Optical signal acquiring device
A technology for acquiring device and optical signal, which is applied in the direction of integrating optical head device, optical recording head, head configuration/installation, etc., can solve the problems of high processing precision, high cost, complex processing technology, etc., so as to reduce processing cost , the effect of reducing the scrap rate and simplifying the process
Inactive Publication Date: 2008-11-26
珠海市东立电子有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, the movable part is fixed on the base by screws. Since the length of the screw is fixed and must be locked, the thickness, width and other dimensions of the movable part must be accurate, and the processing accuracy of each part is required to be high. complex and costly
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The optical signal acquisition device of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0023] see figure 2 and image 3 , an optical signal acquisition device, which includes a base 1, a movable part 2 and an optical path system; wherein, see figure 1 , the optical path system includes:
[0024] A light-emitting element 8, which can be a laser diode, can emit laser light of two different wavelengths (such as 780nm and 650nm), so that the optical signal acquisition device can read both CDs and DVDs;
[0025] An optical path conversion device, which converts the laser light emitted by the above-mentioned light-emitting element 1 into parallel light and shoots it to the following light-concentrating element 3, and then guides the laser light reflected from the signal disc to the photosensitive element; the optical path conversion device includes grating 7, all Mirror 4, collimating mirror 5 and beam splitter 6;...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a disk optical component, in particular to an optical signal acquisition device, comprising a base, a movable portion and an optical path system, wherein the optical route system comprises a light-emitting element, an optical path converter, a condensing element and a photosensitive element. The light-emitting element, the optical path converter and the photosensitive element are located on the base. The movable portion comprises a condensing support base, a condensing support, two U-shaped magnet bases, at least two welding rods and four suspension wires, which are connected between the condensing support and the condensing support base. Two suspension wires are connected with a focusing coil at one end of the condensing support, and the other two are connected to a tracking coil. The base is further provided with welding studs with the same number as that of the welding rods, and the welding studs and the welding rods vertically corresponds to each other in position to be welded together. The optical signal acquisition device simplifies the technical process, and reduces the reject rate and the processing cost.
Description
technical field [0001] The invention relates to a disk optical assembly, in particular to an optical signal acquisition device. Background technique [0002] At present, optical signal acquisition devices for optically reading and writing signals to magnetic disks usually have such a structure, that is, a semiconductor laser as a light-emitting element and a photodetector as a light-receiving element are installed in the housing that can drive the objective lens. the movable part. The movable part is fixed to the base. The objective lens is installed on the lens holder, and the objective lens holder and the coil holder are combined to form a movable part. The following optical path is formed in the above-mentioned housing, that is, the optical path for guiding the laser beam emitted from the semiconductor laser to the objective lens, and the optical path for guiding the laser beam emitted from the semiconductor laser back to the objective lens. The laser beam is directed a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G11B7/12G11B7/08G11B7/123
Inventor 蔡怡
Owner 珠海市东立电子有限公司