Lynde, Carleton John, b. 1872, Gilbert, Alfred C. (Alfred Carlton), 1884-1961 · New Haven, Conn. : A.C. Gilbert Co. · leaf 122
The ProjectingLantern (Fig. 180)consists of a light-proof box, a sourceof bright light, a con-densing lens, a lanternslide, and a projectinglens. The bright light, Fig. 180. A projecting lantern produced by eleCtriC- From Lyndes Physics of the Household, published m t by The Macmiiian Co. lty,… … Fig. 181. You make a postcard lantern here, by a limelight,is converged on thelantern slide by thecondensing lens andan image of the in-verted slide is thrownon the screen by theprojecting lens. The Postcard Lan-tern consists of alight-proof box, twoelectric lights whichthrow light on the postcard…
Light · Scientific recreations
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