CN100373202C

CN100373202C - Adjustable objective combination

Info

Publication number: CN100373202C
Application number: CNB2005100643897A
Authority: CN
Inventors: 林奇兴
Original assignee: Asia Optical Co Inc
Current assignee: Asia Optical Co Inc
Priority date: 2005-04-15
Filing date: 2005-04-15
Publication date: 2008-03-05
Anticipated expiration: 2025-04-15
Also published as: CN1847910A

Abstract

The present invention relates to an adjustable objective lens combination, which comprises an outer cylinder, a turning component mutually nested with the outer cylinder, an objective lens component movably positioned in the turning component, a limiting component and a decorative ring component fixedly connected with the turning component, wherein the limiting component is provided with a pressing ring and an elastic component, wherein the pressing ring is movably positioned in the decorative ring component and pressed and butted on one end of the objective lens component, and the elastic component is arranged between the outer cylinder and the other end of the objective lens component. Thus, the objective lens component is positioned between the elastic component and the pressing ring, and can cooperate with the positioning position of the pressure ring and the elastic acting force of the elastic component to adjust the distance corresponding to the outer cylinder.

Description

The adjustable objective group

Technical field

The present invention relates to a kind of objective lens, particularly relate to a kind of adjustable objective group that can adjust relative distance.

Background technology

Referring to Fig. 1, general objective lens 1 can be installed on the alignment clamp 2, and alignment clamp 2 has an end 21 that connects objective lens 1, the other end 23 that connects an eyepiece group 22, and is arranged on one upright group (scheming not show) of

objective lens

1 and 22 of eyepiece groups.

Referring to Fig. 2, Fig. 3, objective lens 1 consists predominantly of a urceolus 11, single-revolution ring 12, an objective lens unit 13, a circlets assembly 14, and a limit assembly 15.

Pivoted loop 12 screws togather with urceolus 11, and can be along an axis X direction displacement in the turn process.

Objective lens unit 13 is contained in the urceolus 11 and can does the displacement of limited travel along the axis X direction, and has the objective tube 131 around axis X, and is fixed on two object lens 132 in the objective tube 131.

Circlets assembly 14 has around a circlets 141 of axis X and a colour circle 142.Circlets 141 partly is bolted in pivoted loop 12 inside surfaces 121, and can decorations integral body.Colour circle 142 respectively along the axis X direction in abutting connection with pivoted loop 12 with circlets 141, prevent that circlets 141 and pivoted loop 12 from having the situation of thread biting locking when screwing togather, can adopt simultaneously to be different from circlets 141 and to have decorative effect with the color of pivoted loop 12.

Limit assembly 15 has around a pressure ring 151 of axis X and an elastic parts 152.Pressure ring 151 is arranged in pivoted loop 12 1 inside surfaces 121, and is resisted against objective tube 131 1 ends.Elastic parts 152 is contained in the urceolus 11, and compels to be against objective tube 131 other ends, and objective lens unit 13 permanent guarantors are resisted against on the pressure ring 151.

Referring to Fig. 1, Fig. 3, when user's turn pivoted loop 12 during along the displacement of axis X direction, can drive pressure ring 151 and circlets 141 synchronously, make pressure ring 151 advance to move or retire along the axis X direction, at this moment, elastic parts 152 can be by elastic acting force, the displacement that cooperates pressure ring 151 advance and retreat, make objective lens unit 13 in urceolus 11 along the displacement of axis X direction, whereby, reach the purpose of adjusting focal length.Though but above-mentioned structure has the function of focusing, yet, when it is made in reality, still there is following disappearance and needs to be resolved hurrily:

1. more accurate in order to make the thing focal length, general optical devices such as alignment clamp 2 all can screw togather the variation of the degree of depth by pressure ring 151 and pivoted loop 12 before dispatching from the factory, change the distance of objective lens unit 13 with respect to 22 of eyepiece components, and then adjust parallax.But, objective lens unit 13 can cooperate the different optical device, and has specific total length, therefore, constant at total length, and pressure ring 151 is located under the situation of pivoted loop 12 inside surfaces 121 with 142 while of circlets spiral shell, pressure ring 151 can be subject to other assembly, make the distance L 1 that to do the parallax adjustment seem suitable short and small, have parallax to adjust the enough and to spare deficiency, the disappearance of influence focusing degree of accuracy.

Moreover, when adjusting parallax, must remove circlets 141, could adjust the degree of depth that screws togather of pressure ring 151 and pivoted loop 12, adjusting when keeping in repair quite inconvenience and consuming time.

3. and under the constant situation of total length, pivoted loop 12 must have enough length, could screw togather with urceolus 11, pressure ring 151 and circlets 141, therefore, the variability of position is little, and the degree of accuracy of supposing parallax is error free, though can omit the distance L 1 that parallax is adjusted, also can be because of suitable short and small of distance L 1, make pivoted loop 12 outward appearance length can allow the scope that changes less, so, the difficult variation that has in the appearance design of pivoted loop 12, and can't take into account the overall aesthetic of face shaping usually, the limited disappearance of face shaping is arranged.

Summary of the invention

The object of the present invention is to provide a kind of adjustable objective group that has more variability and can increase parallax adjustment enough and to spare.

The invention is characterized in: the adjustable objective group comprises: a urceolus, single-revolution assembly, an objective lens unit, a circlets assembly and a limit assembly.Urceolus has around an axis and defines a ring wall of an object lens chamber.Gyro black assembly has the single-revolution ring around axis, and pivoted loop is to screw togather mutually with urceolus, and can be along the axis direction displacement.Objective lens unit is that to be contained in object lens indoor movablely, and has the objective tube around axis, and is fixed on the object lens in the objective tube.The circlets assembly has the circlets around axis, and circlets is to be spirally connected along axis direction and gyro black assembly.Limit assembly has a pressure ring and an elastic parts, pressure ring is to screw togather mutually along axis direction and circlets, and compel to be against objective tube one end, make pressure ring by screwing togather the position location of degree of depth adjustment along axis direction, it is indoor that elastic parts is contained in object lens, and have a positioning end that is positioned at urceolus, and compel to be against one of the objective tube other end and compel to support end, objective lens unit is positioned between elastic parts and pressure ring.

Effect of the present invention is the simplification in the time of promoting focusing degree of accuracy and adjustment maintenance, and can make outward appearance have more variability.

Description of drawings

The present invention is described in detail below in conjunction with drawings and Examples.

Fig. 1 is a front elevation, and general alignment clamp is described.

Fig. 2 is an exploded view, and an objective lens of aforementioned alignment clamp is described.

Fig. 3 is a cut-open view, and the structural relation of aforementioned objective lens is described.

Fig. 4 is a three-dimensional exploded view, and a preferred embodiment of the present invention's one adjustable objective group is described.

Fig. 5 is an exploded view, illustrate have the single-revolution assembly in the preferred embodiment, an objective lens unit, a circlets assembly and a limit assembly.

Fig. 6 is a cut-open view, and the combination situations of preferred embodiment is described.

Fig. 7 is a cut-open view, and the length variations situation with preferable enforcement is described.

Embodiment

Referring to Fig. 4, the preferred embodiment of adjustable objective group of the present invention is mounted on the alignment clamp (figure does not show) equally, includes: a urceolus 3, single-revolution assembly 4, an objective lens unit 5, a circlets assembly 6 and a limit assembly 7.

Referring to Fig. 5, Fig. 6, be respectively exploded view of the present invention, cut-open view, urceolus 3 have around an axis X and define an object lens chamber 31 a ring wall 32, be arranged on one first stop part 33 of ring wall 32 1 outside surfaces 321, and pass the caging bolt 34 that first stop part 33 and spiral shell are worn ring wall 32 1 inside surfaces 322, make first stop part 33 be fixed on ring wall 32 outside surfaces 321.

Gyro black assembly 4 has the single-revolution ring 41 around axis X, and one second stop part 42.Pivoted loop 41 screws togather with urceolus 3, and can be along the displacement of axis X direction.Second stop part 42 is that relative first stop part, 34 spiral shells are worn pivoted loop 41 1 inside surfaces 411.Pivoted loop 41 can around urceolus 3 ring walls 32 just, reverse turn, make second stop part, 42 relative first stop parts 33 be moved to mutual block, whereby, but the angle of placing restrictions on pivoted loop 41 turns is less than 360 degree.

Objective lens unit 5 is to be contained in the object lens chamber 31 movablely, and has an objective tube 51, and two object lens 52.Objective tube 51 has the inside surface 513 that is formed on an outside surface 511 and a conduit 512 that extends along the directions X that parallels to the axis, is in reverse to outside surface 511, form at one end and pass one first of object lens chamber 31 urges end 514, and is formed on the other end and is in reverse to first and urge one second of end 514 and urge end 515.Conduit 512 places for caging bolt 34.Aforementioned object lens 52 are fixed on the inside surface 513 of objective tube 51.

Circlets assembly 6 has around a circlets 61 of axis X and a colour circle 62.Circlets 61 is spirally connected along axis X direction and pivoted loop 41.Colour circle 62 respectively along the axis X direction in abutting connection with pivoted loop 41 with circlets 61, prevent that circlets 61 and pivoted loop 41 from having the situation of thread biting locking when screwing togather, can adopt simultaneously to be different from circlets 61 and to have decorative effect with the color of pivoted loop 41.

Limit assembly 7 has a pressure ring 71, the elastic parts 72 around axis X, and a location bolt 73.Pressure ring 71 is to be arranged in the circlets 61, and compels to be against objective tube 51 first and urge end 514, makes the pressure ring 71 can be by screwing togather the position location of degree of depth adjustment along the axis X direction.Elastic parts 72 is a compression spring at present embodiment, be to be contained in the object lens chamber 31 of urceolus 3, and have a positioning end 721 that is positioned on the ring wall 32, and and compel to be against objective tube 51 second and urge one on the end 515 and compel to support end 722, make objective lens unit 5 be positioned at 71 of elastic parts 72 and pressure rings.Bolt 73 spiral shells are worn circlets 61 and are compeled to be against on the pressure ring 71, make pressure ring 71 obtain the location.

When user's turn pivoted loop 41 during along the displacement of axis X direction, can drive the pressure ring 71 in circlets 61 and the circlets 61 synchronously, make pressure ring 71 advance to move towards the figure right side of face along the axis X direction, and push objective tube 51 elasticity of compression assemblies 72, be hampered by caging bolt 34 to conduit 512 left sides, object lens 52 are shortened and the eyepiece component distance of (figure does not show); Or pressure ring 71 can be retired in the left side along the axis X direction towards drawing, make objective tube 51 be subjected to the elastic-restoring force ejection of elastic parts 72 and retire towards drawing left side, permanent keep with pressure ring 71 mutually against state, be hampered by caging bolt 34 to conduit 512 right sides, object lens 52 are prolonged and the eyepiece component distance of (figure does not show), reach the purpose of adjustment the thing focal length.

Referring to Fig. 6, Fig. 7, what deserves to be mentioned is, pivoted loop 41 need only be spirally connected with urceolus 3 ring walls 32 and circlets 61, and pressure ring 71 is arranged in separately in the circlets 61, therefore, pivoted loop 41 in design, no longer be subject to the position of pressure ring 71, and can on the length and position, have bigger variation with urceolus 3, circlets 61, as shown in Figure 6, the length D1 of pivoted loop 41 is obviously greater than the length D2 of circlets 61, and the length of urceolus 3 is also longer, review shown in Figure 7ly, the length D1 of pivoted loop 41 slightly is shorter than the length D2 of circlets 61, and the length of urceolus 3 is shorter.

Importantly, pressure ring 71 can't be subject to other assembly, and and 61 of circlets have sizable distance L 2 that stroke is adjusted as parallax that screws togather.When pressure ring 71 and circlets 61 by the variation that screws togather the degree of depth, change objective lens unit 5 with respect to eyepiece component (figure does not show) apart from the time, can utilize bigger parallax to adjust distance L 2, the adjustable scope of amplification parallax.

And when adjusting parallax, only need pine oil bolt 73, do not need displacement to remove any assembly, just can adjust the degree of depth that screws togather of pressure ring 71 and circlets 61.

According to the above as can be known, adjustable objective group of the present invention has following advantage and effect:

1. can to make the distance L 2 that parallax adjusts obviously longer in the present invention, therefore, under the constant situation of total length, still has quite abundant parallax and adjust enough and to spare, and can make the thing focal length more precisely, makes the present invention have more practicality.

And the present invention can directly change the degree of depth that screws togather of pressure ring 71 and circlets 61, reach and adjust the parallax purpose, suitable simple and convenient when adjusting maintenance not only, and saving time and reduce cost.

3. be arranged in separately in the circlets 61 owing to pressure ring 71, therefore, pivoted loop 41 in design, no longer be subject to the position of pressure ring 71, and can on the length and position, have bigger variation with urceolus 3, circlets 61, and the present invention has quite abundant parallax and adjusts enough and to spare, can allow the scope that changes bigger on outward appearance length and position, even can under the situation of adjusting the enough and to spare abundance, shorten whole length, make the present invention can take into account the overall aesthetic of face shaping.

Claims

1. adjustable objective group is characterized in that it includes:

One urceolus has around an axis and defines a ring wall of an object lens chamber;

The single-revolution assembly has the single-revolution ring around axis, and pivoted loop is to screw togather mutually with urceolus, and can be along the axis direction displacement;

One objective lens unit is that to be contained in object lens indoor movablely, and has the objective tube around axis, and is fixed on the object lens in the objective tube;

One circlets assembly has the circlets around axis, and circlets is to be spirally connected along axis direction and gyro black assembly; And

One limit assembly, have a pressure ring and an elastic parts, pressure ring is to screw togather mutually along axis direction and circlets, and compel to be against objective tube one end, make pressure ring by screwing togather the position location of degree of depth adjustment along axis direction, it is indoor that elastic parts is contained in object lens, and have a positioning end that is positioned at urceolus, and compel to be against one of the objective tube other end and compel to support end, objective lens unit is positioned between elastic parts and pressure ring.

2. adjustable objective group as claimed in claim 1 is characterized in that, limit assembly also has a location bolt, and bolt is that spiral shell is worn circlets and compeled to be against on the pressure ring, makes pressure ring obtain the location.

3. adjustable objective group as claimed in claim 1, it is characterized in that, urceolus also has one first stop part that is installed in ring wall one outside surface, gyro black assembly also has one second stop part that relative first stop part is formed on pivoted loop one inside surface, second stop part be pivoted loop just, the relative first stop part displacement in the process of reverse turn, to mutual block, but the angle of pivoted loop turn is spent less than 360.

4. adjustable objective group as claimed in claim 1 is characterized in that objective lens unit also has a caging bolt, and objective tube has a conduit that is formed on an outside surface and extends along the direction that parallels to the axis, and caging bolt is that spiral shell is worn urceolus and protruded in the conduit.

5. adjustable objective group as claimed in claim 1 is characterized in that, the circlets assembly also has the colour circle around axis, and colour circle is respectively along axis direction in abutting connection with pivoted loop and circlets.