[0030] Example one:
[0031] figure 1 Shown is an exploded view of the flexible fixing device of the optical element of this embodiment, figure 2 Shown is a cross-sectional view of the flexible fixing device of the optical element of this embodiment, image 3 Shown as figure 2 A-A view;
[0032] The flexible fixing device of the optical element of this embodiment is used to mechanically install and fix the strip-shaped optical element. A three-dimensional coordinate system is established with the axis direction of the strip-shaped optical element (that is, along the length direction of the optical element) as the Z-axis direction, such as figure 2 As shown, the right thumb points to the positive direction of the Z axis, the other four fingers make a fist, and the direction of the other four fingers to make a fist is defined as the Rz direction, and the Rx and Ry directions are defined similarly;
[0033] See figure 1 , The flexible fixing device of the optical element of this embodiment includes a pressing plate 101, a spring 102, a pressing cover 104, a 3/4 cylinder 201, a 1/4 cylinder 202, an elastic plunger 205, a support seat 301 and a tray 302;
[0034] Such as image 3 As shown, the optical element 204 is placed in the entire cylinder formed by the 3/4 cylinder 201 and the 1/4 cylinder 202, and the optical element 204 is connected to the 3/4 cylinder 201 and the 1/ 4 The cylinder 202 is in surface contact, and the end surface is used for positioning to improve the accuracy and stability of positioning;
[0035] Such as figure 2 As shown, the 3/4 cylinder 201 and the 1/4 cylinder 202 are arranged in the support base 301, and the two ends of the 3/4 cylinder 201 and the 1/4 cylinder 202 are positioned at In the support base 301, one end of the elastic plunger 205 passes through the support base 301 and the 1/4 cylinder 202, contacts the outer side wall of the optical element 204, and flexibly fixes the support base 301 , 1/4 cylinder 202, 3/4 cylinder 201 and the relative position of the optical element 204, using elastic plungers to fix the relative position between the support base, 1/4 cylinder, 3/4 cylinder and the optical element , You can easily control the size of the force;
[0036] The 3/4 cylinder 201, the 1/4 cylinder 202, the supporting seat 301 and the elastic plunger 205 realize the positioning and fixing of the optical element 204 in the X-axis, Y-axis, Rx and Ry directions;
[0037] Such as figure 2 As shown, the tray 302 is connected to one end of the support base 301, one end of the optical element 204 is positioned on the tray 302, the pressing cover 104 is provided at the other end of the optical element 204, and the The spring 102 is sleeved on the pressure cover 104, and the pressure plate 101 compresses the spring 102 and is connected to the other end of the support seat 301;
[0038] The two ends of the optical element 204 are respectively positioned on the tray 302 and the pressing cover 104, and are in surface contact with the tray 302 and the pressing cover 104. The use of end faces for positioning is beneficial to improve positioning accuracy The pressure plate 101 flexibly fixes the position of the optical element 204 in the Z-axis direction through the spring 102, that is, the pressure plate 101, the spring 102, the pressure cover 104 and the tray 302 realize the optical element Positioning and fixing of 204 in the Z axis and Rz direction.
[0039] The flexible fixing device of the optical element of this embodiment adopts the end face to position the optical element, and adopts the elastic plunger and the spring to flexibly fix the optical element, which can realize the mechanical installation and fixation of the strip-shaped optical element.
[0040] Such as image 3 As shown, the cross section of the optical element 204 in this embodiment is rectangular, and the 3/4 cylinder 201 is provided with two mutually perpendicular inner side walls 2011 and 2012, and the two inner side walls 2011 and 2012 are both The 1/4 cylinder 202 is also provided with two mutually perpendicular inner side walls 2021 and 2022, the two inner side walls 2021 and 2022 are both flat, and the two inner side walls of the 3/4 cylinder 201 2011 and 2012 and the two inner side walls 2021 and 2022 of the 1/4 cylinder 202 sandwich the optical element 204 to determine the position of the optical element 204 in the X-axis, Y-axis, Rx and Ry directions;
[0041] If the cross section of the optical element 204 is of another shape, the inner side wall of the 3/4 cylinder 201 and the inner side wall of the 1/4 cylinder 202 can be designed to be the same as the cross section of the optical element 204 For those skilled in the art, the matching shape is easy to think and do.
[0042] Such as figure 1 , figure 2 with image 3 As shown, there are four elastic plungers 205 in this embodiment, of which two elastic plungers 205 flexibly fix the optical element 204 from a direction perpendicular to the inner side wall 2021, and the other two The elastic plunger 205 flexibly fixes the optical element 204 from a direction perpendicular to the inner side wall 2022; the support seat 301 is provided with an adjustment hole 3011, and one end of the elastic plunger 205 passes through the adjustment hole 3011 The 1/4 cylinder 202 is connected to the outer side wall of the optical element 204, and the other end of the elastic plunger 205 is left in the adjustment hole 3011. The adjustment hole 3011 can be used to adjust the elasticity. After adjusting the pre-tightening force of the plunger 205, the process cover 206 is inserted into the adjustment hole 3011, and the process cover 206 is used to seal the elastic plunger 205, and the process cover 206 The influence of external factors on the elastic plunger 205 can be avoided, that is, the influence of external factors on the force applied to the elastic plunger 205 can be avoided;
[0043] The elastic plunger 205 is used to fix the position of the optical element 204 in the X-axis, Y-axis, Rx and Ry directions, and the force applied by the elastic plunger 205 can be controlled.
[0044] Such as figure 1 with figure 2 As shown, the flexible fixing device of the optical element of this embodiment further includes a pressing ring 203, the pressing ring 203 is placed in the supporting seat 301, one end of the pressing ring 203 is connected to the 3/4 cylinder 201 and the The 1/4 cylinder 202 is connected. The other end of the pressure ring 203 is connected to the pressure plate 101. The pressure ring 203 is made of elastic material (such as rubber). The pressure plate 101 is passed through the spring 102 and the pressure plate 101. While the pressing cover 104 presses one end of the optical element 204, the pressing ring 203 presses one end of the 3/4 cylinder 201 and one end of the 1/4 cylinder 202; the support base 301 is connected to the An annular boss 3021 is provided on the inner side wall of one end of the tray 302, the other ends of the 3/4 cylinder 201 and the 1/4 cylinder 202 are supported on the boss 3021, the 3/4 cylinder The body 201 and the 1/4 cylinder 202 are positioned in the support seat 301 through the pressing ring 203 and the boss 3021; because the 3/4 cylinder 201 and the 1/4 cylinder 202 Both the pressing ring 203 and the boss 3021 are in surface contact. Therefore, the flexible fixing device of the optical element of this embodiment adopts an end surface positioning method to position the 3/4 cylinder 201 and the 1/4 cylinder For the body 202, the use of end faces for positioning is beneficial to improve the accuracy and stability of positioning.
[0045] See Figure 4 The gland 104 is in the shape of a hat. The gland 104 includes a crown 1041 and a brim 1042 arranged on the outer side wall of one end of the crown 1041; the crown 1041 is provided with a hole 1043, and the hole 1043 The end of the crown 1041 provided with the brim 1042 penetrates, and one end of the optical element 204 is placed in the hole 1043, and the hole 1043 is a rectangular parallelepiped hole; the spring 102 is sleeved in the On the crown 1041, and one end of the spring 102 is supported on the brim 1042, and the other end of the spring 102 is connected to the pressure plate 101; the end of the crown 1041 without the brim is provided with an aperture 1044, such as a circular diaphragm, the centerline of the diaphragm O 1 O 2 On the same straight line as the axis of the optical element 204, the area of the aperture 1044 is smaller than the cross-sectional area of the optical element 204.
[0046] See figure 1 with Figure 5 The tray 302 includes a body 3021 and an annular step body 3022 provided at one end of the body 3021, and the body 3021 has an end of the annular step body 3022 connected to the support base 301; the annular step body 3022 It includes an annular body 3023 and a 1/2 annular body 3024, the annular body 3023 is arranged on the body 3021, and the 1/2 annular body 3024 is arranged on the annular body 3023; the body A hole 3025 is provided in 3021, and the hole 3025 penetrates with the end of the body 3021 where the annular step body 3022 is provided. The annular step body 3022 surrounds the periphery of the hole 3025. One end of the optical element 204 Is placed in the hole 3025; the body 3021 is provided with a light-passing hole 3027 at one end of the body 3021 without the annular step body, the light-passing hole 3027 is used to pass light, and the area of the light-passing hole 3027 is larger than that of the optical element The area of the cross-section of the optical element 204 is provided with a diaphragm 3026 between the hole 3025 and the light-passing hole 3027. The center line P1P2 of the diaphragm is on the same line as the axis of the optical element 204. The area of the aperture 3026 is smaller than the area of the cross section of the optical element 204.
[0047] See figure 2 with Image 6 , One end of the 3/4 cylinder 201 close to the tray 302 is provided with a 1/4 annular protrusion 2011, and the 1/4 annular protrusion 2011 is placed on the annular body 3023 of the tray 302 Above, the 1/4 annular protrusion 2011 can slide on the annular body 3023 along the annular body 3023, and the sliding range is within the half circumference of the annular body 3023, because the annular The 1/2 circular ring body 3024 is provided on the other half of the circumference of the body 3023. The flexible fixing device of the optical element of this embodiment passes through the 1/4 circular protrusion 2011 of the 3/4 cylinder 201 and the The annular stepped body 3022 of the tray 302 is used to locate the position of the optical element 204 in the Rz direction to ensure the rotation accuracy requirement between the optical element 204 and the aperture 3026.
[0048] See figure 1 with figure 2 A grinding pad 103 is provided between the pressing plate 101 and the support base 301, and the grinding pad 103 is used to adjust the compression distance of the spring 102 to control the pressing plate 101 to the optical element 204 compression force.
[0049] One end of the optical element 204 is placed in the hole 1043 of the gland 104, and the other end of the optical element 204 is placed in the hole 3025 of the tray 302 to determine that the optical element 204 is in the Z-axis direction The optical element 204 is in surface contact with the gland 104 and the tray 302, which is beneficial to improve the accuracy and stability of positioning; the 3/4 cylinder 201 and the tray 302 pass through a step The position of the optical element 204 in the Rz direction is determined by surface contact; the pressure plate 101 exerts a force on the pressure cover 104 through the spring 102 to fix the optical element 204 on the Z axis, Rz The position in the direction and the magnitude of the force can be controlled by the grinding pad 103.
[0050] The flexible fixing device of the optical element of this embodiment can realize the horizontal placement of the strip-shaped optical element and the vertical placement of the strip-shaped optical element;
[0051] The flexible fixing device of the optical element of this embodiment has a simple structure and is convenient to disassemble.
