The light engine light-path adjusting mechanism
Technical field
The utility model belongs to the projection display technique field, is a kind of light-path adjusting mechanism that is applicable to three-chip type LCD, three-sheet type LCOS, three-chip type DLP light engine.
Background technology
Along with the development of optical projection display technique, the digital projector of the big picture of high resolving power has become provides an indispensable ring on the vision imaging, and ray machine is commonly referred to light engine as the core component of projection arrangement.In light engine was made, the light path adjustment was a vital ring.The light path adjustment is also referred to as light shape and adjusts, if light shape is not adjusted to the right place, phenomenons such as colour edging and empty limit will appear in picture, directly influence the visual effect of projected picture; Also influence simultaneously the important performance indexes such as brightness, contrast, aberration of light engine.The light engine light-path adjusting mechanism is that the optical element of controlling three light paths is carried out the position adjustment, and each light path has corresponding adjusting mechanism.Shown in Figure 1 is light engine beam split light adjusting system schematic diagram, after passing lens 2 from the light of light source 1, through dichronic mirror 1, ruddiness transmits from it, and blue or green light is reflected to catoptron 4, reflexes on the dichronic mirror two 5 through catoptron 4, wherein, blue light is transmitted, and green glow is reflected out, thereby realizes the beam split function.Can realize that by the position of adjusting lens 1 ruddiness light shape is adjusted, can realize that by adjusting catoptron 4 positions blue light light shape is adjusted, can realize that by adjusting dichronic mirror 25 positions green glow light shape is adjusted.Shown in Figure 2 is light shape synoptic diagram, the expression light engine projects to back light demonstration profile on the display screen, wherein, AD limit and BC limit are defined as long limit, AB limit and CD limit are defined as minor face, it is exactly by the position of adjusting above-mentioned beam splitter red, green, blue three coloured light spots to be full of to show profile ABCD that light shape is adjusted, and forms white.
In the known technology, in the light engine light-path adjusting mechanism, on the adjusting mechanism of each light path, be used to install the load bearing element of optical element except that having, also have plural at least adjustment part and realize the adjusting of the position of optical element, thereby realization is by the adjustment of the light shape of this optical element purpose light.Though this structure can reach the purpose that light shape is adjusted, complex structure, efficient are low, and it is indeterminate to adjust sense of direction, can not put in order assembling and dismantling and change, and the special adjustment instrument of most needs is operated, and manufacturability is poor, can't satisfy production demand.
Summary of the invention
The purpose of this utility model is a kind of light engine light-path adjusting mechanism that integrates carrying and adjust function of design, has simple in structure, good manufacturability, adjustment efficient height, advantage of low manufacturing cost.
To achieve these goals, technical solution adopted in the utility model is:
A kind of light engine light-path adjusting mechanism, be used for the beam split light adjusting system that constitutes by lamp source, lens, dichronic mirror one, catoptron, dichronic mirror two, form by being installed in adjusting mechanism I, the adjusting mechanism II, the adjusting mechanism III that are used for adjusting respectively three light paths on the light engine connection main body, it is characterized in that:
Described adjusting mechanism I is made of load bearing seat one, load bearing seat two, lens are fixed on the load bearing seat one, load bearing seat two be connected main body and connect with screw by the elongated slot that connects left and right directions on the main body, load bearing seat one both sides have vertical plate, load bearing seat two both sides have vertical slot, vertical plate inserts in the vertical slot and can move up and down by vertical relatively slot, described load bearing seat two upper ends are connected with the set screw that vertical direction is provided with, set screw bottom conflict load bearing seat one upper end is provided with spring between load bearing seat one bottom surface and load bearing seat two lower ends; Connect a side that is positioned at load bearing seat two on the main body and be provided with side plate, be connected with the set screw that horizontal direction is provided with on this side plate, the side of this set screw bottom conflict load bearing seat two, connect the opposite side that is positioned at load bearing seat two on the main body and be provided with another side plate, be provided with spring between load bearing seat two and this side plate;
Described adjusting mechanism II is made of the catoptron load bearing seat, have surface level, positive facade, side elevation that catoptron positions respectively base, the back side, the side of catoptron when installing on the catoptron load bearing seat, catoptron load bearing seat top and bottom have two shell fragments respectively, shell fragment is conflicted in the catoptron front, the catoptron load bearing seat upper end and the back side that is positioned at catoptron are connected with set screw, set screw bottom conflict mirror back surface; Described catoptron load bearing seat bottom has two kidney slots, have on the center line of two kidney slots of catoptron load bearing seat bottom one be connected main body on the hole can relatively rotate the register pin of cooperation, the catoptron load bearing seat connects with screw with being connected between the main body by two kidney slots;
Described adjusting mechanism III is made of dichronic mirror two load bearing seats, has the surface level that dichronic mirror two positions respectively the base and a side of dichronic mirror two when installing on dichronic mirror two load bearing seats, side elevation and up and down each semicircle boss spacing to dichronic mirror two back sides, dichronic mirror two inserts between two plane of orientations and the semicircle boss, dichronic mirror two load bearing seats have each shell fragment up and down respectively, shell fragment is conflicted in dichronic mirror two fronts, dichronic mirror two load bearing seat sides are connected with set screw, set screw bottom conflict dichronic mirror two back side side edge, dichronic mirror two load bearing seats bottom be connected main body and be screwed connection.
The utility model light engine light-path adjusting mechanism, adjusting mechanism I is when realizing the lens installation function, screw-in, the back-out of the set screw that is provided with by vertical direction and horizontal direction respectively, realize the adjustment of lens above-below directions, left and right directions, thereby realized the adjustment to minor face light shape He the long marginal ray shape of one road light respectively.Adjusting mechanism II is when realizing the catoptron installation function, screw-in, back-out by set screw, realized that catoptron is around the intersecting lens rotation to the surface level of catoptron location, positive facade, realized adjustment to the second road light minor face light shape, by adjusting the catoptron load bearing seat, realized adjustment to the long marginal ray shape of the second road light around the register pin axis anglec of rotation.Adjusting mechanism III is when realizing dichronic mirror two installation functions, screw-in, back-out by set screw, realized that dichronic mirror two is around the axis rotation of the summit composition of two semicircle boss up and down, realized the adjustment to the long marginal ray shape of Third Road light, the adjustment of Third Road light minor face light shape is directly by guaranteeing dichronic mirror two installing and locating.
Advantage of the present utility model is:
1, integrate carrying and adjustment function, function is concentrated, structure is unique, strength stability good, and manufacturing cost is moderate.
2, optical element adopts elastic type to fix, and avoids part to rigidly fix stressed for a long time and the not good problem of generation stress equistability, has promoted the reliability of optical property.
3, method of operating is easy, and sense of direction is strong, produces and has realized the separate modular assembling, and it is convenient to change.
Description of drawings
Fig. 1 is a light engine beam split light adjusting system schematic diagram.
Fig. 2 is a light shape synoptic diagram.
Fig. 3 is a light engine light-path adjusting mechanism installation site synoptic diagram.
Fig. 4 is load bearing seat one structural representation among the adjusting mechanism I.
Fig. 5 is load bearing seat two structural representations among the adjusting mechanism I.
Fig. 6 is load bearing seat two and load bearing seat one assembling back adjusting mechanism I structural representation.
Fig. 7 is a catoptron load bearing base structure synoptic diagram among the adjusting mechanism II.
Fig. 8 is the catoptron load bearing base structure synoptic diagram of another projecting direction.
Fig. 9 is an adjusting mechanism II structural representation behind the installation catoptron.
Figure 10 is the adjusting mechanism II structural representation of another projecting direction.
Figure 11 is dichronic mirror two load bearing base structure synoptic diagram among the adjusting mechanism III.
Figure 12 is the dichronic mirror two load bearing base structure synoptic diagram of another projecting direction.
Figure 13 installs dichronic mirror two back adjusting mechanism III structural representations.
Figure 14 is the adjusting mechanism III structural representation of another projecting direction.
Embodiment
Below in conjunction with accompanying drawing, be example with three-sheet type LCOS light engine light-path adjusting mechanism, the utility model is further described.
As Fig. 1, shown in Figure 3, connecting main body (6) goes up according to the light path position, distribution is equipped with the adjusting mechanism I that is used for carrying and adjusts lens (2) position, is used for the adjusting mechanism II of carrying and adjustment catoptron (4) position, is used for carrying and adjusting the adjusting mechanism III of dichronic mirror two (5) positions.By adjusting mechanism I, adjusting mechanism II, adjusting mechanism III, can distinguish the position of corresponding adjustment lens (2), catoptron (4), dichronic mirror two (5), thereby realize long limit and minor face red, blue light red, blue, green glow are adjusted.
As Fig. 4, Fig. 5, shown in Figure 6, adjusting mechanism I is by load bearing seat one (7), load bearing seat two (8) constitutes, lens (2) are by load bearing seat one (7) last three draw-in grooves (71), (72), (73) clamp and be fixed on the load bearing seat one (7), load bearing seat two (8) be connected main body (6) by connecting the elongated slot (63a) that main body (6) goes up left and right directions, (63b) with screw (13a), (13b) connection is (clear for making drawing, only illustrate load bearing seat two (8) and be connected main body (6) annexation, structure when not expressing both connections and putting in place), load bearing seat one (7) both sides have two vertical plates respectively, totally four vertical plates (74a), (74b), (74c), (74d), load bearing seat two (8) both sides have four vertical slots (81a) altogether, (81b), (81c), (81d), four vertical plates insert in four vertical slots respectively and can move up and down by vertical relatively slot, be connected with the set screw (9) that vertical direction is provided with on load bearing seat two (8) the upper end top boards (82), on the top board (75) of set screw (9) bottom conflict load bearing seat one (7) upper end, be provided with spring (12a) between load bearing seat one (7) bottom surface and load bearing seat two (8) lower ends, (12b); Be positioned on the side plate (61) of connection main body (6) of load bearing seat 21 sides and be connected with the set screw (10) that horizontal direction is provided with, be provided with spring (11) between the side plate (83) of set screw (10) bottom conflict load bearing seat two (8), the side plate (84) of load bearing seat two (8) opposite sides and another side plate (62) that is connected main body (6).The screw-in of the set screw (9) by vertical direction, screw out and to adjust load bearing seat one (7) and move up and down with respect to load bearing seat two (8), screw-in, the back-out of the set screw (10) by horizontal direction, can adjust load bearing seat two (8) with respect to connecting main body (6) move left and right, realize the adjustment of lens (2) above-below direction, left and right directions, thereby realize adjustment respectively minor face light shape He the long marginal ray shape of ruddiness.
As Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, adjusting mechanism II is made of catoptron load bearing seat (14), has catoptron (4) base to catoptron (4) when installing on the catoptron load bearing seat (14), the back side, the surface level that side positions respectively (141), positive facade (142), side elevation (143), catoptron load bearing seat (14) lower end has shell fragment (144a), (144b), the upper end has shell fragment (144c), (144d), all shell fragments are conflicted in catoptron (4) front, catoptron load bearing seat (14) upper end and the back side that is positioned at catoptron (4) are connected with set screw (15), set screw (15) is connected on the catoptron load bearing seat (14) by the threaded hole seat (147) of catoptron load bearing seat (14) upper end, conflict catoptron (4) back side, set screw (15) bottom.Two kidney slots (145a), (145b) that catoptron load bearing seat (14) bottom has symmetry, have on two kidney slots (145a) of catoptron load bearing seat bottom, the symmetrical center line of (145b) one be connected main body (6) on the hole can relatively rotate the register pin (146) of cooperation, catoptron load bearing seat (14) is by two kidney slots (145a), (145b) and be connected main body (6) and connect with screw.Screw-in, back-out by set screw (15), realized that catoptron (4) is around the intersecting lens rotation to the surface level (141) of catoptron installing and locating, positive facade (142), realization is to the adjustment of the minor face light shape of blue light, by adjusting dichronic mirror two load bearing seats around register pin (146) the axis anglec of rotation, realize connecting main body (6) rotation relatively, thereby realize adjustment the long marginal ray shape of blue light.
As Figure 11, Figure 12,13, shown in Figure 14, adjusting mechanism III is made of dichronic mirror two load bearing seats (16), the surface level (161) of when having dichronic mirror two (5) installations on dichronic mirror two load bearing seats (16) base and the side of dichronic mirror two (5) being located, side elevation (162), up and down each semicircle boss (163a) spacing to dichronic mirror two (5) back sides, (163b), dichronic mirror two inserts surface level (161), side elevation (162) and semicircle boss (163a), (163b), dichronic mirror two load bearing seat upper and lower sides have a shell fragment (164a) respectively, (164b), shell fragment (164a), (164b) conflict in dichronic mirror two (5) fronts, dichronic mirror two load bearing seat sides are connected with set screw (17), set screw (17) is connected on dichronic mirror two load bearing seats (16) by the threaded hole seat (166) of dichronic mirror two load bearing seats (16) side, set screw (17) bottom conflict dichronic mirror two (5) back side side edge, dichronic mirror two load bearing seats (16) are by the screw hole (165a) of bottom, (165b) be connected main body (6) and be screwed connection.Screw-in, back-out by set screw (17), realize that dichronic mirror two (5) is around the axis rotation of the summit composition of two semicircle boss (163a), (163b) up and down, realization is to the adjustment of the long marginal ray shape of green glow, and the adjustment of green glow minor face light shape is directly by guaranteeing dichronic mirror two installing and locating.