Optical assembly and method for assembling same, and optical module implemented with optical assembly
A light, green light technology, applied in optical components, semiconductor devices of light-emitting components, optics, etc., can solve problems such as large overall size
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no. 1 example )
[0038] figure 1 is a perspective view of an optical assembly 10A according to a first embodiment of the present invention. Optical assembly 10A converts red light L R , green light L G and Blu-ray L B Composite together. The optical assembly 10A includes a red laser diode 41, a green laser diode 42, a blue laser diode 43, a first mounting base 61, a second mounting base 62, a third mounting base 63, and a base having a top surface 50r. Seat 50.
[0039] Red laser diode 41 (as the first laser diode in this embodiment) emits red light L R , Hongguang L RThe wavelength is in the red range, for example, the red light L R The wavelength is 640nm. The red laser diode 41 is mounted on the top surface 50 r of the base 50 via a primary mounting base 61 . The red laser diode 41 emits red light L in a direction along the top surface 50r R .
[0040] Green laser diode 42 (as the second laser diode in this embodiment) emits green light L G , green light L G The wavelength is i...
no. 2 example )
[0064] Next, a description will be given of a second embodiment of the present invention, which is an optical module equipped with the above-described optical assembly 10A. Figure 7 shows the appearance of the optical module 1A, while Figure 8 The inside of the optical module 1A is shown by omitting the cover 3 . The optical module 1A has a CAN package called a coaxial package.
[0065] In addition to the optical assembly 10A, the optical module 1A includes a stem 2, a cover 3, a condenser lens 4, and lead terminals 5a to 5g. The cover member 3 holds the condensing lens 4 which focuses the red-containing light L output from the optical assembly 10A. R , green light L G and Blu-ray L B composite light. The optical axis of condenser lens 4 and red light L R , green light L G Blu-ray L B alignment of the optical axis. The stem 2 has a diameter of 5.6 mm, and the stem 2 has lead terminals 5 a to 5 g protruding from the main surface 2 a of the stem 2 . Three lead termin...
no. 3 example )
[0069] Figure 9 is a perspective view of an optical assembly 10B according to another embodiment of the present invention. Figure 10 removed the ability to pass through Figure 9 The light L output by the optical assembly 10B shown R , L G and L B The cover 103, Figure 11A and Figure 11B are a plan view and a side view of the optical assembly 10B.
[0070] In addition to the elements provided in the optical assembly 10A, the optical assembly 10B is also provided with a substrate 150 instead of the base 50 and a substrate 150 capable of transmitting light L R , L G and L B The cover 103 made of material. The base plate 150 (which is provided with a top surface 150r corresponding to the top surface 50r of the base 50 of the above-described embodiment) is mounted with an optical assembly 10A comprising Three laser diodes 41 to 43, three lenses 71 to 73 and two wavelength selective filters 81, 82. The optical assembly 10B is characterized in that the top surface 150...
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