned on an optical axis formed at an angle of depression relative to said eye's horizontal line of vision; a diopter adjustment unit that moves said image display unit relative to said enlarging lens along said optical axis while maintaining said angle of depression of said optical axis relative to said eye's horizontal line of vision; first and second image display units; first and second enlarging lenses; and first and second diopter adjustment units, said first diopter adjustment unit operating independently of said second diopter adjustment unit to move said first display unit, and said second diopter adjustment unit operating independently of said first diopter adjustment unit to move said second display unit.