The history of three-color photography (1925)

742 General Index PAGE Panchro plates, safe-lights for 67 Panchro sensitizers 220 Panchromatic plates 19, 68 Panchromatizing plates 246, 269 Pantochrome 262, 512 Paper backing 513 Paper, celluloid coated 427 Paper cine support 623 Paper coated with zinc oxide 428 Papers, color-sensitive photometric 306 Paper expansion 324, 328, 427 Paper for pinatype 393 Paper, substratum for 428 Paper, translucing 341 Parabolic lenses 19<S Parallax 145, 169, 183, 207,596 Parallax error, screen-plate 463 Parallax, screen-plate 546 Parallax system 452 Parallax transparencies 452 Parallel face filters Paris blue Partially silvered reflectors... Patents, filter Patents, screen-plate printing Patents, sensitizing , Pattern of screen-plates Payne's inks Peacock blue ink , Penrose's ratiometer Perforated filter Perforated reflector 11, 26, 28, 94 71 145 552 275 458 21 26 103 101 149, 192, 642 Perforations, registration by 653 Perhydrol 304 Period, object 461 Period, screen 461 Permanence of inks 21 Persistence of vision 8, 583 Persulfates dissolve gelatine 356 Perxanto plate 274 Phenakistoscope 8, 584 Phenosafranin 296 Phenyl-osazone, glucose 88 Photo-ceramics in colors 428 Photochromoscope 4, 43, 106, 107, 108, 145 Photochromoscope filters 17 Photographic inertia 19 Photogravure 24 Photomechanical cine films 620 Photomechanical lantern slides 449 490 145 294 306 523 Photomechanical screen-plates Photometer Photometers, tube Photometric papers, color-sensiti Photomicrography, Autochrome Photomicrographs, color 453 Photomicrography, filter for 101 Photopolygraphy 414 Phthalein dyes 248 Physical intensification, screen-plate 527 Physiological colors 14 Physiological primaries 14 Photopolychromoskop, Zink's 113,114 Photo-mezzotint 438 Picrate of ammonia filter 70 Picric acid as desensitizer 304 Pigment sensitometers 287 Pigments, complementary 13 Pigment difficulty 44 Pigment foils Pigments for bi-gum Pigments, mixing lights and Pigments, resinous carbon .. Pinachrom-bathed plates Pinachromy Pinatype Pinatypes and cyanotypes Pinatype and ozobrome Pinatypes, bromoil bleach for 422, 19, 547, 391, 394, 327 425 33 335 20 562 448 398 ins .. 397 Pinatype celluloid films 395 Pinatype dyes 391,396 Pinatype, hardening films for 396 Pinatype, modified 394 Pinatype negatives 395 Pinatype, non-extensible support 402 Pinatype, opaque support 395 PAGE Pinatype, ozo 395 Pinatype, paper for 393 Pinatype plates, decolorizing 394 Pinatype print-plates 391 Pinatype prints, fixing 394 Pinatype prints, screen-plate 547 Pinatype, resinous dyes for 398 Pinatype, rigid support 398 Pinatype, simplification of 395 Pinatype transparencies 395, 448,453 Pinorthol 282 Pins, registration by 653 Plano-convex correctors 150 Plates, bathing 263 Plates, color-sensitive gelatin 245 Plates, desensitizing 295 Plate filters 95 Plate, Flavin 274 Plates, home-sensitized 269 Plates, hypersensitizing 271 Plates on circular disk 130 Plates on triangle 135 Plates, ophthalmochromatic 270 Plates, panchromatizing 246, 269 Plates, screened 274, 282, 321 Plate tester, Chapman Jones 251 Plates, testing color-sensitive 287 Plate, _ Viridin 274 Platinized mirror 120 Plurality of films 596 Pointilliste school 454 Polarized light 617 Polychromide process 402 Polyfolium chromodialytique 154 Pore-filling substances, imbibition 396 Positives, cementing 445 Positives, inert powder in 441 Positive superposed on negative 593, 637 Potassium silicate substratum 68 Powder process in colors 426 Precipitating collodion emulsion 229 Predominance of color 23, 27 Predyeing reliefs 445, 453 Preliminary ammonia bath 245 Preparation of paper support 427 Primaries, physiological 14 Primary blue 14 Primary colors 14, 41 Primary color sensations 12 Primary green 14 Primary image 135 Primary red 14 Primary sensation curves 15 Primulin process 420 Printer, variable light 597 Printer, symmetrical 637 Printing ink absorptions H Printing inks 10, 23 Printing machine, selecting 632 Printing Autochrome plate with leuco bases 423 Printing, contact 645 Printing double-coated stock 644, 646 Printing, optical 645 Printing patents, screen-plate 552 Printer, projection 648 Printing-out paper, reliefs on 335 Printing screen-plates 402, 539, 696 Printing through support 324, 325, 327 Printing, typographic 13 Printing with leuco-bases 422 Printing with ultra-violet 648 Print-plates 345, 355 Print-plates, pintaype 391 Print-plate v reliefs 390 Prints, cementing constituent 330 Prints, registration of 332 Prismatic dispersion process 655 Prismoids 589 Prisms 186,642 Prisms, annular 171 Prism block 172, ISO, 195, 593 Prisms, curved-face 13] Prism condenser 593 Prism, equilateral 131 Prisms, erecting 206