US 9,810,968 B2
Wavelength conversion device and projector
Kun-Liang Jao, Hsin-Chu (TW); Ko-Shun Chen, Hsin-Chu (TW); Chi-Hsun Wang, Hsin-Chu (TW); and Chi-Tang Hsieh, Hsin-Chu (TW)
Assigned to Coretronic Corporation, Hsin-Chu (TW)
Filed by Coretronic Corporation, Hsin-Chu (TW)
Filed on Jun. 29, 2015, as Appl. No. 14/753,024.
Claims priority of application No. 2014 1 0308636 (CN), filed on Jul. 1, 2014.
Prior Publication US 2016/0004138 A1, Jan. 7, 2016
Int. Cl. G03B 21/20 (2006.01); G02F 1/35 (2006.01); G03B 33/08 (2006.01)
CPC G02F 1/3532 (2013.01) [G03B 21/204 (2013.01); G03B 33/08 (2013.01)] 20 Claims
OG exemplary drawing
1. A wavelength conversion device, comprising:
a main body, having at least one wavelength conversion region, a containing recess portion, and a stop portion, wherein the containing recess portion and the stop portion encircle a closed slot; and
a transparent element, disposed in the closed slot to construct a light penetration region, wherein the transparent element is free from an opening in an axial direction, and the stop portion stops the transparent element along a radial direction of the main body, wherein the axial direction is perpendicular to the radial direction.