Method and apparatus for photographing by artificial illumination

Claim 3

A method according to claim 1, wherein the shutter opening is changed by progressively increasing same between predetermined relatively closed and open positions.

Claim 4

A method according to claim 7, wherein said shutter opening is varied from a partially opened initial position to a progressively increasingly open position.

Claim 7

A method according to claim 4, wherein said shutter is regulated so as to be open during a period of time which is out of phase with the time period during which reflected light from selected near objects reach the shutter and so as to be open during a period of time which is in phase with the time period during which reflected light from selected distant objects reach the shutter.

Claim 8

A method according to claim 5, wherein the artificial illumination of said objects is carried out by means of a modulated light source.

Claim 9

A method according to claim 4, wherein the shutter is sequentially opened and closed according to a wave-form pattern selected from square, sinusoidal, repetitive exponential and triangular wave-forms.

Claim 10

Apparatus for photographing near and distant objects simultaneously by means of artificial illumination so as to produce images of substantially uniform brightness upon the film of a camera, comprising a camera having an electro-optic shutter, a source of artificial illumination, and means for regulating said shutter in predetermined synchronization with the actuation of said source of illumination, said regulating means being adapted to vary the shutter opening between predetermined relatively closed and open positions so as to admit a first proportion of the reflected light returned from a first object and a greater proportion of the reflected light returned from a second more distant object, whereby a greater attenuation of the reflected light returned to the camera from the near object is effected than of the reflected light returned to the camera from the more distant object.

Claim 11

Apparatus for photographing near and distant objects simultaneously by means of artificial illumination so as to produce images of substantially uniform brightness upon the film of a camera, comprising a camera having an electro-optic shutter, a source of artificial illumination, and means for regulating said shutter in predetermined synchronization with the actuation of said source of illumination, said regulating means being adapted to vary the shutter opening between predetermined relatively closed and open positions so as to admit a first proportion of the reflected light returned from a first object and a greater proportion of the reflected light returned from a second more distant object, whereby a greater attenuation of the reflected light returned to the camera from the near object is effected than of the reflected light returned to the camera from the more distant object.

Claim 12

Apparatus for photographing near and distant objects simultaneously by means of artificial illumination so as to produce images of substantially uniform brightness upon the film of a camera, comprising a camera having an electro-optic shutter, a source of artificial illumination, and means for regulating said shutter in predetermined synchronization with the actuation of said source of illumination, said regulating means being adapted to sequentially open and close the shutter in phased time relationship with the emission of illumination by said source of artificial illumination so as to admit a first proportion of the reflected light returned from a first object and a greater proportion of the reflected light returned from a second more distant object, whereby a greater attenuation of the reflected light returned to the camera from the near object is effected than of the reflected light returned to the camera from the more distant object.

Claim 13

Apparatus for photographing near and distant objects simultaneously by means of artificial illumination so as to produce images of substantially uniform brightness upon the film of a camera, comprising a camera having an electro-optic shutter, a source of artificial illumination, and means for regulating said shutter in predetermined synchronization with the actuation of said source of illumination, said regulating means being adapted to sequentially open and close the shutter in phased time relationship with the emission of illumination by said source of artificial illumination so as to admit a first proportion of the reflected light returned from a first object and a greater proportion of the reflected light returned from a second more distant object, whereby a greater attenuation of the reflected light returned to the camera from the near object is effected than of the reflected light returned to the camera from the more distant object.

Claim 14

Apparatus according to claim 9, wherein said source of illumination is a modulated light source.

Claim 15

Apparatus according to claim 10, wherein said light source is modulated by means of an electro-optic shutter provided therefor.

Claim 16

Apparatus according to claim 9, wherein said shutter is adapted for regulation such that the opening thereof can be sequentially varied in accordance with a wave-form pattern selected from square, sinusoidal, repetitive exponential and triangular wave-forms.

Claim 17

Apparatus according to claim 12, wherein said source of illumination is a modulated light source adapted to be modulated in accordance with a wave-form pattern selected from square, sinusoidal, repetitive exponential and triangular wave-forms.

Claim 18

Apparatus according to claim 13, wherein said light source is provided with an electro-optic modulator.

Claim 19

A method according to claim 1, wherein the shutter is sequentially opened and closed according to a wave-form pattern selected from square, sinusoidal, repetitive exponential and triangular wave-forms.