Camera attachment for enabling photographing of transparencies in a slide projector
OwnerJames S. Hurvitzinventor
Life of this patent
Estimating the term…
Abstract
A camera attachment for photographing color transparencies in a slide projector. The attachment includes an elongated tubular connector, one end of which is threaded to be attached in the lens mounting opening of a single lens reflex camera, and the other end is adapted to be received within the lens assembly receptacle of a slide projector, a lens assembly located in the connector intermediate the ends for focusing an image from a slide in the projector onto the film plane of the camera, a neutral density filter in the connector spaced from the lens assembly and a light diffusing screen to be placed in the projector between the slide and the light source.
Claims3
An attachment for connecting a single lens reflex camera to a slide projector to permit photocopying of a transparency at the slide station within the projector, said attachment including
- lens tube means adapted to be connected to the camera for producing a 1:1 image size ratio,
- a tubular member which is formed of two hollow tubes interconnected to permit relative rotational movement therebetween, said tubular member further being adapted to be received within the lens assembly receptacle of the projector,
- a macro lens connectable in series with the lens tube means and tubular member,
- a light diffusing screen adapted to be placed in the projector between the transparency and the light source of the projector
- a light filter connected in series with the lens tube means, tubular member and macro lens, and
- means associated with the tubular member which cooperates with the lens focusing mechanism of said projector for focusing the image of the transparency onto the film plane of the camera.
Dependencies are inferred from the claim text.