Patent ID: 7529002
Filing Date: 2009-05-05
Classification: H04N

Abstract:
1. An optical device comprising: a reflection unit configured to reflect an incident light from a light source, wherein the reflection unit comprises an imaging mirror, an optical path turning mirror, and a parallel mirror set including a first reflection mirror and a second reflection mirror, wherein the parallel mirror set is positioned to directly reflect the incident light received from the light source between the first reflection mirror and the second reflection mirror, wherein the first reflection mirror is configured to reflect the incident light received from the second reflection mirror to the optical path turning mirror, wherein the optical path turning mirror is positioned to reflect the incident light back to the parallel mirror set, wherein the incident light from the optical turning mirror is received by the parallel mirror set with the first reflection mirror and is reflected between the first reflection mirror and the second reflection mirror; and a lens configured to form images by focusing the incident light reflected by the reflection unit, wherein the imaging mirror is positioned to reflect the incident light to the lens.