公开(公告)号：DE60118846T2

公开(公告)日：2006-11-09

申请号：DE60118846

申请日：2001-02-15

Applicant: IBM

Inventor： BUDD RUSSEL A ,  DOVE DEREK B ,  LOVAS ISTVAN ,  OYLHA ROBERT S ,  POWELL CARL G

IPC: G02B5/04 ,  G02B27/01 ,  G02B1/10 ,  G02B5/10 ,  G02B5/30 ,  G02B17/08 ,  G02B27/00 ,  G02B27/02 ,  H04N5/64

Abstract: A head mounted virtual image display unit is provided which is compact in size and weight, and incorporates a high performance optical system offering a clear see-through capability. A sliding light shield may be incorporated for those instances when see-through capability is not desired. A focus adjustment may be incorporated to permit the focusing of the image, for example, at a distance of approximately 18 inches to infinity. An adjustable headband may be incorporated that adapts to fit the users head. A flexible boom (200) structure may be incorporated to facilitate fine positional adjustment of the optical assembly. A slider and ball joint mechanism may also be incorporated to facilitate positional adjustment of the optical assembly. A built-in microphone may be incorporated to enable speech input by the user. The head mounted virtual image display unit may be used comfortably in conjunction with eye or safety glasses, and provides a useful image to the user without blocking his view of the surrounding environment. The unit is designed to have a pleasing appearance so as to greatly enhance user acceptability.

公开(公告)号：DE60118846D1

公开(公告)日：2006-05-24

申请号：DE60118846

申请日：2001-02-15

Applicant: IBM

Inventor： BUDD RUSSEL A ,  DOVE DEREK B ,  LOVAS ISTVAN ,  OYLHA ROBERT S ,  POWELL CARL G

IPC: G02B5/04 ,  G02B27/01 ,  G02B1/10 ,  G02B5/10 ,  G02B5/30 ,  G02B17/08 ,  G02B27/00 ,  G02B27/02 ,  H04N5/64

Abstract: A head mounted virtual image display unit is provided which is compact in size and weight, and incorporates a high performance optical system offering a clear see-through capability. A sliding light shield may be incorporated for those instances when see-through capability is not desired. A focus adjustment may be incorporated to permit the focusing of the image, for example, at a distance of approximately 18 inches to infinity. An adjustable headband may be incorporated that adapts to fit the users head. A flexible boom (200) structure may be incorporated to facilitate fine positional adjustment of the optical assembly. A slider and ball joint mechanism may also be incorporated to facilitate positional adjustment of the optical assembly. A built-in microphone may be incorporated to enable speech input by the user. The head mounted virtual image display unit may be used comfortably in conjunction with eye or safety glasses, and provides a useful image to the user without blocking his view of the surrounding environment. The unit is designed to have a pleasing appearance so as to greatly enhance user acceptability.

公开(公告)号：FR2284890A1

公开(公告)日：1976-04-09

申请号：FR7519001

申请日：1975-06-12

Applicant: IBM

Inventor： HEIDRICH PAUL F ,  POWELL CARL G

IPC: G02B6/30 ,  G02F1/335 ,  G02B5/14 ,  G02B27/00

Abstract: A coupler for coupling optical energy transmitted by optical fibers to a thin-film optical waveguide and a method of manufacture. In the method an optical fiber is sandwiched between a pair of substrates and the substrates and fiber are bonded together with a suitable material. The bonded product is then cut to provide a surface including a cross section of the fiber. After polishing this surface a thin-film optical waveguide is then provided on the surface including the fiber end. The cutting angle is chosen such that, in the assembled coupler, the exit angle with respect to the waveguide surface is greater than the critical angle of the guide material. In this fashion the optical energy coupled from fiber to guide is trapped in the guide.