Optical apparatus

Abstract

An optical apparatus including a substrate, a light-emitting module, a transparent optical element and a connecting unit is provided. The light-emitting module is disposed over the substrate and is electrically connected with the substrate. The transparent optical element is disposed over the light-emitting module. The transparent optical element includes a transparent substrate and an optical element. The optical element is disposed on the transparent substrate. The optical element and the transparent substrate are integrally formed and made of a same material. The connecting unit is disposed beside the light-emitting module and is used for connecting the transparent optical element to the substrate.

What is claimed is: 
     
         1 . An optical apparatus, comprising:
 a substrate;   a light-emitting module disposed over the substrate and electrically connected with the substrate;   a transparent optical element disposed over the light-emitting module, wherein the transparent optical element comprises:
 a transparent substrate; and 
 an optical element disposed on the transparent substrate, wherein the optical element and the transparent substrate are integrally formed and made of a same material, and a material of the transparent optical element comprises a crystal material; and 
   a connecting unit disposed beside the light-emitting module and used for connecting the transparent optical element to the substrate.   
     
     
         2 . The optical apparatus according to  claim 1 , wherein the crystal material comprises sapphire or spinel. 
     
     
         3 . The optical apparatus according to  claim 1 , wherein the optical element is disposed on at least one of a first surface of the transparent substrate and a second surface of the transparent substrate opposite to the first surface. 
     
     
         4 . The optical apparatus according to  claim 1 , wherein the transparent optical element comprises a diffractive optical element or a lens array. 
     
     
         5 . The optical apparatus according to  claim 1 , wherein the connecting unit surrounds the light-emitting module and maintains a distance between the light-emitting module and the transparent optical element. 
     
     
         6 . The optical apparatus according to  claim 1 , wherein an orthographic projection area of the transparent optical element on the substrate is less than an area of the substrate. 
     
     
         7 . The optical apparatus according to  claim 1 , wherein the light-emitting module comprises a laser diode or a light-emitting diode. 
     
     
         8 . The optical apparatus according to  claim 1 , wherein the connecting unit is an annular glue frame.