Turning processing method of small aspherical optical element
An optical element and processing method technology, applied in the field of turning processing, can solve the problems of high cost, difficulty in guaranteeing size and surface shape accuracy, low efficiency, etc., and achieve the effect of reducing the number of processing compensations and improving processing accuracy.
Inactive Publication Date: 2011-08-10
XIAMEN UNIV
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Problems solved by technology
This invention fundamentally overcomes the defects of low efficiency, high cost, and difficult guarantee of size and surface accuracy in processing germanium single crystal aspheric optical elements with traditional polishing technology.
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[0025] The present invention will be further described below in conjunction with accompanying drawing.
[0026] The codes of the main parts in the accompanying drawings are given below:
[0027] 1. Processing platform, 2. Work piece, 3. Voice coil motor frame, 4. Spindle box, 5. Main shaft, 6. Fixture, 7. Fixture nut, 8. Voice coil motor stator, 9. Voice coil motor mover, 10. Knife, 11. Knife holder fixing nut.
[0028] see figure 1 with 2 , the workpiece 2 is fixed on the processing platform 1 through the clamp 6 , and the clamp 6 is fixed on the processing platform 1 through the clamp fixing nut 7 . During processing, the spindle 5 drives the processing platform 1 to rotate together, and the workpiece 2 also rotates accordingly. Two cutters 10 are installed on the voice coil motor mover 9 . The stator 8 of the voice coil motor drives the tool 10 to reciprocate. The voice coil motor frame 3 can adjust its position in the Z-axis direction, and can rotate relative to the ...
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The invention relates to a turning processing method of a small aspherical optical element, which relates to a small aspherical optical element and provides the turning processing method of the small aspherical optical element, wherein required equipment has simple structure and higher processing precision and efficiency. A processing device adopts the mode that two cutters simultaneously work, the processing device is provided with an X axis, a Y axis, a Z axis and a U axis, and the reciprocating motion of the cutters in the direction of the U axis is realized through a voice coil linear motor; the two cutters are accurately positioned on a processing lathe through a rotary encoder; the cutters are accurately aligned by utilizing a standard part; processing parameters are set; programming is carried out according to a designed processing track to generate a numerical control processing code; the numerical control processing code is moved to realize the simultaneous processing of the two cutters; real-time on-site measurement is carried out on the optical element by utilizing a contact type or non-contact type measurement sensor; analysis processing is carried out on measured data, and if the shape conforms to a processing requirement, the processing is finished; and if the shape does not conform to the processing requirement, a compensation program operates for compensation processing.
Description
technical field [0001] The invention relates to a small-sized aspheric optical element, in particular to a turning processing method using two cutting tools to work simultaneously and the processing track is a contour line. Background technique [0002] With the development of opto-mechanical integration, many optical components are used in home appliances such as video cameras, compact CD players, and various office automation equipment represented by laser printers and copiers, and the aspherization of these optical components is rapidly developing. They are changed from traditional spherical lenses to aspheric mirrors, which means that the number of lenses can be reduced from an optical design point of view. The continuous innovation in modern lens design has created a new type of "aspheric" design. The curved surface of the aspheric lens is no longer a uniform curvature, that is, it is no longer a spherical surface. The lenses can be made thinner, reducing peripheral a...
Claims
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IPC IPC(8): B23B5/00
Inventor 郭隐彪王哲张世汉
Owner XIAMEN UNIV