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Class 396/461 - Diaphragm blades open for focusing or viewing


Subclass of Class 396 - Photography
Definition: Subject matter having means for moving blades of a diaphragm
No. of patents: 25
Last issue date: 05/29/2012


NumberTitleIssue Date
8186895Impulse actuated MEMS devices
An apparatus, useful in, for example, a miniature camera, includes an object, e.g., an optical element such as a shutter blade, an actuator operable to apply an impulse to the object such that the object moves from a first position to a second position, and at least...
05/29/2012
7972070Impulse actuated MEMS devices
An impulse actuated device for, e.g., an optical element of a digital camera, includes an elongated flexure having a first end upon which the optical element is disposed, and an opposite second end fixed so as to constrain the element to move along an arcuate, relat...
07/05/2011
7832948Impulse actuated MEMS devices
An impulse actuated mechanism for, e.g., a digital camera shutter, includes a shutter blade disposed at a first end of a flexure having an opposite second end fixed so as to constrain the blade to move along a planar, relatively long, first trajectory between opposi...
11/16/2010
7559707Screen system
A screen assembly is disclosed including a case, a screen assembly, and a bracket assembly that supports the screen assembly within an interior region of the case. ...
07/14/2009
6930723Quantity-of-light adjusting apparatus
In a quantity-of-light adjusting apparatus having an iris and an ND filter which limit incident light, a control method for the quantity-of-light adjusting apparatus, and a computer program product providing a control program for the quantity-of-light adjusting appa...
08/16/2005
6547457Camera shutter unit
The camera shutter unit of the present invention comprises a diaphragm blade arranged to be capable of moving between a stopping-down position wherein an aperture is stopped down, and an evacuating position wherein the aperture is opened. A shutter blade ...
04/15/2003
6092431Rotary type driving device employing electromechanical transducer and apparatus provided with the rotary type driving device
A driving device (actuator) 10 includes a driving shaft 16 which is Linearly driven in the axial direction by a piezoelectric element 15 and two disks 18a and 18b which are made of an elastic material and fixed to a rotary shaft 17. Peripheral portions of...
07/25/2000
5878296Preview apparatus in single lens reflex camera
A preview apparatus in a single lens reflex camera is provided in which a mirror drive mechanism, a diaphragm drive mechanism, and a shutter are driven in association with the rotation of a single-revolution cam gear which is driven by a motor. When the r...
03/02/1999
5864725Control method of single lens reflex camera having preview function and single lens reflex camera
A method for controlling a single lens reflex camera having a preview function is provided in which a mirror drive mechanism, a diaphragm drive mechanism, and a shutter are driven in association with the rotation of a single-revolution cam gear which is d...
01/26/1999
5663839Zoom lens barrel having a rotatable diaphragm mechanism and a mechanism for correcting an aperture diameter during zooming
A zoom lens barrel has a first lens unit, a second lens unit sharing an optical axis with the first lens unit, a fixed barrel for containing the first lens unit and the second lens unit, a first lens unit shifting frame held in the fixed barrel so as to b...
09/02/1997
5140362Shutter for single lens reflex camera
A shutter for a single lens reflex camera performs exposure operation by means of a drive motor after closing once an opening responding to release operation from a state that the shutter opening is opened. Said shutter provides a drive member actuated by the ...
08/18/1992
4835558Position control device for use in a camera
A position control device which comprises a ratch wheel adapted to rotate in interlock with motion of an object to be positioned, a rotation detecting unit adapted to detect an amount of rotation of the ratch wheel, a combination solenoid provided with a ...
05/30/1989
4702583Drive device for lens barrel and diaphragm shutter
A drive device for a lens barrel and a diaphragm shutter is disclosed. The drive device of this invention comprises a stepping motor including a stator and rotors. The stator is constituted by a plurality of stator members disposed around a lens barrel, e...
10/27/1987
4470679Central shutter for cameras, especially professional cameras
On professional camera shutters, with an objective comprising a lens system defining an objective light passage, and a polygonal diaphragm, the leaves of which can be actuated by means of a diaphragm actuator control curve cam and in turn be pivoted out o...
09/11/1984
4443083Driving apparatus in a camera
In a single lens reflex camera having a reflecting mirror provided across the light path of a light beam travelling toward a film surface past the stop of a phototaking lens so as to be retractable from the light path, an apparatus for driving the stop de...
04/17/1984
4441800Driving system in camera
A portion of the driving force for the aperture control apparatus is used to accumulate mechanical energy as required to drive a certain particularly selected device which is to be operated after the operation of the aperture control apparatus. To this en...
04/10/1984
4354753Reflex camera having a focal plane shutter and an interchangeable variable shutter objective
Reflex camera having a focal plane shutter in the camera body and a time adjuster associated with the focal plane shutter, and an interchangeable variable central shutter objective and a time adjuster associated with the central shutter, the focal plane s...
10/19/1982
4354752Photographic camera
A photographic camera having a rear lens carrier with a ground-glass screen frame capable of receiving a separate film cassette insertable thereat, and having a front lens carrier frame provided with a between-the-lens shutter containing electromagnetical...
10/19/1982
4298266Interchangeable lens for cameras, such as reflex cameras
Interchangeable lens assembly having a composite two part telescoping force transmission shaft, which functions as a cocking and releasing member, which has one end engageable with the cocking member of the shutter system and the other end engageable with...
11/03/1981
4062029Lens shutter actuating device for quick-return type single-lens reflex camera
A single-lens reflex camera shutter having an operating ring driven in one direction by a gear-rack and pinion combination. The operating ring actuates the diaphragm and shutter blades and is stopped by a stop lever during the taking of an exposure. The s...
12/06/1977
4041511Driving device of lens shutter of single-lens reflex camera
A lens shutter for a quick-return single-lens reflex camera in which the diaphragm blades and shutter blades are operated by an operating ring driven rotationally in opposite directions by a driving device. The driving device has a pair of axially biased ...
08/09/1977
4012750Camera shutter with diaphragm and electro-magnetic drive for diaphragm
A camera shutter assembly is provided having segments which may be moved by electro-magnetic means. The diaphragm blades are also provided with electro-magnetic means and there are mechanical intermediate members so that the blades can be moved into an op...
03/15/1977
4005459Interlocked manual stop-down and mirror-up mechanism for single lens reflex camera
A manual stop button or depth of field button is coaxially mounted in a shaft portion of a self-timer charging lever, and a lens stopping-down operation is carried out by pushing the stop button into a predetermined depressed position when the self-timer ...
01/25/1977
3987472Bellows device having an automatic diaphragm-interlocking mechanism
A bellows device having an automatic diaphragm-interlocking mechanism comprises a camera mount, a bellows portion, a lens mount and a guide rail. The camera mount is provided with an interlocking lever operatively associated with the shutter mechanism of ...
10/19/1976
3961343Method and arrangement for manual stop-down mirror-ups of single lens reflex camera
A control assembly and method are disclosed for providing manual stop-down mirror-up operations in a single lens reflex camera having a camera ready condition wherein an automatic diaphragm arrangement normally biases a diaphragm operating member to a ful...
06/01/1976
 
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