CN201514184U

CN201514184U - Device for measuring distance between optical lenses

Info

Publication number: CN201514184U
Application number: CN2009201773995U
Authority: CN
Inventors: 许庆林; 卢河源
Original assignee: PHENIX OPTICAL CO Ltd
Current assignee: PHENIX OPTICAL CO Ltd
Priority date: 2009-09-17
Filing date: 2009-09-17
Publication date: 2010-06-23
Anticipated expiration: 2019-09-17

Abstract

The utility model relates to a device for measuring the distance between optical lenses. The device comprises a metal measurement tool base, a ring, and a measurement block, wherein the ring is arranged on the metal measurement tool base; the inner hole of the ring fits the outer circle of the metal measurement tool base; one end face of a to-be-detected part is attached to a convex spherical surface of the metal measurement tool base, and the outer circle fits the inner hole of the ring; and the measurement block is arranged in the ring and is pressed on the other end face of the part to be detected. The device has the advantages of simple and convenient use, flexible measurement manner, field operation, high measurement accuracy and stability, high wear resistance, long service life, and short development period.

Description

Optical mirror slip spacing distance measurement mechanism

Technical field

The utility model relates to a kind of optical mirror slip spacing distance measurement mechanism.

Background technology

Be made up of the multi-disc optical mirror slip in the optical system of camera lens, between eyeglass and the eyeglass or between eyeglass and some benchmark certain required distance arranged, people are called the optical interval distance to it.These optical intervals distance be by structural members such as lens barrel or spacer rings with the mutual breasting of eyeglass, separate formation, the shape of these hardwares, dimensional accuracy will directly influence the size of optical interval distance.

The control of optical interval distance is the common important machining control project of optics industry, in order to ensure satisfying the optical interval required distance after part after making and the assembling, general method is to measure eyeglass and measurement mechanism by design standards, the standard eyeglass is carefully put on the upper surface of the part that processes, the measuring unit jacket casing is gone into the top of eyeglass, seek measurement point (the concave spherical surface minimum point of eyeglass with measuring gauge outfit again, protruding sphere peak), compare with the drawing design specification, whether qualified judge.This kind measuring method is looked for a difficulty, is difficult for finding the high point (convex lens sheet) of eyeglass, low spot (concave mirror sheet); Measurement result is restricted by people's experience, because when looking for, measuring head is frequent paddling on glass, measures glass and very easily weares and teares, and is not durable, and also has the potential danger of bulk article false judgment; Optical glass fragility is big, very easily damages and smashes, and the manufacturing cost that detects eyeglass is higher.Because wait the manufacturing of eyeglass to be measured to finish the part that just can manufacture experimently the optical interval required distance, so the R﹠D cycle of new product is elongated, be unfavorable for that enterprise races against time, in the face of market competition.

The utility model changes the traditional measurement thoughtcast, converts reference glass to metal material.And be transformed into the mode of indicator lining face by the metering system that indicator is sought height, and saved the time of measuring, improved accuracy for measuring.

Summary of the invention

It is convenient and swift that the utility model provides a kind of measurement, measuring accuracy height, good stability, the optical mirror slip spacing distance measurement mechanism of long service life.

The utility model solves by following technical proposal: this device is made of metal cubing seat, lasso, detection piece, wherein lasso is located on the metal cubing seat, its lasso endoporus cooperates with metal cubing seat cylindrical, the protruding sphere of the end face to be measured of part to be checked and metal cubing seat is fitted, its cylindrical cooperates with the lasso endoporus, measure packagedly in lasso, be pressed in another end face of part to be checked.

Description of drawings

Fig. 1 is the utility model example structure synoptic diagram

Embodiment

As shown in Figure 1, this device is made of metal cubing seat 1, lasso 3, measurement piece 4, wherein lasso 3 is located on the metal cubing seat 1, its lasso 3 endoporus cooperate with metal cubing seat 1 cylindrical, the protruding sphere of the end face to be measured of part 2 to be checked and metal cubing seat 1 is fitted, its cylindrical cooperates with lasso 3 endoporus, measures piece 4 and is contained in the lasso 3, is pressed in another end face of part 2 to be checked.

Measuring method is: by measuring L1, and L2, L3 calculates the size of space and is: HO=L1-L2-L3, compare with the drawing specification, make acceptance or rejection and judge, adjust processing, because L2, L3 is known in advance, when actual production is measured, only measure L1 just can, very convenient quick

During the cubing structural design, the reliability and the operation convenience of cubing have been fully taken into account, measuring head is sought the recessed glass minimum point of optics make plane surveying on measurement piece 4 into, can also directly measure the L1 size with micrometer, the production scene is very easy to manipulate.

Correct grinding form after measurement piece 4 can quench with 45 steel, or with doing the hard chrome plating processing after the copper material processing again, such measurement piece is wear-resisting and revise very convenient simple.

To detect eyeglass in the design and convert the metal cubing seat 1 that has only the single face sphere to, the material selection copper material is accurately done plating hard chromium on surface and is handled behind the Vehicle Processing sphere, improve the wearing quality that sphere contacts with part in measuring process.

There are differences with detecting eyeglass R value even if detect the sphere R value of base, also do not worry measuring accuracy, can revise the drawing specification requirement through calculating, do criterion by revised specification requirement according to the detection base R value of actual measurement.

Disposal route behind the measurement base sphere abrasion is handled with above-mentioned method.

In sum, the utility model has changed the traditional measurement thoughtcast, converts reference glass to metal material.And be transformed into the mode of indicator lining face by the metering system that indicator is sought height, and using simple and fast, metering system is flexible, is convenient to execute-in-place, and measuring accuracy and stability improve, and cubing is wear-resisting, and long service life shortens the research and development of products cycle.

Claims

1. optical mirror slip spacing distance measurement mechanism, it is characterized in that: this device is made of metal cubing seat, lasso, detection piece, wherein lasso is located on the metal cubing seat, its lasso endoporus cooperates with metal cubing seat cylindrical, the protruding sphere of the end face to be measured of part to be checked and metal cubing seat is fitted, its cylindrical cooperates with the lasso endoporus, measures packagedly in lasso, is pressed in another end face of part to be checked.