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372 results for "op" in Creator.

Found in catalogs (50+)

• Educational Screen 1941 — page 240

  Page 236 The Educational Screen Student Operation of Visual Education Equipment THIS article concerns the operation of visual and audio equipment in a high…

• Educational Screen 1935 — page 14

  …The number and variety of operations mount into hundreds and each operation may have different methods of approach and procedure depending up- on the…

• Educational Screen 1948-1949 — page 13

  an opaque projector comes ni An opaque projector is the primary projector for classroom use. No other type of projector can serve the same…

• Educational Screen 1948-1949 — page 541

  OFFICIAL FILMS OPERAS and CONCERTS produced and priced for visual education programs in public and private schools. Introducing great operatic and concert works... via…

• Educational Screen 1946-1947 — page 975

  …for brilliant pictures from opaque objects and slides PRINTED illustrations, text, photographs, drawings, and many other opaque ob- jects, including geological and botanical specimens…

• Educational Screen 1926-1927 — page 241

  …As the Bausch & Lomb Optical Company at that time was the only firm in the country making usable optical glass, the Council of National…

• Educational Screen 1946-1947 — page 1001

  …for brilliant pictures from opaque objects and slides PRINTED illustrations, text, photographs, drawings, and many other opaque ob- jects, including geological and botanical specimens…

• Educational Screen 1941 — page 241

  June, 1941 Page 237 operators, including the trainees, are required to be present at the meetings. The club meets each week on Tuesday morning…

• Educational Screen 1944-45 — page 669

  June, 1945 Page 217 ANNOUNCEMENT WE are proud to announce that the Spencer Lens Company will operate under the name of its parent company…

• Educational Screen 1942 — page 113

  …His machine operators are all stu- dents. He has available three operators for every period in the day. Two years back the operators were…

• Educational Screen 1951,1952,1953 — page 480

  NEW Beseler TEACHING AID Mailed FREE to you on request OPAQUE PROJECTION PRACTICES is a free service bulletin; a literary clearing-house of visual…

• Educational Screen 1951,1952,1953 — page 656

  i NEW Beseler TEACHING AID Mailed FREE to you on request OPAQUE PROJECTION PRACTICES is a free service bulletin; a literary clearing-house of…

• Educational Screen 1950 — page 207

  Picto-Aids fascinate children This outstanding new teaching material is prepared by experts for use with ALL Opaque Projectors The first in a series…

• Educational Screen 1951,1952,1953 — page 615

  NEW Beseler ■mm TEACHING AID Mailed FREE to you on request OPAQUE PROJECTION PRACTICES is a free service bulletin; a literary clearing-house of…

• Educational Screen 1951,1952,1953 — page 1112

  mat's all this lYTE OPAQUE PROJECTION? 1 f It's the topic of the day, in educational circles at every teaching level. The…

• Educational Screen 1944-45 — page 759

  …Through Optical Science Today, science, using the methods made possible by optical instruments, helps you live a longer, healthier and happier life. Today, your…

• Educational Screen 1940 — page 381

  November, 1940 Page 365 B&L BALOPTICONS LR AND ERM n£4AJ^ B&L Balopticons ERM for opaque objects only and LRM for both…

• Educational Screen 1940 — page 194

  Page 182 The Educational Screen B&L BALOPTICONS LRM A^D ER arith vhedjQ n£4^ B&L Balopticons ERM for opaque objects only…

• Educational Screen 1948-1949 — page 367

  …MODEL O A liglitweight, inexpensive opaque projector specially de- signed for projection to small groups. MODEL OA2 A combination opaque and slide projector that…

• Educational Screen 1938 — page 185

  …S. «^ current OMl AN AMPROSOUND TO MEET ve' NEED nprosound Model "M" — 500 WaH Lamp — AC-DC Operation. ir home entertainment, classroom instruction and…

• Educational Screen 1951,1952,1953 — page 568

  i NEW Beseler TEACHING AID Mailed FREE ^ to you on request OPAQUE PROJECTION PRACTICES is a free service bulletin; a literary clearing-house of…

• Educational Screen 1926-1927 — page 895

  AMONG THE PRODUCERS 2r>i Analysis of Ten Types of Equipment Size ot "Opti- ence" SHII pictures or photo- graphs. Individ- ual use Type…

• Educational Screen 1941 — page 54

  Page 48 BAUSCH The Educational Screen & LOMB BALOPTICONS for every still projection purpose Whether you use lantern sHdes, opaque objects or strip fihn as…

• Educational Screen 1948-1949 — page 625

  take over the operation of projection e([uipnient when it is used. 3. He may. if he chooses, rely upon student operators from the…

• Educational Screen 1939 — page 171

  …A few of the children had heard all or part of the opera over the radio, given by local Italian opera groups, or on…

• Educational Screen 1940 — page 98

  THE NEW ERM AND LRM BALOPTICONS Have Built-In-Blower Cooling System Located in the forepart of the base, out of the operator's…

• Educational Screen 1940 — page 93

  …BALOPTICON LRM Slides and Opaque Material Balopticon LRM is a combined slide and opaque projector with balanced illumination to avoid eye- strain. No great…

• Educational Screen 1948-1949 — page 108

  …Balanced illumination permits switching from opaque to slide projection without a distracting change in screen brilliance. Slides and opaque materials are protected from heat…

• Educational Screen 1944-45 — page 101

  …Opti-onics is OPTIcs . . . elec- irONics . . . mechanics. It is re- search and engineering by Bell & Howell in these three related sci- ences to accomplish…

• Educational Screen 1951,1952,1953 — page 240

  …Operators Our system is operated by a staff of three. The chief operator is a young man who accumulated some electronic experience while with…

• Educational Screen 1948-1949 — page 61

  …Balanced illumination permits switching from opaque to slide projection without a distracting change in screen brilliance. , Slides and opaque materials are protected from heat…

• Educational Screen 1948-1949 — page 309

  FOR MAKING US WHAT WE ARE TODAY We sincerely believe that your recognition and response to opaque projectors as the primary projectors in visual…

• Educational Screen 1926-1927 — page 315

  May, 1926 Advertisement 311 Model CRM $100.00 Combined Balopticons For Projecting Both Slides and Opaque Objects THESE two lanterns rep- resent the type…

• Educational Screen 1957-1958 — page 429

  …This is used to make operation and adjustment of 16mm projectors easier for operators. The instructor should use the machine it- self for this…

• Educational Screen 1932 — page 51

  February, 1912 Page 43 container, the gate is pulled open, the film is passed between the |>Iates of glass, is guided so that the…

• Educational Screen 1944-45 — page 203

  …Within a few weeks Joe is ready to operate the slide machine and the opaque machine. However, the training for the movie projectors is…

• Educational Screen 1932 — page 14

  Page 8 The Educational Screen (D) How does "daylight" projection, through trans- lucent screen, differ from projection on opaque screen? For so-called daylight…

• Educational Screen 1948-1949 — page 424

  …Never has an opaque projector been so amazingly successful as the Beseiei Model OA3. This outstanding opaque projector has met with an enthusiastic reception…

• Educational Screen 1935 — page 297

  …B & L Model KOSB Balopticon for projection of opaque objects or lan- tern slides with res:ular or translucent screen. CS B & L Balopticon…

• Educational Screen 1954,1955,1956 — page 545

  …fifty times that number were instructed in the latest operative and clinical technicjues. The TV camera in the operating room used three different lenses…

• Educational Screen 1951,1952,1953 — page 580

  …The Miss Jones in this school was really teaching with the opaque projector. Effective use of the opaque projector, as briefly de- scribed in…

• Educational Screen 1948-1949 — page 744

  …they have precision optics, they are built to last and they are made by one of the world's leading optical instrument manu- facturers…

• Educational Screen 1954,1955,1956 — page 890

  MANLY CLA55UOOM FILMS . .. \ NODTHEAST IOWA'S CO-OPEttATIVE FILM LIBBACV .,, ^ "^'"•^^^Jg^jjQUAQTERS AT EAST HIGH SCHOOL,WATERLOO V - 1 THE COOP m\ to eat…

• Educational Screen 1951,1952,1953 — page 1243

  …All optical elements guaranteed against Signea heat breakage. Amer- ican Optical makes Organization the most complete line of still projectors, Addt«»» __.. LARGE APERTURE "C…

• Educational Screen 1954,1955,1956 — page 191

  …The "Opaque 1000 " ia of all-metal construction. It is strong and sturdy—yet weighs only 38 pounds. EASY TO OPERATE. Any student or…

• Educational Screen 1954,1955,1956 — page 97

  …The "Opaque 1000" is of all-metal construction. It is strong and sturdy—yet weiglis only 38 pounds. EASY TO OPERATE. Any student or…

• Educational Screen 1951,1952,1953 — page 1033

  * » In acoustically treated sound-proof room, an op- erating HCA "400" Projector rotates as noise meter indicates noise level from every {H>sition. RCA…

• Educational Screen 1946-1947 — page 750

  …Opaque Materials for Motivation We used opaque materials to help motivate a group of boys and girls in the weekday school to buy a…

• Educational Screen 1946-1947 — page 211

  …American Optical Science Delineascope COMBINATION STANDARD AND OPAQUE SLIDE PRO- JECTORS (S, T, U) S. American Optical Delinea scope VA T. Bausch & Lomb LRM…

• Educational Screen 1935 — page 186

  …THE projection of three kinds of material is very important in the field of visual education ; namely, lantern slides, opaque material and microscopic material…