Industry Patents
Patent: 7210795
Light Quantity Adjusting Apparatus and Projector Apparatus Using the Same
(Click image for PDF of full patent)
| Patent Number: |
7210795 |
| Title: |
Light Quantity Adjusting Apparatus and Projector Apparatus Using the Same |
| Abstract: |
A light quantity adjusting device for adjusting light quantity of a
projector apparatus. The adjusting device includes a substrate having an
optical path opening and a blade guide surface having level differences
in a direction perpendicular to the optical path; a plurality of blade
members arranged at a circumferential edge of the optical path opening
for rotating along the blade guide surface in an inclined state with
respect to the optical path; and a plurality of pins disposed on the
substrate for supporting base end portions of the blade members to rotate
around the base end portions for opening and closing the optical path
opening. A transmission member is mounted on the substrate for engaging
the blade members, and a drive device drives the transmission member to
rotate the blade members to open and close the optical path opening.
|
| Country of Issue: |
US |
| First Named Inventor: |
Hara, Shirasu, Hayakawa |
| Assignee: |
Nisea Corporation |
| Continuation or Divisional of: |
|
| International Classification: |
G03B 21/14 |
| US Classification: |
353/88 |
| Issue Date: |
05-01-2007 |
| Filing Date: |
02-18-2005 |
| Application : |
11/060527 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7210795 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7210795 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
Disclaimer: This web site is not intended to offer comprehensive or sufficient
information to enable a full legal analysis of a patent or potential
infringement. The information provided on this web site is intended
as general information only, and is not intended to serve as legal
opinion, legal advice or as a substitute for legal counsel. If you
have a question about a specific factual situation, you should
contact an attorney directly
|
