Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Lens barrels

A lens barrel and lens technology, applied in installation, shutter, optics, etc., can solve the problems that hinder the thinning and miniaturization of the lens barrel, and achieve the effect of preventing interference

Inactive Publication Date: 2007-09-19
ASIA OPTICAL CO INC
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, there is a problem of hindering the thinning and miniaturization of the lens barrel by restricting the straight-forward guidance of the shutter unit inside the lens barrel

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lens barrels
  • Lens barrels
  • Lens barrels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] 1 to 29 illustrate the overall configuration of the lens barrel of this embodiment. In this embodiment, the present invention is applied to a zoom lens barrel for a digital camera.

[0043] FIG. 1 is a cross-sectional view showing the lens barrel 2 in a shooting position on the wide-angle side. The photographing optical system is composed of a first lens group 31, a second lens group 32, a third lens group 33, a low pass filter (low pass filter) 34, and a CCD (photographic device) 35 in order from the subject side. . The optical axis of the photographic optical system is J1. The photographic optical axis J1 is parallel to the central axis J2 of the lens barrel, and is eccentric to the central axis J2. Zooming is performed by moving the first lens group 31 and the second lens group 32 in the direction of the imaging optical axis J1, and focusing is performed by moving the third lens group 33 in the direction of the imaging optical axis J1. Light beams passing through...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

PROBLEM TO BE SOLVED: To provide a lens barrel free from the restriction of the movement of a shutter unit.

Description

technical field [0001] The present invention relates to a lens barrel that movably holds a shutter unit. Background technique [0002] The shutter unit with the shutter blades arranged in the lens barrel and the shutter blade drive control circuit arranged in the main body are connected through a flexible printed substrate for signal transmission. When the shutter unit moves in the direction of the imaging optical axis, the flexible printed board for the shutter has a length corresponding to the movement in the direction of the optical axis, and is provided so that no slack occurs. [0003] In addition, when the flexible printed substrate for the shutter moves along the peripheral direction around the central axis of the lens barrel, there are problems such as disconnection and interference with other lens barrel constituent members. 2003-140022 A) is supported by a member that does not rotate, for example, it is supported by a member that moves straight along the direction...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/04G02B7/10G03B9/08G03B9/10G03B17/04
CPCG03B17/04G03B9/10
Inventor 阪本宇正
Owner ASIA OPTICAL CO INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com