Matches 1 - 50 out of 54 1 2 >


Match Document Document Title
US20100321940 LIGHTING FIXTURE ZOOM DEVICE, AND LIGHTING FIXTURE COMPRISING SAID ZOOM DEVICE  
A zoom device for a lighting fixture has a first lens assembly of positive refractive power; a second lens assembly of negative refractive power; and a third lens assembly of positive refractive...
US20080062533 Airspace design evaluation  
A computer based method, system and computer program product to assign a quality metric to an airspace design and optionally to compare it against design metrics, to determine a comparative...
US20060056056 Automatically expanding the zoom capability of a wide-angle video camera  
A system for automatically expanding the zoom capability of a wide-angle video camera using images from multiple camera locations. One preferred embodiment achieves this using images from the...
US20090147376 ZOOM LENS SYSTEM, OPTICAL DEVICE WITH ZOOM LENS SYSTEM, AND METHOD OF MANUFACTURING ZOOM LENS SYSTEM  
A zoom lens system comprises, in order from an object, a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having...
US20090109546 Electronic imaging apparatus  
An electronic imaging apparatus comprises a zoom lens including at least two lens groups and adapted to implement zooming by changing the spacing between the respective lens groups, and an...
US20090225198 Image pickup apparatus provided with zoom lens  
An image pickup apparatus, which comprises, in order from the object side, an aperture member having an opening section, a zoom lens changing a magnification by properly changing distances between...
US20090244720 ZOOM LENS SYSTEM, OPTICAL DEVICE WITH THE ZOOM LENS SYSTEM, AND METHOD OF MANUFACTURING THE ZOOM LENS SYSTEM  
A zoom lens system has a front lens group and a rear lens group along the optical axis and in order from the object side. The rear lens group has a first lens unit having a positive refracting...
US20060285225 Zoom lens for DLP projector  
The invention relates to a zoom lens for DLP projector. The zoom lens of the invention comprises a focus group, a zoom group and a compensation group. The zoom group comprises three zoom units...
US20090052052 Zoom lens and image-capture device  
A zoom lens includes a plurality of lens groups having at least first, second and third lens groups arranged in order from an object side. The first lens group has a positive refractive power...
US20120087016 ZOOM LENS AND IMAGE PICKUP APPARATUS WITH ZOOM LENS  
A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a third lens...
US20110096409 ZOOM LENS SYSTEM, OPTICAL DEVICE WITH ZOOM LENS SYSTEM, AND METHOD OF MANUFACTURING ZOOM LENS SYSTEM  
A zoom lens system comprises, in order from an object, a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having...
US20100302651 ZOOM LENS  
A zoom lens including, in a sequence from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a succeeding lens group...
US20130286277 Zoom Lens and Image Pickup Apparatus Using the Same  
A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive...
US20120105966 ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS  
A zoom lens includes, in order from an object side along an optical axis, a first lens group G1 having positive refractive power, a second lens group G2 having negative refractive power, and a...
US20130258498 Zoom Lens and Image Pickup Apparatus Using the Same  
A zoom lens comprises in order from an object side, a first lens unit having a positive refractive power,a second lens unit having a negative refractive power, anda third lens unit having a...
US20120019930 HIGH-SPEED ZOOM LENS  
Embodiments of an optical zoom lens system may comprise three lens groups with a PNP power sequence. The first lens group may vary focus. The second and third lens groups may be movable to vary...
US20140313592 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING ZOOM LENS  
A zoom lens including a first lens unit having a positive refractive power, a second lens unit having a negative reflective power, a third lens unit having a positive refractive power, and a rear...
US20130208364 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING ZOOM LENS  
A zoom lens including a first lens unit having a positive refractive power, a second lens unit having a negative reflective power, a third lens unit having a positive refractive power, and a rear...
US20130169846 Zoom Lens and Image Pickup Apparatus Using the Same  
A zoom lens comprises in order from an object side, a first lens unit having a positive refractive power, and at the time of zooming from a wide angle end to a telephoto end, the first lens unit...
US20130038765 ZOOM LENS AND IMAGE PICKUP APPARATUS EQUIPPED WITH ZOOM LENS  
A zoom lens includes a first lens unit of a positive refractive power, a second lens unit of a negative refractive power, a third lens unit of a positive refractive power, and a rear lens group...
US20110102908 ZOOM LENS, IMAGING APPARATUS AND METHOD FOR MANUFACTURING ZOOM LENS  
A zoom lens comprising, in order from an object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; and a third lens group G3...
US20140160347 ZOOM LENS HAVING VIBRATION PREVENTION FUNCTION  
A zoom lens includes, sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having...
US20120300313 ZOOM LENS, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING ZOOM LENS  
Including, in order from an object side: a first lens group having positive power; a second lens group having negative power; and a third lens group having positive power, each distance between...
US20150234163 VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL DEVICE, AND METHOD FOR MANUFACTURING VARIABLE MAGNIFICATION OPTICAL SYSTEM  
A variable magnification optical system includes, in order from an object side, a first lens group having positive refractive power; a second lens group having negative refractive power; and a...
US20130100539 ZOOM LENS  
A zoom lens includes sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, an aperture stop, and a third...
US20120275035 ZOOM LENS AND IMAGE-PICKUP APPARATUS HAVING THE SAME  
A zoom lens includes a first lens unit having a positive refractive power and arranged closest to an object side. 0.50
US20110273776 ZOOM LENS SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING ZOOM LENS SYSTEM  
Including, in order from an object side: a first lens group G1 having positive power; a second lens group G2 having negative power; a third lens group G3 having positive power; a fourth lens group...
US20140334013 ZOOM LENS SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING ZOOM LENS SYSTEM  
In a zoom lens system, an optical apparatus, and a manufacturing method, there are provided, in order from an object side: a first lens group having positive power, a second lens group having...
US20130321681 ZOOM LENS AND IMAGE PICKUP APPARATUS EQUIPPED WITH THE SAME  
A zoom lens includes, in order from an object side to an image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, and a third lens unit...
US20130003191 ZOOM LENS AND IMAGING APPARATUS  
A zoom lens comprising, in order from the object side: a first lens group that has a positive refractive power; a second lens group that has a negative refractive power; and a third lens group...
US20140118603 ZOOM LENS AND IMAGE PICKUP APPARATUS  
The zoom lens includes, in order from an object side to an image side, first, second and third lens units respectively having positive, negative and positive refractive powers, and a rear lens...
US20120236420 ZOOM LENS AND IMAGING APPARATUS  
A zoom lens includes, in order from an object side to an image side: a first lens group that has a positive refractive power; a second lens group that has a negative refractive power; and a third...
US20100220400 ZOOM LENS, OPTICAL APPARATUS EQUIPPED THEREWITH AND METHOD FOR MANUFACTURING THE ZOOM LENS  
A zoom lens ZL installed in a single-lens reflex digital camera 1 and the like includes, in order from an object side, a first lens group G1 having positive refractive power, a second lens group...
US20120038816 Imaging unit and imaging apparatus  
An imaging unit includes: a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; and a...
US20150234161 VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL DEVICE, AND PRODUCTION METHOD FOR VARIABLE MAGNIFICATION OPTICAL SYSTEM  
Composing, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; and a third lens group having positive...
US20150092100 IMAGING LENS AND IMAGING APPARATUS  
An imaging lens includes a first lens group having positive refractive power, a second lens group having negative refractive power, and a third lens group having positive refractive power. The...
US20140184884 ZOOM LENS AND CAMERA DEVICE  
The zoom lens comprises the foremost or first lens group of positive refractive power located the closest to an object, the succeeding second lens group of negative refractive power, and the third...
US20120257100 Inner Focus Lens, Interchangeable Lens Apparatus and Camera System  
An inner focus lens, in order from an object side to an image side, comprising: a first lens unit having positive optical power; a second lens unit having negative optical power; and a third lens...
US20110085251 COMPACT ZOOM LENS  
A zoom lens including: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; and a...
US20110273780 Zoom lens and imaging apparatus  
A zoom lens includes first, second, and third lens groups having positive, negative, and positive refractive powers, respectively, which are arranged in order from the object side to the image...
US20100188554 IMAGE FORMING OPTICAL SYSTEM AND ELECTRONIC IMAGE PICKUP APPARATUS USING THE SAME  
An image forming optical system includes in order from an object side to an image surface, a first lens group having a positive refracting power, a second lens group having a negative refracting...
US20170176727 VARIABLE POWER OPTICAL SYSTEM, OPTICAL DEVICE, AND METHOD FOR PRODUCING VARIABLE POWER OPTICAL SYSTEM  
A variable magnification optical system comprises, in order from an object side, a first lens group (G1) having positive refractive power, a second lens group (G2) having negative refractive...
US20170082837 ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS  
A zoom lens includes, in order from an object side along an optical axis, a first lens group G1 having positive refractive power, a second lens group G2 having negative refractive power, and a...
US20170068076 ZOOM OPTICAL SYSTEM, IMAGING DEVICE AND METHOD FOR MANUFACTURING THE ZOOM OPTICAL SYSTEM  
The art is formed of, disposed in order from an object, a first lens group (G1) having positive refractive power, a second lens group (G2) having negative refractive power, and a third lens group...
US20170052353 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME  
Provided is a zoom lens, including, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; and...
US20160154230 Endoscope Objective Optical System  
This endoscope objective optical system is capable of acquiring images of high resolution and wide angle of observation field, maintaining low invasiveness and appropriately correcting various...
US20160147048 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME  
Provided is a zoom lens, comprising, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; and...
US20160139381 Zoom Lens and Image Pickup Apparatus Using the Same  
A zoom lens comprises in order from an object side, a first lens unit having a positive refractive power,a second lens unit having a negative refractive power, anda third lens unit having a...
US20160139380 Zoom Lens and Image Pickup Apparatus Using the Same  
A zoom lens comprises in order from an object side, a first lens unit having a positive refractive power,a second lens unit having a negative refractive power, anda third lens unit having a...
US20160139379 Zoom Lens and Image Pickup Apparatus Using the Same  
A zoom lens comprises in order from an object side, a first lens unit having a positive refractive power,a second lens unit having a negative refractive power, anda third lens unit having a...

Matches 1 - 50 out of 54 1 2 >