Matches 351 - 400 out of 411 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
3644030 LIGHT SOURCE SYSTEM  
A light source system for a projection system wherein a reflecting mirror having an observation window formed through a center portion thereof is inclined in front of a projector and an object...
3642359 TRANSPARENCY DISPLAY APPARATUS  
Transparency display apparatus is disclosed including a transparency storage device for protecting transparencies during transport and for facilitating display of transparencies upon an overhead...
3600076 LIGHT BRUSH  
An optical projection device is provided with means to create and vary a light image. The image can be varied in form, number, color, attitude, focus, and illumination intensity. The image can be...
3598482 OPTICAL PROJECTION SYSTEM  
An optical projector having a mirror which reflects light from a light source into a projection system, and which has an optical object formed on the reflective face of the mirror at a location to...
3580126 LIGHT DISPLAY INSTRUMENT  
A device for producing esthetically pleasing patterns of light which is controllable like a musical instrument. The device includes an elastically stretchable reflective mirror surface which is...
3575499 PREVIEWING APPARATUS  
A light-transmitting apparatus for a projector to improve the resolution and color of a transparency being focused on a previewing screen wherein an inner spherical wall portion that terminates at...
3547530 OVERHEAD PROJECTOR  
3536393 TRANSPARENCY DISPLAY APPARATUS  
3536391 FLARE CONTROL SHIELD FOR AN OVERHEAD PROJECTOR  
3535032 TABLE TOP VIEWER  
3532425 GRAPHIC DISTORTION APPARATUS  
3514198 APPARATUS FOR PREVIEWING SLIDES  
3510214 ADAPTER ACCESSORY FOR OVERHEAD PROJECTORS  
3507572 PROJECTION HEAD  
3488113 OPTICAL PROJECTOR  
3486817 OVERHEAD PROJECTOR  
3482911 IMAGE PROJECTION APPARATUS  
3479116 FILM VIEWER  
3477784 RADIOGRAPHIC MICROFILM PROJECTION DEVICE  
3469909 DEVICE FOR CARRYING OUT OBSERVATIONS OF AN IMAGE FORMED ON AN IMAGE FORMING SURFACE  
3458252 OPTICAL PROJECTION SYSTEM  
3453043 IMAGE ROTATING DEVICE  
3402262 MULTIPLE VIEWING SYSTEM FOR EDUCATIONAL TELEVISION AND THE LIKE  
3401593 Projection system for reflected images utilizing polarized light  
3385162 High efficiency mirror projection system  
3381575 Electric projection lamp  
3366005 Portable dual display plane projector apparatus  
3358553 Optical system for tape projectors  
3336681 Image maker and method for creating images and coding  
3334957 Head for overhead projectors  
3332317 Chalk screen image projector  
3323415 Optical paste-up aligner  
3316803 Three dimensional volumetric display means  
3308715 Projection system and equipment  
3302515 Projection apparatus or system provided with concave reflector  
3302516 Transmission screen attachment for projectors  
3293982 Overhead projector with an unsymmetrical reflective supporting stage  
3293983 Non-stereo depth perception projection display device  
3246943 Method of and apparatus for image projection  
3241440 Illumination system  
3239660 Illumination system including a virtual light source  
3226539 Bubble chamber illumination means  
3209646 Portable overhead projecting apparatus  
3177766 Mirror for rear view projector  
3173985 Method of reflection for producing a pleasing image  
3164058 Film projector and optical system therefor  
3143035 Projector  
3131595 De-magnifying optical system for transparency projection  
3099935 Audio-visual device-projecting machine  
3076377 Optical projector system  
Matches 351 - 400 out of 411 < 1 2 3 4 5 6 7 8 9 >