Back to results
US 4,066,884 AGranted
Multiple light intensity flash unit
AssigneeInternational Telephone and Telegraph Corporation
InventorRobert L. Taylor
Life of this patent
Estimating the term…
Abstract
A multiple light intensity electronic flash unit for self-developing camera uses a slidably mounted neutral density filter to vary the effective light intensity of the flash. The flash unit enables the camera to be operable when subjects are close to the camera without overexposing the film.
Claims7
A multiple light intensity flash unit for a camera comprising:
- a housing;
- a flash lamp mounted in said housing;
- a light altering member slidably coupled in said housing;
- an actuator arm coupled to said light altering member, said actuator arm accessible from without said housing;
- a detent member coupled to said light altering member for retaining said light altering member in a first position in front of said flash lamp;
- and
- a spring coupled to said light altering member and to said housing for returning said member to a rest position away from said lamp.
4 more elements
A multiple light intensity flash unit for a camera comprising:
- a housing;
- a flash lamp mounted in said housing;
- a light filter slidably coupled in said housing;
- an actuator arm coupled to said light filter, said actuator arm accessible from without said housing;
- a detent member coupled to said light filter for retaining said light filter in a first position in front of said flash lamp;
- a spring coupled to said light filter and to said housing for returning said member to a rest position away from said lamp;
- connector means depending from said flash unit for mechanically and electrically connecting the flash unit to the camera;
- and
- circuit means within the flash unit for igniting said flash lamp in response to operation of the camera.
6 more elements
Dependencies are inferred from the claim text.