Search
Menu
Hamamatsu Corp. - Earth Innovations LB 2/24

Tiny Squiggle Optical Zoom Module

New Scale Technologies Inc.Request Info
 
Facebook X LinkedIn Email
For Mobile Phone Cameras
VICTOR, N.Y., Feb. 3, 2006 -- New Scale Technologies Inc. demonstrated a new optical zoom module for mobile phone cameras at Photonics West 2006. The miniature module uses the company's Squiggle motor to achieve lens travel greater than 4 mm with better than 10 micrometer closed-loop repeatability and validates the piezoelectric motor technology’s ability to deliver both optical zoom and auto focus movement in a tiny package for next-generation handsets, the company said.
   Using the newest and smallest Squiggle motor (a 2.4 mm x 2.4 mm x 6.5 mm linear motor), this reference design is an integrated motion subsystem incorporating the piezoelectric motor, a smooth linear guide, preload springs, limit stops and a position sensor. Computer control is demonstrated using an OEM motor controller that is smaller than a credit card. Single-chip controllers are under development by leading ASIC manufacturers and will be available by the second quarter of 2006, according to New Scale.

The demonstration module’s cross section of 10 mm x 12 mm is only slightly larger than the 8-mm-diameter lens. The module's 18-mm length reflects the typical optical and physical properties of the lens elements and image sensor. The final dimensions of a customer’s module will be determined by the customer's choice of optics and image sensor. Squiggle ultrasonic motor technology can scale to any camera design.

David Henderson, president of New Scale, said, "As phone cameras designers move to 3- and 5-megapixel (MP) CMOS image sensors, both auto focus and optical zoom will be required to deliver the image quality they want from those sensors. Our tiny Squiggle motor is uniquely suited to provide both the range and repeatability required for this in a tiny package."

Phone cameras with greater than 2-MP CMOS image sensors are currently in production, using auto focus mechanisms driven by short-stroke (less than 0.5 mm) piezoelectric actuators, voice coils or stepper motors. With higher resolution sensors, both auto focus and optical zoom are highly desirable but difficult to achieve without significantly increasing the phone size. A combined auto focus/optical zoom module requires at least two sets of moving optics with greater than 4 mm of stroke (zoom) and coordinated movement with better than 10 micrometer repeatability.

Compared to stepper motors and voice coils, SQUIGGLE motor-based modules scale to the smallest possible size, independent of the optics and image sensor. The simple and low-cost design eliminates gears, cams and barrels and provides better robustness to mechanical shock and temperature extremes. Squiggle motors have higher efficiency and longer battery life, holding the lens in position with zero power and high rigidity.

The Squiggle motor uses a threaded nut and screw to create precise linear movement in a very small space. Piezoelectric ceramics create ultrasonic vibrations in the nut, causing the screw to rotate and translate with high precision. Squiggle motors are used in nanotechnology research, microelectronics, optics, lasers, biotechnology, medical devices, aerospace and defense, fluid control, and office/consumer products including mobile phone cameras.

For more information, visit: newscaletech.com; e-mail: [email protected]


New Scale Technologies Inc.
10 East Main Street, Suite 301
Victor, NY 14564
Phone: (585) 924-4450
Fax: (585) 924-4468



Published: February 2006
REQUEST INFO ABOUT THIS PRODUCT
* First Name:
* Last Name:
* Email Address:
* Company:
* Country:
Message:


When you click "Send Request", we will record and send your personal contact information to New Scale Technologies Inc. by email so they may respond directly. You also agree that Photonics Media may contact you with information related to this inquiry, and that you have read and accept our Privacy Policy and Terms and Conditions of Use.

Register or login to auto-populate this form:
Login Register
* Required

Photonics Marketplace
Looking for Ceramics? There are 49 companies listed in the Photonics Buyers' Guide.
Browse Cameras & Imaging, Lasers, Optical Components, Test & Measurement, and more.
defensemobile phone camerasNew Scaleoptical zoom modulePhone CamerasPhotonics WestProductsSensors & DetectorsSquiggle

We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.