TREA

Viewfinders Focusing aids for cameras Means for focusing for cameras Autofocus systems for cameras

Follow

Industry

  • CPC
  • G03B13/00
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

GPHYSICS G03Photography G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES ACCESSORIES THEREFOR

Current Industry

G03B13/00Viewfinders Focusing aids for cameras Means for focusing for cameras Autofocus systems for cameras

Sub Industries

G03B13/02Viewfinders G03B13/04of direct vision type G03B13/06with lenses with or without reflectors G03B13/08with reflected image of frame G03B13/10adjusting viewfinders field G03B13/12to compensate for change of camera lens or size if picture G03B13/14to compensate for parallax due to short range G03B13/16combined with focusing aids G03B13/18Focusing aids G03B13/20Rangefinders coupled with focusing arrangements G03B13/22coupling providing for compensation upon change of camera lens G03B13/24Focusing screens G03B13/26with magnifiers for inspecting image formed on screen G03B13/28Image-splitting devices G03B13/30indicating depth of field G03B13/32Means for focusing G03B13/34Power focusing G03B13/36Autofocus systems
Industries

Patents Grantslast 30 patents

Patents Applicationslast 30 patents