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Matches 301 - 350 out of 385
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Match
Document
Document Title
301
3256875
Flexible gastroscope
302
3253505
Projection of images onto inclined screens
303
3235733
Photosensitive radiation tracker using plural prisms
304
3222515
Room light control
305
3195404
Anamorphosing optical system
306
3179797
Device for controlling glare in luminaire
307
3155979
Rotating prism optical system
308
3137794
Directionally sensitive light detector
309
3129895
Shielding prism
310
3089052
Cathode ray tube faceplate construction
311
3062103
Optical filter
312
3045542
Projection system corrected for marginal distortion
313
3038756
Window arrangements, particularly for engine driven vehicles
314
3001062
Light refractor
315
2983183
Beam combining prism
316
2981142
Prism art device
317
2975668
Optical scanning device
318
2966091
Industrial refractometers
319
2963936
Rear vision means having prismatic window
320
2949830
Photographic camera
321
2942538
Character presentation scheme for phototypographical machine
322
2882784
Conical refractor
323
2881654
Biconical refractor
324
2860542
Continuous motion picture apparatus, composite prism
325
2855819
Composite prisms and prismatic magnification systems comprising same
326
2843015
Prism magnification systems comprising three or more prisms
327
2829363
Automatic dew-point apparatus
328
2821111
Anamorphotic optical systems
329
2816480
Prism type anamorphoscopic device
330
2810323
Anamorphotic optical systems
331
2792751
Refracting compound prism anamorphotic optical systems
332
2767629
Optical device for a stereoscopic camera with a horizontal movement of the film
333
2705434
Wave-length indicator in spectral apparatus
334
2689298
Means for obtaining even illumination from a single source
335
2669916
Telemetric focusing device
336
2655832
Range finder adjusting mechanism
337
2494356
Apparatus for illuminating images for projectors
338
2446726
Range finder, height finder, and like optical observation instrument
339
2427996
Temperature compensator for refractometers
340
2405960
Collimating system
341
2396510
Stereoscope
342
2305777
Measuring prism for refractometers
343
2305776
Optical system for spectral apparatus with fixed deviation
344
2248758
Optical system for reducing the viewing angle of certain devices such as photoelectric cells
345
2212484
Telescopic instrument for the examination of body cavities
346
2206169
Light modulating system
347
2203647
Ornamental glassware
348
2150544
Device for deviating a pencil of light rays
349
2088660
Anamorphosing optical system
350
1961601
Biprism for spectroscopes
Matches 301 - 350 out of 385
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