US425812A

US425812A - Vignetter

Info

Publication number: US425812A
Authority: US
Publication date: 1890-04-15
Anticipated expiration: 1907-04-15

Description

(Na Model.)

H. J. LLOYD.

" VIGNBTTBR.

V N0. 425,812. Patented Apr. 15, 1890.

UNITED STATES PATENT OFFICE.

HAMLIN J. LLOYD, OF WVYALUSING, PENNSYLVANIA.

VIGNETTER.

SPECIFICATION forming part Of Letters Patent N0. 425,812, dated April 15, 1890.

Application filed May 15, 1388- Serial No. 274,011. (NO model.)

.aswill enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, Which form a part of this specification.

My invention relates to improvements in photography; and it consists of devices by which an operator is enabled to vignette the negative in the calnera during eXposure in such a Inanner as to produce a variety of differently-shaded vignettes, varying in any degree between black and White. This result I accomplish by suspendin g variously-shaded vignette boards or plates in front of the lens during exposure, thereby vignetting the negative in the camera-box of a shade corresponding to the shading on the vignette-board.

In the drawings similar letters rei'er to similar parts throughout.

Figure l is a vieW of a portion of a cameraboX and lens With an arln attached thereto carrying a frame in which the vignette board or plate is suspended. Fig. 2 shows the arm and frame detached with a vignette-board in place. Figs. 3 and Li represent two diferentlyshaded vignette boards or plates, illustrating the manner in Which I prepare vignette boards or plates to produce in the calnera during exposure a great variety of graduallyshaded negatives. Fig. 5 is an enlarged detail view.

A is a set-screw passing through slot S for attaching the arm O to the camera-box M, by means of Which the attachment is easily fastened to or removed from the box M.

D is the frame in Which the vignette-board is suspended, and K its arln or handle.

C represents an arm eXtending 'from the camera-box.

B is a set-screw, G its washeland E its nut, by means of which the frame D is held to and adjusted in the arm.

The arm O is slotted both perpendicularly and horizontally, the perpendicular slot extending to the outer end of the arm, and the horizontal slot being closed at the Outer end and provided with a square-cut groove g on one side along the slot S, adapted to receive the nut E and prevent its turning with setscrew B. Then the screw is loosened, the nut slides along the groove g as the set-screw is moved back and forth along the slot S,carrying With it the frame D. Through the perpendicular slot P the frame 'D is suspended by its arm or handle K, and is held in place and adjusted in the desired position as to height, distance from, and inclination to the lens L by the set-screw B. By the slot l? being cut through to the end of the arm O sufficient elasticity is given to the sides of the arln to allow them to press arm K and hold frame D in position by tightening set-screw B.

F, II, and J represent thin plates, of cardboard, metal, wood, or other suitable material, provided with central openings I to adlnit rays of light from the Object being photographed. By suspending one of these boards or plates in front of the camera With its colored or shaded side facing the lens the negative in the camera is vignetted a graduated shade.

A great variety of diiferently shaded vignettes can thus be produced by differently-shaded plates, two styles of which are shown in the drawings, Figs. 3 and 4.

By differently-shaded plates any degree of shade between white and black can be produced on the negative, thus producing a picture eorresponding to the shade on the plate, though it may not be like the plate, for if a plate with parallel lines, as shown in Figs. 3 and 4:, is used, the black lines or strips blend with the white and produoe a beautiful shade on the negative, and if the plates are shaded in checks or squares another style of shading is produced on the negative, and so on.

By means of the set-sorew B and slots in the arm C the frame D, carrying the plate F, can be adjusted to any required inclination to and distance from the lens of the camera.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, isl- 1. In combination with a camera, a device IOO for Vignetting Varionsly shaded negatives able vignette board or plate With a central While in the camera, consistil'lg` of a shaded opening' thereil and gradnated from light to board or plate gradnated from light to dark, dark, and adapted to be adjnsted between the held or suspended in frontof the lens during' lens and the Object being' photographcd, snb- I 5 5 eXpOsnre,Snbstantially as shown and set forth. stantially as set forth.

2. In combination With a camera and a In testmonywhereof Iafiixmy Signature in shaded vignette board or plate, the bifnrcated presence of two Witnesses.

arm O and adjustable snspendin` device D, I'IAMLIN J. LLOYD. provided With a siotted arm K, snbstantially VitnesSes: Io as set forth. IL' XV. MYER,

3. In combination With a camera, a remov- JOHN G. CULVER.