Michael Pinch's Page

David Willis replied to Michael Pinch's discussion Motors for use in miniature autofocus cameras in the group MicroAutomation

"There is a new (at least to me) motor out there called Squiggle. It is really small, and looks like it has already seen application in some camera focusing applications. It can be operated closed loop or open loop from what I can tell. Check out…"

Mar 5, 2010

Michael Pinch added a discussion to the group SolidWorks Exchange

Modeling Half-Sine Shock Load in Cosmosworks

Feb 28, 2010

0 Comments 0 Likes

Michael Pinch joined Marshall Matheson's group

SolidWorks Exchange

Group for SolidWorks users and enthusiasts.

Feb 28, 2010

143 Comments 13 Likes

Jerome Silverman replied to Michael Pinch's discussion Motor encoder for use in miniature autofocus cameras in the group Sensors

"Going back through my notes on lenses for video cameras, I see that the linear feedback potentiometer was mechanically related to the zoom lense position. The focus lense was mechanically linked to the zoom lense through spiral grooves in the…"

Jan 11, 2010

Michael Pinch replied to Michael Pinch's discussion Motor encoder for use in miniature autofocus cameras in the group Sensors

"Jerome - Thanks for the overview. It helped. Mike "

Jan 9, 2010

Jerome Silverman replied to Michael Pinch's discussion Motor encoder for use in miniature autofocus cameras in the group Sensors

"The older ones used a linear potentiometer. The newer ones eliminated the encoder and used a stepping motor. Coarse focus was achieved by automatically calibrating the focus lense position to the zoom setting, zoom also done with a stepping motor.…"

Jan 9, 2010

Michael Pinch added a discussion to the group Sensors

Motor encoder for use in miniature autofocus cameras

I am looking for different types of encoders for closed-loop control of motors for use in miniature autofocus cameras. The encoder can be either rotary or linear. An ideal would be some sort of resolver or absolute encoder.Thanks.See More

Jan 1, 2010

3 Comments 0 Likes

Michael Pinch joined Marshall Matheson's group