Portable Lamps - Their Design And Use - edizione con copertina flessibile

PORTABLE LAMPS Portable lamps the Jiome-fires of the electrical age are vitalized ornaments whose existence is fur ther justified by usefulness. Through the power and charm of light they do much toward making a house a home. PORTABLE LAMPS THEIR DESIGN AND USE BY M. LUCKIESH DIRECTOR, LIGHTING RESEARCH LABORATORY, STATOONAL LAMP WOHKS OF GENERAL ELECTRIC CO. Author of The Book of the Sky, Lighting the Home, Artificial Light, Color and Its Applications, Light and Shade and Their Applications, etc. NEW YORK E. P, BUTTON COMPANY 681 FIFTH AVENUE PREFACE The portable lamp is rapidly growing in popularity as a means of lighting the home and its increasing use is supported by many sound arguments. Nearly every lighting problem in the home can be successfully solved by means of properly designed portables. The lighting effects obtainable can be varied considerably by altering the form of the shade and the equip ment concealed within it. Furthermore, port able lamps can satisfy any artistic require ments as well as perform the various purely utilitarian functions. By means of portable lamps artificial light is permitted to assume its important place in a decorative scheme. Many families live in rented apartments and portable lamps permit them to enjoy their own taste in lighting. The householder can weave individu ality into lighting by spending time and money v PREFACE in developing portable lamps which will follow Mm to Ms next residence. The mobility of portable lamps also makes tMs kind of lighting the most flexible for the arrangement of fur niture is not fixed by so-called lighting fixtures. Finally, portable lamps make it possible to vary the lighting to snit the mood or the occasion. Infact they have much to commend them in helping to make a house a home and it is the hope that this little volume will aid the house holder and others in designing, in purchasing, and in using them, M. LTTCKIESH. November 23, 1923. vl CONTENTS CHAPTER . BAGB I PORTABLE LAMPS 1 II PRiircipi ES OF DESIGN-30 HI PEDESTALS 65 IV LAMP-SHADES 78 V USES IK VARIOUS ROOMS 98 VT NOVELTIES 125 VII LIGHT-SOURCES 135 ILLUSTRATIONS Portable Lamps the Home-Fires of the Electrical Age Are Vitalized Ornaments Whose Existence Is Further Justified by Usefulness . . . Frontispiece FIGURE PAGE 1. A Variety of Portables for Many Purposes . 10-11 2. Adequate Wiring of Basement 19 3. Adequate Wiring Properly Providing for Many Portables 21 4. Adequate Wiling of Second Moor .... 22 5. Showing the Principal Related Dimensions Which Determine the Usefulness of a Portable Lamp 40 6. Portable Giving a Wide Spread of Light . . 43 7. The Closed-Top Cylindrical or Drum Shade Showing Component of Direct Light ... 45 8. Showing the Effect of Two Light-Sources . . 47 9. Illustrating the Upward Component of Light from Open-Top Shades also the Direct Down ward Component 54 10. A Portable Designed to Provide Indirect Light ing as Well as Direct Light . 55 11. A Direct-Indirect Portable 57 12. A Simple Indirect Lighting Portable with an Opal Glass Shade Which Diffuses Some Light to the Exterior Decorative Shade .... 59 ix ILLUSTRATIONS FIGURE PAGE 13. The Light-Source Is Shielded by an Opaque Reflector, B. The Light Is Reflected from the Inner Surface of Shade S 63 14. Wood Pedestal with Burnished Gold Highlights 67 15. Polychrome Pedestal 68 16. Wrought Iron Table Lamp with Soft Old Flor entine Finish. Blue and GoldTwenty-Four Inch Silk Shade 71 17. A Vase for Pedestal 72 18. Wrought Iron Pedestal and Mica Shade ... 81 19. Empire Shade 83 20. Shallow Empire Shade 83 21. Extremely Shallow Empire Shade .... 83 22. Pyramidal Shade 84 23. Panelled Shades Cross-Sections .... 85 24. Glass Shade 96 25. Decorative Portables for Buffet ..... 103 26. At the Reading Table 105 27. A Floor Lamp Providing Both Downward and Upward Components of Light 106 28. An Excellent Portable for the Reader ... 108 29. A Useful and Ornamental Bridge Lamp, . . 109 30...