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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

Active Publication Date: 2014-09-03
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the three laser diodes are individually packaged and the optical system that guides the light to these devices is fabricated outside the laser diode package, the overall size of the system that provides the three primary colors becomes relatively large

Method used

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  • Optical assembly and method for assembling same, and optical module implemented with optical assembly
  • Optical assembly and method for assembling same, and optical module implemented with optical assembly
  • Optical assembly and method for assembling same, and optical module implemented with optical assembly

Examples

Experimental program
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Effect test

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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Abstract

An optical assembly that installs red, green, blue laser diodes (LDs) within a single package is disclosed. The LDs are mounted on a base via respective sub-mounts. Light emitted from the LDs is collimated by collimating lenses and multiplexed by two wavelength filters so as to align optical axes of the light. The multiplexed light has an axis substantially leveled with the axes of the red, green, and blue light measured from the top of the base.

Description

technical field [0001] The invention relates to an optical assembly with three light sources respectively corresponding to three primary colors and a method for assembling the optical assembly. Background technique [0002] Flat panel displays have become very popular in the consumer market, and there has been a trend of applying flat panel displays to mobile communications. A type of flat-panel display that incorporates laser diodes is superior in terms of power consumption, clarity, and saturation compared to displays that use white LEDs (light-emitting diodes) as the light source for the display's backlight. Accordingly, flat panel displays equipped with laser diodes will find applications in, for example, small projectors, head-mounted displays, head-up displays, and the like. This light source is equipped with three kinds of laser diodes (ie, red laser diode, green laser diode, and blue laser diode) corresponding to the three primary colors. High-quality images with h...

Claims

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Application Information

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IPC IPC(8): G02B27/10F21V19/00F21V17/08F21V13/02F21Y101/02
CPCF21K9/90H01S5/4025F21K9/54G02B7/00G02B27/1006H01S5/02212H01S5/4012H01S5/4093G03B21/2033H01S5/02255H01S5/02253H01S5/02325G02B27/102H01S5/0071H01S5/0078G02B27/141G02B27/145G02B27/30
Inventor 中西裕美冈田毅
Owner SUMITOMO ELECTRIC IND LTD
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